Search Weight Loss Topics:


Page 213«..1020..212213214215..220230..»


Feb 24

Diets rich in food from the ocean and freshwater sources can help … – Science Daily

Blue foods -- those that come from the ocean or freshwater environments -- have tremendous potential to help address several global challenges. With careful implementation of policies that leverage these foods, nations could get a boost on efforts to reduce nutritional deficits, lower disease risk, decrease greenhouse gas emissions and ensure resilience in the face of climate change.

So say the team of experts at Blue Food Assessment, an international collaboration of scientists whose focus has been on the role of aquatic foods in global food systems. In a paper published today in the journal Nature, the scientists tease out the global-scale benefits of adding more blue food to the world's diet.

"Even though people around the world depend on and enjoy seafood, the potential for these blue foods to benefit people and the environment remains underappreciated," said UC Santa Barbara marine ecologist Ben Halpern, director of the National Center for Ecological Analysis & Synthesis and a member of the team. "With this work, we bring attention to these many possibilities and the transformative benefit that blue foods can have for people's lives and the environments in which they live."

Built on the landmark Blue Food Assessment, this study synthesizes the assessment's findings and translates them across four policy objectives related to nutrition, health environment and livelihoods. The research team reports that aquatic foods are rich in many essential nutrients, particularly vitamin B12 and omega-3 fatty acids, deficiencies of which are relatively high globally, especially in African and South American nations. Increasing the intake of blue foods in those areas could diminish malnutrition, particularly for vulnerable populations such as young children and elders, pregnant women and women of childbearing age.

Meanwhile, high incidence of cardiovascular disease -- a condition associated with excessive red meat consumption -- are mostly found in the rich, developed countries in North America and Europe. Promoting more freshwater or marine seafood here could displace some red and processed meat consumption and lower the risks and rates of developing heart disease.

More blue food can also result in a more environmentally friendly and sustainable food system. As aquatic food production exerts relatively lower environmental pressures than terrestrial meat production, a shift toward more blue foods could lower the toll that producing terrestrial livestock (particularly ruminants such as cows, sheep and goats) takes on the earth.

Carefully developed, aquaculture, mariculture and fishing also present opportunities for employment and can ensure the livelihoods of hundreds of millions of people worldwide, according to the researchers.

With thoughtful implementation of blue food policies that lower the barriers to blue food production and access, countries could avail of multiple benefits simultaneously, resulting in healthier people and a sustainable food system, as well as a better ability to adapt to changing environmental conditions. But not all countries will benefit to a uniform degree.

"Blue foods can play important roles in our diets, societies and economies, but what exactly this looks like will differ greatly from one country and local setting to another," said the study's lead author Beatrice Crona, a professor at the Stockholm Resilience Center at Stockholm University and co-chair of the Blue Food Assessment. "Our goal is for policy makers to fully understand the diverse contributions that blue foods can make, but also for them to consider the tradeoffs that need to be negotiated to really make the most of the opportunities that blue foods provide."

To that end, the team offers an online tool, where users can see the relevance of policy objectives around the world in the realms of nutrition, heart disease, environment and climate resilience.

"By further customizing the different parameters in the online tool, decisionmakers can explore the blue food policies most relevant for their national setting and use the paper to inspire blue food policies that can overcome existing environmental and nutritional challenges," said Jim Leape, co-director of the Stanford Center for Ocean Solutions, a key partner in the Blue Food Assessment.

This study is the latest in a series of peer-reviewed papers written by the Blue Food Assessment team in an effort to understand the potential for blue foods in the current and future global food system, and help inform and guide policies that will shape the future of food.

"Working closely with the large, international team of diverse experts in the Blue Food Assessment was amazing," Halpern said. "The integration and synthesis of all the ideas and knowledge that emerged from this work, and that we tried to capture in this paper, is really exciting."

See the rest here:
Diets rich in food from the ocean and freshwater sources can help ... - Science Daily

Read More..

Feb 24

Dry Scooping: A Risky Dietary Practice Popular Among Boys and … – SciTechDaily

A study based on the data collected from over 2,700 Canadian adolescents and young adults shows that dry scooping, a risky dietary practice, is more common among those who weight train and spend more time on social media. Around 17% of the participants in the study reported engaging in dry scooping at least once in the previous year, with an average frequency of 50 times. Dry scooping was more frequently reported by participants who showed clinically significant symptoms of muscle dysmorphia, which is a mental health condition characterized by the pathological pursuit of muscularity.

Findings from a recent Canadian study show that dry scooping is common, particularly among adolescent boys and young adult men.

A new study, published in the journal Eating Behaviors, has found that over 1 in 5 adolescent boys and young adult men have engaged in dry scooping, a novel dietary phenomenon described as ingesting pre-workout powders without a liquid (i.e., the entire scoop in one shot without mixing with water as intended).

Dry scooping can have serious health effects, including issues with inhalation, cardiac abnormalities, and digestive issues, says lead author Kyle T. Ganson, PhD, MSW, assistant professor at the University of Torontos Factor-Inwentash Faculty of Social Work, To date, however, there have been no epidemiological studies investigating the occurrence of dry scooping among young people, leaving significant information unknown.

Analyzing data from over 2,700 Canadian adolescents and young adults from the Canadian Study of Adolescent Health Behaviors, the researchers found that 17% of participants reported dry scooping at least one time in the previous year, and an average of 50 times over that time period. The researchers also found that participants who engaged in weight training and spent greater time on social media were more likely to report dry scooping.

Our data shows that novel dietary phenomena that become popularized on social media and within gym culture can lead to a greater likelihood of engagement, Ganson continued. We need to be thinking of these risk factors as potential areas of prevention and intervention.

The study also showed that participants who displayed clinically significant symptoms of muscle dysmorphia, a mental health condition characterized as the pathological pursuit of muscularity, were also more likely to report dry scooping. This finding underscores the potentially harmful behaviors one may engage in to achieve ones body ideal.

We need health care and mental health care providers to be knowledgeable of these unique dietary practices aimed at increasing performance and musculature, such as dry scooping, says Ganson.

The researchers called for more investigation on this topic, as well as prevention and intervention efforts, such as educating young people on the potential harms and lack of evidence of dry scooping.

Reference: Prevalence and correlates of dry scooping: Results from the Canadian Study of Adolescent Health Behaviors by Kyle T. Ganson, Laura Hallward, Alexander Testa, Dylan B. Jackson and Jason M. Nagata, 6 February 20, Eating Behaviors.DOI: 10.1016/j.eatbeh.2023.101705

The rest is here:
Dry Scooping: A Risky Dietary Practice Popular Among Boys and ... - SciTechDaily

Read More..

Feb 24

Dietary supplements: Reviewing their role, limitations and the … – NewsBreak Original

Roles of Dietary Supplements

Dietary supplements can play a role in supporting overall health and wellness by providing additional vitamins, minerals, or other nutrients that may be lacking in a person's diet. Here are some of their roles:

Limitations Of Dietary Supplements

Here are some of the key limitations of dietary supplements:

Types Of Dietary Supplements Based On Health Benefits

Here are some different types of dietary supplements based on their health benefits:

Misconceptions About Dietary Supplements

There are a number of misconceptions and myths surrounding dietary supplements, many of which can lead to confusion and even harm. Here are 10 common misconceptions about dietary supplements, along with explanations of why they are not accurate:

In conclusion, dietary supplements can play a role in supporting overall health and wellness by providing additional nutrients that may be lacking in a person's diet. It's important to approach dietary supplements with a critical eye and to be aware of the potential risks and limitations. While supplements can provide health benefits, they are not a replacement for a healthy diet and lifestyle or for medical treatment. It's important to speak with a healthcare provider before starting any new supplement regimen. It's important to keep these limitations in mind when considering whether or not to take dietary supplements. While they can provide health benefits, they are not a replacement for medical treatment or a healthy diet and lifestyle. It's important to speak with a healthcare provider before starting any new supplement regimen.

References

Bailey, R. L., Gahche, J. J., Miller, P. E., Thomas, P. R., & Dwyer, J. T. (2013). Why US adults use dietary supplements. JAMA Internal Medicine, 173(5), 355-361.

National Institutes of Health Office of Dietary Supplements. (2022). Dietary Supplements: What You Need to Know. Retrieved from https://ods.od.nih.gov/HealthInformation/DS_WhatYouNeedToKnow.aspx

Institute of Medicine. (2006). Dietary Reference Intakes: The Essential Guide to Nutrient Requirements. National Academies Press.

National Institutes of Health Office of Dietary Supplements. (2022). Frequently Asked Questions: What dietary supplements should I avoid? Retrieved from https://ods.od.nih.gov/factsheets/WhatDietarySupplementsShouldIEvade-Consumer/

Food and Drug Administration. (2022). Dietary Supplements. Retrieved from https://www.fda.gov/food/dietary-supplements

More:
Dietary supplements: Reviewing their role, limitations and the ... - NewsBreak Original

Read More..

Feb 24

Calif. is a great place to find ‘diet weed,’ but consume with caution – SFGATE

I was halfway to the most remote grove of Sequoia trees on Earth when, for the first time in my life, I regretted smoking pot while hiking.

Usually, pot is a performance-enhancing drug for backpacking. It helps me sleep, eases achy muscles and keeps me hungry enough to consume the massive amounts of food you need to eat while backpacking.

But this time, something very strange happened. As I exhaled pot smoke on my first evening on the trail, I became more awake and suddenly had almost no interest in food. And then I realized I had made a terrible error. In my rush to pack for the trip, I hadnt brought normal cannabis. I had mistakenly packed "diet weed."

I was smoking a weed strain called Pink Boost Goddess, grown by Mendocino Countys Emerald Spirit Botanicals. It contains THCV, a unique compound that behaves wholly unlike THC, the most common intoxicant found in cannabis. This type of cannabis is extremely rare; however, California has become one of the best places in the world to find it.

THCV cannabis has earned the nickname diet weed because a growing body of research shows that THCV can make you feel energetic and reduce your appetite. It sounds like a stoner fairytale that a drug known for giving people the munchies could actually suppress your appetite. But theres actually some science to support these claims.

My mistake in the woods would have been almost impossible a decade ago. THCV cannabis has historically been exceptionally hard to find. Most cannabis plants do not produce this compound, and experts have traveled around the world looking for ones that do. In 2017, Vice followed a group of cannabis "strain hunters" to Africa as they looked for THCV cannabis. The journey was ill-fated one member of the group died from malaria yet they were still elated when they found one strain of pot with a mere 1.1% THCV.

But THCV is becoming increasingly easy to buy. The hemp industry sells synthetic THCV, and advances in cannabis breeding have allowed some California pot farms to grow strains of cannabis that naturally contain high levels of THCV.

Thats made California the best place in the country to experience this very strange weed. You can find cannabis flower that tests over 10% THCV. There are cannabis pills that contain precise doses of THCV. And even PBR is putting THCV into its weed drinks sold in California.

The Pink Boost Goddess I smoked in the Sierra contains between 5% and 11% THCV and between 8% and 16% THC. Joseph Haggard, one of the owners of Emerald Spirit Botanicals, told me that his mother had found the cannabis strain via a friend in Mendocino County in 2016. The family farm then started breeding the plant to increase its THCV content.

A jar of Pink Boost Goddess sits on retail shelves at the Solful cannabis dispensary in San Francisco.

Haggard said theyve noticed the strain has appetite-regulating effects but cautioned that he doesnt think smoking THCV alone could cause you to lose weight. He said the strains energizing effects are especially notable: It leaves you focused and energized. Youre joyful, but you want to get up and do something.

Laurie Vollen, a Berkeley medical doctor who specializes in medical marijuana, said a handful of her patients have used THCV over the past 10 years. She usually recommends it to people who have issues gaining weight or people who want cannabis to help with creative projects like writing.

Ive been working with it for a number of years, and primarily, my initial interest came from the very early reports of no increase in appetite, Vollen said. ... I had a few patients [using THCV flower], and they have noticed that its not an appetite stimulant in any way.

Vollen said she thinks THCV has the potential to help treat obesity or even diabetes, but for now, there isnt enough evidence for it to be a primary treatment for either. Im not going to contend that I have had patients with weight loss [from using THCV], Vollen said.

THCV cannabis has not been approved by the Food and Drug Administration as a weight loss drug, and theres no published research testing THCV cannabis as an appetite suppressant in a clinical trial. That hasnt stopped some pot companies from claiming otherwise.

Wana Brands, a Colorado company, said on its website that a clinical trial found that 100 of 100 people lost weight while using its THCV edible, but when the New York Times investigated, it found that the trial may have been entirely fabricated.

And yet, I clearly felt my appetite fade away when I smoked THCV on my backpacking trip. Even if the clinical proof that THCV causes weight loss isnt there (yet), something interesting is still happening when we consume it. THCV is, in some ways, the chemical opposite of the normal THC we find in marijuana.

Regular THC gets you high by igniting your brain's CB1 receptors. Neuroscientists call THC a partial agonist of CB1 because it partially turns these receptors up, similar to how you partially illuminate a room by turning a dimmer switch halfway up. When THC turns CB1 receptors up, it causes a cascade of bodily functions that result in what we call the munchies. It can make food taste better and even make you feel hungry when youre full.

FILE: A cannabis plant grows at a pot farm in Humboldt County.

THCV, however, behaves very differently. THCV is considered a CB1 antagonist when consumed at low doses. That means it turns the dimmer switch down instead of up and could possibly have the opposite effect on appetite essentially giving us the reverse munchies.

Turning down our CB1 receptors has been linked to weight loss. In 2006, a French pharmaceutical company won approval in Europe for a weight loss drug called Rimonabant that was a CB1 blockade, meaning it turned these receptors off completely. The drug was effective at causing weight loss during large clinical trials, but it came with severe side effects. A concerning number of patients developed suicidal ideation and other mental health problems, leading the FDA to never approve the drug and European authorities to rescind approval in 2008.

Rimonabants concerning side effects should be a warning sign for people who use THCV cannabis, according to Sherry Yafai, a Santa Monica medical doctor and cannabis expert.

It is best to learn from prior research failures, in this case in particular, where the negative outcome resulted in death by suicide, Yafai wrote in an email to SFGATE. As physicians and scientists, when it comes to the brain, we can not be cavalier. It is even more important when it comes to a 'hot topic' ... like weight loss.

Yafai said we need more evidence, including clinical trials of THCV cannabis, before she starts widely recommending this type of cannabis. She has, however, recommended it to a few patients who were using cannabis to treat severe autism. Because these patients had severe weight problems, she advised they try THCV to help balance the use of THC, which can lead to increased appetite.

THCV is almost always combined with other compounds the Pink Boost Goddess strain has roughly the same amount of THC as THCV and thats a good thing, according to Chris Emerson, the founder and CEO of Sonoma Countys Level cannabis company. Emerson said consuming THCVby itself is not an enjoyable experience.

We found that THCV on its own tends to feel like you had a pot of coffee. You have all of this frenetic energy, and you cant really use it or focus, Emerson told SFGATE.

Level has been selling THCVproducts since 2017, always combining THCV with other cannabis compounds, like THC, CBD and CBG, another unique cannabis compound. Its Protab Boost product is a cannabis-infused pill that contains THC, THCV and CBG. Emerson said hes been taking it every afternoon for five years.

For me, it really gives me that pick-me-up and a little bit of motivation so I can work a little longer, or heres a task I dont really want to do ... Emerson said.

Emerson said THCV is best used for being productive, and if you take it for other reasons, you might be disappointed. The main complaint we get is that I didnt get high from it, but thats the point, Emerson said.

I understood THCVs uniqueness all too well after my backpacking trip. I didnt smoke any weed for the rest of the three days in the woods, even when I finally got to that remote grove of Sequoia trees. But accidentally packing diet weed also taught me that cannabis can be far more complex and powerful than the popular image of a stoner with the munchies makes it seem.

See the original post here:
Calif. is a great place to find 'diet weed,' but consume with caution - SFGATE

Read More..

Feb 24

Egg diet ‘reasonable’ to explain boxer’s failed doping test – The Associated Press – en Espaol

LONDON (AP) Conor Benn was cleared of intentional doping when the WBC ruled Wednesday that the British boxers consumption of eggs presented a reasonable explanation for his failed test.

Benns catchweight bout with Chris Eubank Jr. scheduled for last October had been canceled after Benns urine test showed trace amounts of fertility drug Clomiphene, a banned substance that boosts testosterone levels while burning fat.

The all-British bout was scheduled to take place 30 years after the fathers of Benn and Eubank Jr. Nigel Benn and Chris Eubank fought in the ring in one of British boxings great rivalries.

Mr. Benns documented and highly elevated consumption of eggs during the times relevant to the sample collection raised a reasonable explanation for the adverse finding, the WBC said in its ruling.

The WBC said it will reinstate the 26-year-old Benn in its rankings. The sanctioning body said there was no conclusive evidence that Mr. Benn engaged in intentional or knowing ingestion of Clomiphene.

Benns status remains in doubt despite the WBCs ruling.

British boxing authorities had called off Benns bout following the tests conducted by the Voluntary Anti-Doping Association. Benn, who has denied any wrongdoing, had then relinquished his license with the British Boxing Board of Control.

The board and UK Anti-Doping are still investigating.

The BBBoC has not been party to the review conducted by the WBC and has not been provided with sight of any evidence submitted on Mr. Benns behalf, the board said in a statement.

___

More AP boxing: https://apnews.com/hub/boxing and https://twitter.com/AP_Sports

See the original post:
Egg diet 'reasonable' to explain boxer's failed doping test - The Associated Press - en Espaol

Read More..

Feb 24

The link between a healthy diet and a healthy heart – HNGnews.com

Country

United States of AmericaUS Virgin IslandsUnited States Minor Outlying IslandsCanadaMexico, United Mexican StatesBahamas, Commonwealth of theCuba, Republic ofDominican RepublicHaiti, Republic ofJamaicaAfghanistanAlbania, People's Socialist Republic ofAlgeria, People's Democratic Republic ofAmerican SamoaAndorra, Principality ofAngola, Republic ofAnguillaAntarctica (the territory South of 60 deg S)Antigua and BarbudaArgentina, Argentine RepublicArmeniaArubaAustralia, Commonwealth ofAustria, Republic ofAzerbaijan, Republic ofBahrain, Kingdom ofBangladesh, People's Republic ofBarbadosBelarusBelgium, Kingdom ofBelizeBenin, People's Republic ofBermudaBhutan, Kingdom ofBolivia, Republic ofBosnia and HerzegovinaBotswana, Republic ofBouvet Island (Bouvetoya)Brazil, Federative Republic ofBritish Indian Ocean Territory (Chagos Archipelago)British Virgin IslandsBrunei DarussalamBulgaria, People's Republic ofBurkina FasoBurundi, Republic ofCambodia, Kingdom ofCameroon, United Republic ofCape Verde, Republic ofCayman IslandsCentral African RepublicChad, Republic ofChile, Republic ofChina, People's Republic ofChristmas IslandCocos (Keeling) IslandsColombia, Republic ofComoros, Union of theCongo, Democratic Republic ofCongo, People's Republic ofCook IslandsCosta Rica, Republic ofCote D'Ivoire, Ivory Coast, Republic of theCyprus, Republic ofCzech RepublicDenmark, Kingdom ofDjibouti, Republic ofDominica, Commonwealth ofEcuador, Republic ofEgypt, Arab Republic ofEl Salvador, Republic ofEquatorial Guinea, Republic ofEritreaEstoniaEthiopiaFaeroe IslandsFalkland Islands (Malvinas)Fiji, Republic of the Fiji IslandsFinland, Republic ofFrance, French RepublicFrench GuianaFrench PolynesiaFrench Southern TerritoriesGabon, Gabonese RepublicGambia, Republic of theGeorgiaGermanyGhana, Republic ofGibraltarGreece, Hellenic RepublicGreenlandGrenadaGuadaloupeGuamGuatemala, Republic ofGuinea, RevolutionaryPeople's Rep'c ofGuinea-Bissau, Republic ofGuyana, Republic ofHeard and McDonald IslandsHoly See (Vatican City State)Honduras, Republic ofHong Kong, Special Administrative Region of ChinaHrvatska (Croatia)Hungary, Hungarian People's RepublicIceland, Republic ofIndia, Republic ofIndonesia, Republic ofIran, Islamic Republic ofIraq, Republic ofIrelandIsrael, State ofItaly, Italian RepublicJapanJordan, Hashemite Kingdom ofKazakhstan, Republic ofKenya, Republic ofKiribati, Republic ofKorea, Democratic People's Republic ofKorea, Republic ofKuwait, State ofKyrgyz RepublicLao People's Democratic RepublicLatviaLebanon, Lebanese RepublicLesotho, Kingdom ofLiberia, Republic ofLibyan Arab JamahiriyaLiechtenstein, Principality ofLithuaniaLuxembourg, Grand Duchy ofMacao, Special Administrative Region of ChinaMacedonia, the former Yugoslav Republic ofMadagascar, Republic ofMalawi, Republic ofMalaysiaMaldives, Republic ofMali, Republic ofMalta, Republic ofMarshall IslandsMartiniqueMauritania, Islamic Republic ofMauritiusMayotteMicronesia, Federated States ofMoldova, Republic ofMonaco, Principality ofMongolia, Mongolian People's RepublicMontserratMorocco, Kingdom ofMozambique, People's Republic ofMyanmarNamibiaNauru, Republic ofNepal, Kingdom ofNetherlands AntillesNetherlands, Kingdom of theNew CaledoniaNew ZealandNicaragua, Republic ofNiger, Republic of theNigeria, Federal Republic ofNiue, Republic ofNorfolk IslandNorthern Mariana IslandsNorway, Kingdom ofOman, Sultanate ofPakistan, Islamic Republic ofPalauPalestinian Territory, OccupiedPanama, Republic ofPapua New GuineaParaguay, Republic ofPeru, Republic ofPhilippines, Republic of thePitcairn IslandPoland, Polish People's RepublicPortugal, Portuguese RepublicPuerto RicoQatar, State ofReunionRomania, Socialist Republic ofRussian FederationRwanda, Rwandese RepublicSamoa, Independent State ofSan Marino, Republic ofSao Tome and Principe, Democratic Republic ofSaudi Arabia, Kingdom ofSenegal, Republic ofSerbia and MontenegroSeychelles, Republic ofSierra Leone, Republic ofSingapore, Republic ofSlovakia (Slovak Republic)SloveniaSolomon IslandsSomalia, Somali RepublicSouth Africa, Republic ofSouth Georgia and the South Sandwich IslandsSpain, Spanish StateSri Lanka, Democratic Socialist Republic ofSt. HelenaSt. Kitts and NevisSt. LuciaSt. Pierre and MiquelonSt. Vincent and the GrenadinesSudan, Democratic Republic of theSuriname, Republic ofSvalbard & Jan Mayen IslandsSwaziland, Kingdom ofSweden, Kingdom ofSwitzerland, Swiss ConfederationSyrian Arab RepublicTaiwan, Province of ChinaTajikistanTanzania, United Republic ofThailand, Kingdom ofTimor-Leste, Democratic Republic ofTogo, Togolese RepublicTokelau (Tokelau Islands)Tonga, Kingdom ofTrinidad and Tobago, Republic ofTunisia, Republic ofTurkey, Republic ofTurkmenistanTurks and Caicos IslandsTuvaluUganda, Republic ofUkraineUnited Arab EmiratesUnited Kingdom of Great Britain & N. IrelandUruguay, Eastern Republic ofUzbekistanVanuatuVenezuela, Bolivarian Republic ofViet Nam, Socialist Republic ofWallis and Futuna IslandsWestern SaharaYemenZambia, Republic ofZimbabwe

Read more:
The link between a healthy diet and a healthy heart - HNGnews.com

Read More..

Feb 24

Unless things change, first zettaflop systems will need nuclear power, AMD’s Su says – The Register

Within the next 10 years, the world's most powerful supercomputers won't just simulate nuclear reactions, they may well run on them. That is, if we don't take drastic steps to improve the efficiency of our compute architectures, AMD CEO Lisa Su said during her keynote at the International Solid-State Circuits Conference this week.

The root of the problem is that while companies like AMD and Intel have managed to roughly double the performance of their CPUs and GPUs every 2.4 years, and companies like HPE, Atos, and Lenovo have achieved similar gains roughly every 1.2 years at the system level, Su says power efficiency is lagging behind.

Citing the performance and efficiency figures gleaned from the top supercomputers, AMD says gigaflops per watt is doubling roughly every 2.2 years, about half the pace the systems are growing.

Assuming this trend continues unchanged, AMD estimates that we'll achieve a zettaflop-class supercomputer in about 10-years give or take. For reference, the US powered on its first exascale supercomputer, Oak Ridge National Laboratory's Frontier system, last year. A supercomputer capable of a zettaflop of FP64 performance would be 1,000x more powerful.

To AMD's credit, its estimate for when we'll cross the zettaflop barrier is at least a little more conservative than Intel's rather hyperbolic claims that it'd cross that threshold by 2027. What's more, the AMD CEO says such a machine won't exactly be practical unless compute architectures get drastically more efficient and soon.

If things continue on their current trajectory, AMD estimates that a zettaflop-class supercomputer would need somewhere in the neighborhood of 500 megawatts of power. "That's probably too much," Su admits. "That's on the scale of what a nuclear power plant would be."

"This flattening of efficiency becomes the largest challenge that we have to solve, both from a technology standpoint as well as from a sustainability standpoint," she said. "Our challenge is to figure out how over the next decade we think about compute efficiency as the number one priority."

Part of the problem facing chipmakers is the means they've traditionally relied on to achieve generational efficiency gains are becoming less effective.

Echoing Nvidia's leather jacket aficionado and CEO Jensen Huang, Su admits Moore's Law is slowing down. "It's getting much, much harder to get density performance as well as efficiency" out of smaller process tech.

"As we get into the advanced nodes, we still see improvements, but those improvements are at a much slower pace," she added, referencing efforts to shrink process tech much beyond 5nm or even 3nm.

But while improvements in process tech are slowing down, Su argues there are still opportunities to be had, and, perhaps unsurprisingly, most of them center around AMD's chiplet-centric worldview. "The package is the new motherboard," she said.

Over the past few years, several chipmakers have embraced this philosophy. In addition to AMD, which arguably popularized the approach with its Epyc datacenter chips and later brought the tech to its Instinct GPUs, chipmakers including Intel, Apple, and Amazon are now employing multi-die architectures to combat bottlenecks and accelerate workloads.

Chiplets, argues the AMD boss, will allow chipmakers to address three of the low hanging fruits when it comes to compute efficiency: compute energy, communications energy, and memory energy.

Modular chiplet or tile architectures have numerous advantages. For instance, they can allow chipmakers to use optimal process tech for each component. AMD uses some of TSMC's densest process tech for its CPUs and GPU dies, but often employs larger nodes for things like I/O and analog signaling which don't scale as efficiently.

Chiplets also help reduce the amount of power required for communications between the components since the compute, memory, and I/O can be packaged in closer proximity. And when stacked vertically, as AMD has done with SRAM on its X-series Epycs and Intel is doing with HBM on its Ponte Vecchio GPUs, the gains are even greater, the chipmakers claim.

AMD expects advanced 3D packaging techniques will yield 50x more efficient communications compared to conventional off-package memory and I/O.

This is no doubt why AMD, Intel, and Nvidia have started integrating CPUs, GPUs, and AI accelerators into their next-gen silicon. For example, AMD's upcoming MI300 will integrate its Zen 4 CPU cores with its CDNA3 GPUs and a boatload of HBM memory. Intel's Falcon shores platform will follow a similar trajectory. Meanwhile, Nvidia's Grace Hopper superchips, while not integrated to the same degree, still co-package an Arm CPU with 512GB of LPDDR5 with a Hopper GPU die and 80GB of HBM.

AMD isn't stopping at CPUs, GPUs, or memory either. The company has thrown its support behind the Universal Chiplet Interconnect Express (UCIe) consortium, which is trying to establish standards for chiplet-to-chiplet communication, so a chiplet from one vendor can be packaged alongside one from another.

AMD is also is actively working to integrate IP from its Xilinx and Pensando acquisitions into new products. During Su's keynote, she highlighted the potential for co-packaged optical networking, stacked DRAM, and even in-memory compute as potential opportunities to further improve power efficiency.

But while there's opportunity to improve the architecture, Su also suggests that it may be time to reevaluate the way we go about conducting HPC workloads, which have traditionally relied on high-precision computational simulation using massive datasets.

Instead, the AMD CEO makes the case that it may be time to make heavier use of AI and machine learning in HPC. And she's not alone in thinking this. Nvidia and Intel have both been pushing the advantages of lower precision compute, particularly for machine learning where trading a few decimal places of accuracy can mean the difference between days and hours for training.

Nvidia has arguably been the most egregious, claiming systems capable of multiple "AI exaflops." What they conveniently leave out, or bury in the fine print, is the fact they're talking about FP16, FP8, or Int8 performance, not the FP64 calculations typically used in most HPC workloads.

"Just taking a look at the relative performance over the last 10 years, as much as we've improved in traditional metrics around SpecInt Rate or flops, the AI flops have improved much faster," the AMD chief said. "They've improved much faster because we've had all these mixed precision capabilities."

One of the first applications of AI/ML for HPC could be for what Su refers to as AI surrogate physics models. The general principle is that practitioners employ traditional HPC in a much more targeted way and use machine learning to help narrow the field and reduce the computational power required overall.

Several DoE labs are already exploring the use of AI/ML to improve everything from climate models and drug discovery to simulated nuclear weapons testing and maintenance.

"It's early. There is a lot of work to be done on the algorithms here, and there's a lot of work to be done in how to partition the problems," Su said.

Follow this link:
Unless things change, first zettaflop systems will need nuclear power, AMD's Su says - The Register

Read More..

Feb 24

Weight loss expert shares 12 week diet for ‘rapid’ results – better than ‘slow and steady’ – Express

What's more, both groups of dieters were followed for three years and while both groups put weight on, the amounts were similar.

Katrina Purcell, a dietician who led the study, stated: Our results show that achieving a weight loss target is more likely, and drop-out is lower, if losing weight is done quickly."

However Dr Michael added an important caveat - rapid weight loss is not suitable for everyone and it's imperative dieters maintain the right balance of nutrients if they do decide to try it.

Dr Michael's very own rapid weight loss diet is called The Very Fast 800, where slimmers eat just 800 calories per day for eight weeks.

This aims to "kickstart significant weight loss and reset their metabolism".

Dr Michael explained that "the key to feeling satiated, while restricting calories, is to consume a moderately low-carb Mediterranean-style diet, rich in protein, fibre and healthy fats".

"If this approach is right for you, we recommend that you stay on this stage for a minimum of two weeks, though you can follow the plan for up to 12 weeks depending on your goals and how much weight you have to lose."

The results are huge, with the expert claiming that a typical weight loss following the programme is more than 10kg sustained over 12 months.

Following the Mediterranean diet, it's recommended that slimmers stock up on vegetables, low-calorie fruits such as apples and pears, nuts, seeds, legumes, whole grains, fish and seafood, poultry, eggs, dairy and healthy fats, staying away from processed foods.

Read the original:
Weight loss expert shares 12 week diet for 'rapid' results - better than 'slow and steady' - Express

Read More..

Feb 24

Pros and cons of new weight loss drug – The Lawton Constitution

Country

United States of AmericaUS Virgin IslandsUnited States Minor Outlying IslandsCanadaMexico, United Mexican StatesBahamas, Commonwealth of theCuba, Republic ofDominican RepublicHaiti, Republic ofJamaicaAfghanistanAlbania, People's Socialist Republic ofAlgeria, People's Democratic Republic ofAmerican SamoaAndorra, Principality ofAngola, Republic ofAnguillaAntarctica (the territory South of 60 deg S)Antigua and BarbudaArgentina, Argentine RepublicArmeniaArubaAustralia, Commonwealth ofAustria, Republic ofAzerbaijan, Republic ofBahrain, Kingdom ofBangladesh, People's Republic ofBarbadosBelarusBelgium, Kingdom ofBelizeBenin, People's Republic ofBermudaBhutan, Kingdom ofBolivia, Republic ofBosnia and HerzegovinaBotswana, Republic ofBouvet Island (Bouvetoya)Brazil, Federative Republic ofBritish Indian Ocean Territory (Chagos Archipelago)British Virgin IslandsBrunei DarussalamBulgaria, People's Republic ofBurkina FasoBurundi, Republic ofCambodia, Kingdom ofCameroon, United Republic ofCape Verde, Republic ofCayman IslandsCentral African RepublicChad, Republic ofChile, Republic ofChina, People's Republic ofChristmas IslandCocos (Keeling) IslandsColombia, Republic ofComoros, Union of theCongo, Democratic Republic ofCongo, People's Republic ofCook IslandsCosta Rica, Republic ofCote D'Ivoire, Ivory Coast, Republic of theCyprus, Republic ofCzech RepublicDenmark, Kingdom ofDjibouti, Republic ofDominica, Commonwealth ofEcuador, Republic ofEgypt, Arab Republic ofEl Salvador, Republic ofEquatorial Guinea, Republic ofEritreaEstoniaEthiopiaFaeroe IslandsFalkland Islands (Malvinas)Fiji, Republic of the Fiji IslandsFinland, Republic ofFrance, French RepublicFrench GuianaFrench PolynesiaFrench Southern TerritoriesGabon, Gabonese RepublicGambia, Republic of theGeorgiaGermanyGhana, Republic ofGibraltarGreece, Hellenic RepublicGreenlandGrenadaGuadaloupeGuamGuatemala, Republic ofGuinea, RevolutionaryPeople's Rep'c ofGuinea-Bissau, Republic ofGuyana, Republic ofHeard and McDonald IslandsHoly See (Vatican City State)Honduras, Republic ofHong Kong, Special Administrative Region of ChinaHrvatska (Croatia)Hungary, Hungarian People's RepublicIceland, Republic ofIndia, Republic ofIndonesia, Republic ofIran, Islamic Republic ofIraq, Republic ofIrelandIsrael, State ofItaly, Italian RepublicJapanJordan, Hashemite Kingdom ofKazakhstan, Republic ofKenya, Republic ofKiribati, Republic ofKorea, Democratic People's Republic ofKorea, Republic ofKuwait, State ofKyrgyz RepublicLao People's Democratic RepublicLatviaLebanon, Lebanese RepublicLesotho, Kingdom ofLiberia, Republic ofLibyan Arab JamahiriyaLiechtenstein, Principality ofLithuaniaLuxembourg, Grand Duchy ofMacao, Special Administrative Region of ChinaMacedonia, the former Yugoslav Republic ofMadagascar, Republic ofMalawi, Republic ofMalaysiaMaldives, Republic ofMali, Republic ofMalta, Republic ofMarshall IslandsMartiniqueMauritania, Islamic Republic ofMauritiusMayotteMicronesia, Federated States ofMoldova, Republic ofMonaco, Principality ofMongolia, Mongolian People's RepublicMontserratMorocco, Kingdom ofMozambique, People's Republic ofMyanmarNamibiaNauru, Republic ofNepal, Kingdom ofNetherlands AntillesNetherlands, Kingdom of theNew CaledoniaNew ZealandNicaragua, Republic ofNiger, Republic of theNigeria, Federal Republic ofNiue, Republic ofNorfolk IslandNorthern Mariana IslandsNorway, Kingdom ofOman, Sultanate ofPakistan, Islamic Republic ofPalauPalestinian Territory, OccupiedPanama, Republic ofPapua New GuineaParaguay, Republic ofPeru, Republic ofPhilippines, Republic of thePitcairn IslandPoland, Polish People's RepublicPortugal, Portuguese RepublicPuerto RicoQatar, State ofReunionRomania, Socialist Republic ofRussian FederationRwanda, Rwandese RepublicSamoa, Independent State ofSan Marino, Republic ofSao Tome and Principe, Democratic Republic ofSaudi Arabia, Kingdom ofSenegal, Republic ofSerbia and MontenegroSeychelles, Republic ofSierra Leone, Republic ofSingapore, Republic ofSlovakia (Slovak Republic)SloveniaSolomon IslandsSomalia, Somali RepublicSouth Africa, Republic ofSouth Georgia and the South Sandwich IslandsSpain, Spanish StateSri Lanka, Democratic Socialist Republic ofSt. HelenaSt. Kitts and NevisSt. LuciaSt. Pierre and MiquelonSt. Vincent and the GrenadinesSudan, Democratic Republic of theSuriname, Republic ofSvalbard & Jan Mayen IslandsSwaziland, Kingdom ofSweden, Kingdom ofSwitzerland, Swiss ConfederationSyrian Arab RepublicTaiwan, Province of ChinaTajikistanTanzania, United Republic ofThailand, Kingdom ofTimor-Leste, Democratic Republic ofTogo, Togolese RepublicTokelau (Tokelau Islands)Tonga, Kingdom ofTrinidad and Tobago, Republic ofTunisia, Republic ofTurkey, Republic ofTurkmenistanTurks and Caicos IslandsTuvaluUganda, Republic ofUkraineUnited Arab EmiratesUnited Kingdom of Great Britain & N. IrelandUruguay, Eastern Republic ofUzbekistanVanuatuVenezuela, Bolivarian Republic ofViet Nam, Socialist Republic ofWallis and Futuna IslandsWestern SaharaYemenZambia, Republic ofZimbabwe

Continued here:
Pros and cons of new weight loss drug - The Lawton Constitution

Read More..

Feb 24

Peanut butter and banana Tiger Woods on eating and losing weight at the golf course – Sportskeeda

Modified Feb 22, 2023 11:47 GMT

Tiger Woods revealed that the best thing to eat on the golf course is a peanut butter and banana sandwich.

He shared this in a quick interview with Bess Junior:

He had revealed in his earlier interviews that he tends to lose weight quickly if he doesn't eat enough, which is why he eats seven meals a day.

Woods said:

Tiger Woods's diet is very non-athlete-like. He eats his go-to egg whites and veggie omelets for his post-workout breakfast, according to Topend Sports.

The golf veteran loves fish items such as sushi and Mediterranean diet-style dining at lunch. Sometimes he likes to have chicken too when he is at home.

The news that Tiger Woods would be participating in his first non-major PGA tournament in two years brought a sense of excitement and nervousness about how their favorite golfer would perform in his comeback tournament. It took some time for Woods to calm his nerves, but he soon got into the groove.

Despite showing some rustiness in some of his shots, Tiger's performance at the Genesis Invitational exceeded expectations. He started strong in the first round, scoring an impressive 2-under 67.

However, he struggled in the second round and posted a 3-over score. He made a comeback in the third round, playing exceptionally well with a score of 4-under, showcasing his veteran skills.

Although he had his moments, he ended up finishing in T45 after the fourth round with a score of 2-over 73 and hitting five bogeys on Sunday at Riveria Golf Club. It was still a commendable performance by the 82-time winner on the PGA Tour.

Genesis was his first non-major PGA Tour event since October 2020, with the golfer only having played in the PNC Championship and Capital One's exhibition "The Match" during this period.

Woods has been unable to play much due to severe leg injuries resulting from a car crash in 2021. He is still recovering from plantar fasciitis in his right foot as a result of the injuries.

By his own admission, Tiger's game was a bit rusty, as he didn't pick up the speed of the greens quickly, and there were some silly mistakes here and there. However, he said that his game was alright.

Tiger Woods has said that he won't be playing on the complete schedule of the PGA Tour.

Rather, he will pick and choose the events due to the limitations of the body. The 15-time Major winner has said that he will play in all four majors this year, and that will be his utmost priority.

The Masters will take place in April, and it seems Tiger's next target will be Augusta National.

Read the rest here:
Peanut butter and banana Tiger Woods on eating and losing weight at the golf course - Sportskeeda

Read More..

Contact Us Today


    Your Full Name

    Your Email

    Your Phone Number

    Select your age (30+ only)

    Select Your US State

    Program Choice

    Confirm over 30 years old

    Yes

    Confirm that you resident in USA

    Yes

    This is a Serious Inquiry

    Yes

    Message:


    Page 213«..1020..212213214215..220230..»

    matomo tracker