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Trim Your Tummy: A Comprehensive Guide to a Diet for Belly Fat Loss – Sportskeeda
Modified Apr 16, 2023 08:22 GMT
While exercise is important for general weight loss and health, following a diet for belly fat loss is crucial as well when you are targeting this specific part of your body. You can lose belly fat and reach your weight loss objectives by eating a diet high in lean protein, fiber-rich foods, healthy fats, complex carbohydrates, and probiotics.
These foods can assist in regulating your digestion, lowering inflammation, encouraging fullness, and preventing overeating. It's crucial to remember that a diet for belly fat loss demands focus and consistency.
Making healthy food choices and adhering to a well-planned diet will help you eventually reach your weight loss objectives, however, it can take some time to see the benefits.
Although it can be difficult, it is not impossible to lose belly fat. Dieting is extremely important in reducing belly fat, even though exercise can be helpful. Here are some of the healthiest foods to eat to lose belly fat and an example diet plan to get you started if you're trying to lose belly fat.
Lean proteins must be a part of your diet for belly fat loss. This is important for both weight loss and muscle growth and repair. You can feel fuller for longer periods of time and avoid overeating by consuming lean sources of protein including chicken, fish, turkey, tofu, and lentils.
Protein-rich foods aid in accelerating your metabolism, which facilitates weight loss. Protein not only helps you gain muscle mass but also stops your muscles from wasting away if you're following a calorie-restricted diet.
Food is slowed down as it moves through your digestive system thanks to soluble fiber and water, which creates a gel. This form of fiber encourages weight loss because it makes you feel satisfied for longer and helps you avoid overeating.
Remember to make adjustments to a high-fiber diet to gradually give your body time to acclimatize. If you increase your fiber intake too soon, you may experience adverse effects such as abdominal pain, cramps, and even diarrhea. Fruits, vegetables, whole grains, nuts, and seeds are among the foods high in fiber.
Consuming good fats can assist you in losing belly fat, despite seeming like a paradoxical proposition. Healthy fats can aid in reducing inflammation, enhancing heart health, and promoting satiety. Examples of these fats include avocados, nuts, seeds, and fatty fish.
The body needs carbohydrates for energy, but not all carbohydrates are created equal. Complex carbs, which are absorbed more gradually and are present in whole grains, fruits, and vegetables, can help control blood sugar levels and discourage overeating.
Good bacteria called probiotics aid with digestion and overall health since they dwell in your gut. Yogurt, kefir, sauerkraut, and kimchi are some examples of foods high in probiotics that can aid in promoting gut health and reducing belly fat.
Here are some tips that are going to help you achieve your goals in addition to a diet for belly fat loss:
You can stay on your diet plan and prevent impulsive eating by preplanning your meals. To make meal preparation easier, establish a shopping list and stock up on nutritious items.
Monitoring your food consumption and development may keep you inspired and on course. To keep track of your meals and workouts, use a smartphone app or a food journal.
Water consumption is crucial for overall health and weight loss. Aim to consume 8 to 10 glasses of water daily.
Your hormones and metabolism can be affected by a lack of sleep, which makes it more difficult to shed belly fat. Attempt to sleep for at least 7-8 hours every night.
It takes a combination of healthy food, exercise, and lifestyle modifications to lose belly fat. You can reach your weight loss objectives and lower your chances of developing chronic diseases by adhering to a well-planned diet for belly fat loss and leading a healthy lifestyle.
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Trim Your Tummy: A Comprehensive Guide to a Diet for Belly Fat Loss - Sportskeeda
Wanted To Be Freaky: Bodybuilding Legend Dorian Yates Admits to Tweaking a Part of His Diet for His Physique – EssentiallySports
The 1992 Mr. Olympia was particularly interesting. For the first time it was being held in Helsinki, Finland, and the competition took place in the Helsinki Ice Hall. That edition was also special for a British bodybuilding giant who had marked his arrival on stage big time. Dorian Yates won his first of 6 consecutive Mr. Olympia titles in 1992 in Finland. In a throwback image from before the competition, Yates recently revealed that he used to slightly alter his diet to get contest ready.
Dorian Yatess physique was widely regarded for its mass monster size, back in the 1990s. But the bodybuilder recently revealed that he didnt mind tweaking his diet and losing weight if need be. Heres what he shared.
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Dorian Yates recently took to Instagram to share an image of him from the early 1990s. The image shows his backside, while he was getting competition ready for the 1992 Olympia. He wrote, 4 weeks out from the 1992 Mr. O!, with his physique showing barely any signs of faults. He was stage ready and his diet was in check.
Yates continued, As I looked back on the pics and records, I realized that when I was 5 weeks out, I was contest ready but I lost another 12 lbs of mostly muscle. I overdid my diet and wanted to be freaky shredded. Yates shared an interesting tidbit. The man, known for his large muscular physique, realized that he pushed it too far in terms of his diet, in the last few weeks.
But he didnt repeat that mistake. He continued, I was determined not to make that mistake and came 17lbs heavier for the next contest. What Yates learned from his first Mr. Olympia title win performance is that, if he just came in heavy during the weeks leading up to the competition, he could lose weight according to will and still maintain a shredded physique.
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He started overdoing his diet every time from then on, and come a few weeks before the Olympia, he lost appropriate weight. This preparation process worked for Yates for 6 straight years till 1998. His golden run couldve continued further, if not for the several injuries he suffered throughout his career. It was particularly exacerbated towards the end, during which he was bound to quit.
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Yates used to keep detailed records of his competition results in order to learn from his mistakes. He is still learning from them and he is still working out. At age 60, Dorian Yates still has the perfect beach body, one to envy for. He serves as a fitness goal to millions of his followers.
Watch This Story:Liver Kings 12k steroids truth revealed, bodybuilding world reacts
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Wanted To Be Freaky: Bodybuilding Legend Dorian Yates Admits to Tweaking a Part of His Diet for His Physique - EssentiallySports
The lowdown on the low-carb keto diet; risks of sleep deprivation … – Butler County Times Gazette
By Dr. Michael Roizen
Q: I went on a keto diet for a month and lost about 10 pounds. Now I wonder if I should just stick with some version of it. Is it healthier than other ways of eating? Freddie B., Largo, Florida A: Its estimated that 12.9 million Americans follow the keto diet every year thats a carbohydrate- restricted diet that allows 70% fat, 20% protein and only 10% carbs. Folks vary that, adding more protein or even more carbs a couple days a week, but whatever the formula usually adopted for weight loss a new study shows that its risky to go to such extremes for a sustained stretch of time.
Researchers looked at the diet and health of more than 19,000 adults who participated in the National Health and Nutrition Examination Survey from 1999 to 2018. According to their study published in Current Developments in Nutrition, folks who restricted their carbohydrate intake to less than 45% of their total calories were 15% more likely to have diabetes, suffer a stroke or develop heart disease than folks who ate a balanced diet of carbs, fat and protein. And the more saturated and polyunsaturated fat in the diet, the greater the risk of those cardiometabolic conditions. (More monounsaturated fat, such as olive oil, and the fats in salmon, avocados, and walnuts dont increase risks.)
However, not just any carbs, fat, or protein will do if you want to maintain a healthy weight and protect your health.You want carbs to come from high-fiber, nutrient-packed, unprocessed grains, fruits and veggies, the fat to be from extra virgin olive oil, and the protein from fish like ocean trout and salmon, and from skinless chicken. To lose weight (a pound a week is optimal) or maintain a healthy weight, follow that nutritional plan and make sure not to overeat or to have food after around 7 p.m. Good sleep habits, regular physical activity and managing stress will also help you achieve those goals.
*** Q: My husband claims he doesnt need much sleep he usually gets about five hours a night but I think it makes him anxious and grumpy. What are the health risks? Gena R., Omaha, Kansas A: There are naturally short sleepers, who get by on less than six-anda- half hours a night, according to a study that found that they have a rare gene that promotes efficient, high-quality rest. These folks arent anxious and grumpy, because theyre not sleep deprived. But most folks who sleep less than seven to eight high-quality hours end up with emotional and physical disturbances that are linked to increased risk for cardiovascular disease, Alzheimers disease, and weight gain/obesity.
One new insight into the repercussions of sleep deprivation is a study in the European Heart Journal Open that looked at data on 650,000 participants. It showed that folks getting less than five hours of shut eye a night were 74% more likely to develop peripheral artery disease than folks getting seven to eight hours of rest. PAD is a condition in which arteries in the legs are obstructed and the risk of stroke and heart attack increases.
Another interesting repercussion of sleep deprivation: a blunted response to vaccination. A study in Current Biology found that people who sleep less than six hours a night end up generating significantly fewer antibodies in response to a vaccine than people who sleep seven-plus hours. In fact, their ability to mount a resistance to a disease is the same as the good sleepers antibody response two months after being vaccinated. This was seen mostly in folks ages 18 to 60 and in men.
Lack of sleep also interferes with the brains garbage removal, also known as the glymphatic system, which shuttles toxins out of the brain, helping prevent the changes that are associated with dementia and Alzheimers.
These potential problems are serious and should alert your husband to the importance of talking with his doctor about finding a solution to his sleep disturbances.
*** Health pioneer Michael Roizen, M.D., is chief wellness officer emeritus at the Cleveland Clinic and author of four No. 1 New York Times bestsellers. His next book is The Great Age Reboot: Cracking the Longevity Code for a Younger Tomorrow. Do you have a topic Dr. Mike should cover in a future column? If so, please email questions@Great-AgeReboot.com.
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The lowdown on the low-carb keto diet; risks of sleep deprivation ... - Butler County Times Gazette
‘One meal a day’ diet popular with celebrities could do more harm than goodhere’s why – Medical Xpress
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Coldplay frontman Chris Martin has recently shared he follows Omad. Credit: Brian Friedman/ Shutterstock
Celebrities have popularized all sorts of outlandish diet trends over the years. One of the latest trends among celebrities is the "one meal a day" diet (or "Omad").
Fans of Omad include Bruce Springsteen and Coldplay frontman Chris Martin. Many proponents of Omad claim it helps them better manage their weight and keep fit.
Omad is essentially a more extreme version of other types of fasting diets, such as intermittent fasting and time-restricted eating. The main difference is that instead of only fasting certain days or only eating your meals during a specific time window, people following Omad eat all their day's calories in one single, large meal.
But while supporters of Omad say that following the diet improves many aspects of health, we actually know very little about what effect eating just one meal a day has on the bodylet alone if it's safe.
Evidence supporting the use of Omad is limited. Very few studies have actually looked at Omad itselfand most of those that have were conducted in animals.
As such, most of the claims that Omad works are anecdotal. Or they are based on the assumption that if other forms of fasting can benefit health, then Omad will too.
Research into fasting diets is still emerging. Some evidence indicates that one form of intermittent fasting known as the "5:2 diet" (where a person eats normally five days a week, then 800 calories or less two days a week) may help people better manage their weight. However, it's no better than other diet approaches.
Research has also found that time-restricted eating (where you eat all your day's calories within a specific window of time) can help people better manage their weight. And it has other health benefits such as lowering blood pressure.
One review study also found that many different types of fasting (including intermittent fasting and fasting every other day) can improve several aspects of metabolism. These include improving blood sugar and cholesterol levels, reducing inflammation levels and helping people better regulate their appetite. This, in turn, may help reduce a person's risk of obesity, type 2 diabetes and cardiovascular disease.
One study so far has looked at the effect of Omad in humans. In this study, participants were given the same number of calories to eat each day for the study's duration. For half of the study, participants ate these calories in a single meal, before switching and eating their daily calories split into three meals per day.
Each meal pattern was only followed for an 11-day periodnot very long at all. The one meal was taken between 5pm and 7pm. Only 11 participants completed the study.
When participants ate just one meal per day, they saw a greater reduction in their body weight and fat mass. However, participants also had greater reductions in lean mass and bone density when eating just one meal a day. This could lead to reduced muscle function and greater risk of bone fractures if the diet was to be followed for a longer period.
Animal studies looking at the effects of Omad have shown conflicting results, with research showing mice who ate one large meal a day actually gained more weight compared to those who ate multiple meals.
While these results may indicate that Omad could have benefits for some aspects of health, there's still a lot we don't know about it. It will be important for future studies to investigate the effect of Omad in a larger number of participants and in other groups of people (as this study only included lean, young adults). It will also be important for studies to look at the effect of Omad over a longer period of time, and to conduct these trials in a real-life setting.
It will also be interesting to know whether the timing of the meal can further improve the results and if the nutritional profile of the meal makes a difference.
If someone is just having one meal a day then it's going to be quite difficult for them to meet all their nutritional requirements, especially for energy, protein, fiber and the key vitamins and minerals. Not getting enough of these important nutrients could lead to loss of muscle mass, risk of constipation and poor gut health.
Someone following Omad will need to ensure they get a good serving of protein and plenty of vegetables, nuts, seeds and some fruit and wholegrains during their single daily meal to meet these nutritional requirements. They will also need a good serving of dairy to make sure that they meet their calcium and iodine requirementsor a supplement or alternative if they're plant-based.
This is not a diet that we would recommend for children, anyone who is pregnant, hoping to become pregnant or breastfeeding and definitely not for a person who may be at risk of an eating disorder.
It's also important to note that while this diet might work for celebrities, they also have access to nutritionists, high-quality diets and supplements where needed. For most of us, this kind of diet could be unsustainableand potentially harmful in the long run.
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'One meal a day' diet popular with celebrities could do more harm than goodhere's why - Medical Xpress
Obesity, but not high-fat diet, is associated with bone loss that is … – Nature.com
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Obesity, but not high-fat diet, is associated with bone loss that is ... - Nature.com
Diets to improve cholesterol without medication – sidneydailynews.com
Dear Dietitian,
My cholesterol level has slowly been creeping up, and now its up to 255! My doctor says I must get it down, but I dont want to take medication yet. Do you think I could get my cholesterol down with diet and exercise?
Charles
Dear Charles,
Several healthy diets will help lower your cholesterol, and you are wise to try diet and exercise before medication. A healthy cholesterol level is 200 mg/dL or lower, so getting yours down can probably be achieved through diet and exercise.
The Ornish diet was created by Dean Ornish, MD, a clinical professor of medicine at the University of California. This diet is plant-based and emphasizes fruits, vegetables and whole grains. It is very low in fat, with only 10 percent of calories coming from fat. Only 12 mg of cholesterol is allowed each day, and plant oils are prohibited. Exercise and stress management are also a part of the program.
In a study of 48 participants, those who followed the Ornish plan for one year had a 37 percent reduction in LDL cholesterol. HDL remained the same. More important, there was a reversal in heart disease in these participants. A drawback of the Ornish diet is that it is strict and difficult for some to follow. Critics also point out that the study size was small and more extensive research is needed (1).
Another diet that has gained global recognition is the Mediterranean diet. It consists of fruits, vegetables, whole grains, nuts, legumes, fatty fish and poultry. The oils permitted are canola and olive oil, and moderate amounts of dairy and eggs are included. Red meat is allowed occasionally and alcohol, particularly red wine, is enjoyed with meals.
In the Lyons study, those who followed the Mediterranean diet only produced a 6 percent reduction in LDL levels. However, the same group saw a 70 percent decrease in death from any cause and 70 percent fewer non-fatal heart attacks after four years (2).
If you like doing things your way, you can lower your cholesterol with your own diet and exercise plan. In a 15-week study of 350 overweight volunteers, those who lost 5-10 percent of total body weight saw significant decreases in total cholesterol and LDL levels. The study participants were put on a calorie-restricted diet and expected to exercise 150 minutes weekly. This study was limited by its short duration (3).
If lowering cholesterol is a goal, these three very different diet plans will produce results. Choose the plan that works for you.
Until next time, be healthy!
Dear Dietitian
References
1. Rosenthal R. Effectiveness of altering serum cholesterol levels without drugs. Proc (Bayl Univ Med Cent) 2000 Oct; 13(4): 351-355. doi: 10.1080/08998280.2000.11927704
2. de Lorgeril M, Salen P, Martin JL, Monjaud I, Delaye J, Mamelle N. Mediterranean diet, traditional risk factors, and the rate of cardiovascular complications after myocardial infarction: final report of the Lyon Diet Heart Study. Circulation. 1999;99:779785.
3. Brown J, Buscemi J, Milson V, Malcolm R, ONeil P. Effects on cardiovascular risk factors of weight losses limited to 5-10%. Transl Behav Med. 2016 Sep; 6(3): 339-346.
doi: 10.1007/s13142-015-0353-9
Leanne McCrate is an award-winning dietitian based in Missouri. Her mission is to educate the public on sound, evidence-based nutrition. Do you have a nutrition question? Email her at [emailprotected]
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Diets to improve cholesterol without medication - sidneydailynews.com
1000-Lb. Sisters star Tammy Slaton caught breaking strict diet with McDonalds lunch in new photos after w… – The US Sun
1000-LB. SISTERS star Tammy Slaton has been caught breaking her strict diet by grabbing a fast food meal, in new photos obtained exclusively by The U.S. Sun.
Tammy, 36, and her sister Amy, 35, had an Easter hankering for some deep-fried food and made a trip to a local Kentucky McDonald's on Sunday, April 9.
Tammy was spotted sitting in the front seat of their car clutching a McDonald's takeout bag while Amy sat in the back.
After pulling through the fast food joint, the sisters made their way back home and it appeared that one stop was not enough to tide over their craving.
Amy was also spotted holding a Wendy's drink as she exited the car and walked up their driveway.
Earlier on the Easter holiday, Tammy and Amy also went on a long shopping spree to Walmart.
While at the shopping center, Tammy was caught vaping while riding an electric scooter holding her oxygen tank.
The insider shared that Tammy and Amy were at the Walmart for nearly two hours.
The sisters emerged with carts loaded to the brim with Twinkies, chips, toys, and more, according to the source.
Tammy was spotted taking a drag from an electric vape as she coasted through the parking lot to her car with bags full of junk food.
The U.S. Sun previously reported that a source claimed Tammyquit smokingover her nearly 14-month stay at anOhio weight loss rehab clinic.
At the time ofTammy's release, the source shared she had abstained from drinking alcohol, smoking, and vaping for nine months.
Previously on 1000-Lb. Sisters, Tammy admitted shedowned eight bottles of boozea week, leaving doctors fearing for her life.
She also openlyate pizza, vaped, and asked friends for shotsof liquor in clips from the show.
In the season three finale, Tammystopped breathingfor a time after a party bender.
The U.S. Sun previously revealedTammy weighed just over 400 pounds at the end of her 14-month rehab stay - and is nearly half her former size.
After once tipping the scales at 700 pounds, Tammy lost a shocking 300 pounds in her battle against obesity.
As show fans know, Tammyadmitted herself to rehabback in 2021 for a second time to get her life back on track.
"When Tammy was first in rehab, she needed to reach her goal weight of 550 pounds from around 700 pounds in order to beapproved for her bariatric surgery," a friend told The U.S. Sun exclusively.
Bariatric surgery is an operation on the digestive system to help a patient loseweight quickly in extreme situations.
On a season four episode of1000-Lb. Sistersairing on TLC, shereached her goal weight.
As The U.S. Sun first reported, Tammysuccessfully underwent the life-changing procedure in the summer of 2022- and the friend claimed she has since dropped another 150 pounds since then.
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1000-Lb. Sisters star Tammy Slaton caught breaking strict diet with McDonalds lunch in new photos after w... - The US Sun
Diet Lite’s ‘Debora’ proves a hurtin’ heart is best listened to loud – Radio Milwaukee
Every week, Milwaukee Music Premiere connects the citys artists with our listening audience. If youre an artist with a track youd like us to debut exclusively on Radio Milwaukee, head over to ourMusic Submission page to learn how.
Listen to enough music, and it starts falling into three camps:
When I first played Diet Lites single Debora, which were premiering here, all I heard was a volume-cranker. A decibel-doubler. A colleague forced to wave their arms frantically to get your attention because your earbuds are in and well past the recommended level type of song.
Is it the bouncy alt-country-ish guitar? The joyful organ courtesy of Sleepy Gauchos Andy Goitia? The arrhythmic vocal pattern that would set Shakespeares teeth on edge? Yes to all three.
The tracks sound flies in the face of the lyrical content, which the band summarized as hard-fought love lost and the bitter craving for something you know probably aint all that good for you, in the vein of Dylans Most Likely You Go Your Way (And Ill Go Mine).
I see you walkin down the streetYou know Debora you should be standing here with meSlipping a dozen truths into that one big lieSure dont make no difference when were riding on your time
Im walking behind yaLeaving the door open tooYour styles dime a dozen, but its working for youYoure looking pretty smart and pretty meanDebora I crave your sympathy
While its possible the subject of the songs ire is a real person, the name has strictly cinematic roots. It was inspired by the Lily James character from 2017s Baby Driver, who lamented the near-total lack of Debora tunes in the world. As the band noted, We wanted to give her one more song.
This particular Debora is part of Diet Lites soon-to-be-released album Into the Pudding, which youll be able to hear in full this Friday, April 14. You also have two opportunities to see the band live this week: at our Walkers Point studios for Thursdays State of Sound and Saturday night in the Back Room for their album-release show with special guests Social Cig and Kangaroo Court.
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Diet Lite's 'Debora' proves a hurtin' heart is best listened to loud - Radio Milwaukee
CJ McCollum Calls Out Zion Williamson Over Diet And Availability – Basketball Forever
CJ McCollum was very patient with Zion Williamson when they first became teammates last season, but now it appears even hes had enough of Williamsons never-ending injuries.
Availability is important, man, McCollum said after the Zion-less Pelicans were eliminated by the Thunder in Wednesday nights play-in game.
Weve got to be available. Weve got to do what we need to do off the court in terms of preparation, in terms of getting treatment, in terms of getting the right sleep, the right type of hydration, having the right type of diet.
READ MORE: How to Predict the NBA Champion Every Year With Insane Accuracy
McCollum never mentioned Williamson by name, but theres only way one to interpret comments about availability and diet when theyre coming from one of Zions teammates.
The former Duke star has also been widely criticised for saying he is physically fine, and yet still refusing to play until he feels like Zion.
He has also been called out for throwing down windmill dunks before yesterdays crucial game, and then sitting out, which is also something hes done before.
Williamson has now missed 194 of a possible 308 NBA games.
READ MORE: Zion Williamson Says He Feels Physically Fine, But Still Wont Be Playing in Elimination Game
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CJ McCollum Calls Out Zion Williamson Over Diet And Availability - Basketball Forever
Cognitive Decline: Scientists have known for years that diets high in … – Milwaukee Independent
Many factors that contribute to cognitive decline are out of a persons control, such as genetics and socioeconomic factors. But ongoing research increasingly indicates that a poor diet is a risk factor for memory impairments during normal aging and increases the risk of developing Alzheimers disease.
But when evaluating how some diets may erode brain health as we age, research on the effects of consuming minimally processed versus ultra-processed foods has been scant that is, until now.
Two recent large-scale studies suggest that eating ultra-processed foods may exacerbate age-related cognitive decline and increase the risk of developing dementia. In contrast, another recent study reported that ultra-processed food consumption was not associated with worse cognition in people over 60.
Although more research is needed, as a neuroscientist who researches how diet can influence cognition later in life, I find that these early studies add a new layer for considering how fundamental nutrition is to brain health.
Lots of ingredients, minimal nutrition
Ultra-processed foods tend to be lower in nutrients and fiber and higher in sugar, fat and salt compared to unprocessed or minimally processed foods. Some examples of ultra-processed foods include soda, packaged cookies, chips, frozen meals, flavored nuts, flavored yogurt, distilled alcoholic beverages and fast foods. Even packaged breads, including those high in nutritious whole grains, qualify as ultra-processed in many cases because of the additives and preservatives they contain.
Another way to look at it: You are not likely to find the ingredients that make up most of these foods in your home kitchen.
But do not confuse ultra-processed with processed foods, which still retain most of their natural characteristics, although theyve undergone some form of processing like canned vegetables, dried pasta or frozen fruit.
Parsing the research
In a December 2022 study, researchers compared the rate of cognitive decline over approximately eight years between groups of people that consumed different amounts of ultra-processed foods.
At the beginning of the study, over 10,000 participants living in Brazil reported their dietary habits from the previous 12 months. Then, for the ensuing years, the researchers evaluated the cognitive performance of the participants with standard tests of memory and executive function.
Those who ate a diet containing more ultra-processed foods at the start of the study showed slightly more cognitive decline compared with those that ate little to no ultra-processed foods. This was a relatively modest difference in the rate of cognitive decline between experimental groups. It is not yet clear if the small difference in cognitive decline associated with higher consumption of ultra-processed foods will have a meaningful effect at the level of an individual person.
The second study, with about 72,000 participants in the U.K., measured the association between eating ultra-processed foods and dementia. For the group eating the highest amounts of ultra-processed foods, approximately 1 out of 120 people were diagnosed with dementia over a 10-year period. For the group that consumed little to no ultra-processed foods, this number was 1 out of 170.
Research examining the relationship between health and ultra-processed foods uses the NOVA classification, which is a categorization system based on the type and extent of industrial food processing. Some nutritionists have criticized the NOVA classification for not having clear definitions of food processing, which could lead to misclassification. They also argue that the potential health risks from consuming ultra-processed foods could be explained by low levels of fiber and nutrients and high levels of fat, sugar and salt in the diet rather than the amount of processing.
Many ultra-processed foods are high in additives, preservatives or coloring agents, while also having other features of an unhealthy diet, such as being low in fiber and nutrients. Thus, it is unclear if eating food that has undergone more processing has an additional negative impact on health beyond low diet quality.
For example, you could eat a burger and fries from a fast food chain, which would be high in fat, sugar and salt as well as being ultra-processed. You could make that same meal at home, which could also be high in fat, sugar and salt but would not be ultra-processed. More research is needed to determine whether one is worse than the other.
Brain-healthy diets
Even when the processes that lead to dementia are not occurring, the aging brain undergoes biochemical and structural changes that are associated with worsening cognition.
But for adults over the age of 55, a healthier diet could increase the likelihood of maintaining better brain function. In particular, the Mediterranean diet and ketogenic diet are associated with better cognition in advanced age.
The Mediterranean diet emphasizes the consumption of plant-based foods and healthy fats, like olive oil, seeds and nuts. The ketogenic diet is high in fat and low in carbohydrates, with the primary fiber source being from vegetables. Both diets minimize or eliminate the consumption of sugar.
Our research and the work of others show that both diets can reverse some of these changes and improve cognitive function possibly by reducing harmful inflammation.
Although inflammation is a normal immune response to injury or infection, chronic inflammation can be detrimental to the brain. Studies have shown that excess sugar and fat can contribute to chronic inflammation, and ultra-processed foods might also exacerbate harmful inflammation.
Another way that diet and ultra-processed foods may influence brain health is through the gut-brain axis, which is the communication that occurs between the brain and the gut microbiome, or the community of microorganisms that live in the digestive tract.
Not only does the gut microbiome help with digestion, but it also influences the immune system, while producing hormones and neurotransmitters that are critical for brain function.
Studies have shown that the ketogenic and Mediterranean diets change the composition of microorganisms in the gut in ways that benefit the person. Ultra-processed food consumption is also associated with alterations in the type and abundance of gut microorganisms that have more harmful effects.
The uncertainties
Disentangling the specific effects of individual foods on the human body is difficult, in part because maintaining strict control over peoples diets to study them over long periods of time is problematic. Moreover, randomized controlled trials, the most reliable type of study for establishing causality, are expensive to carry out.
So far, most nutritional studies, including these two, have only shown correlations between ultra-processed food consumption and health. But they cannot rule out other lifestyle factors such as exercise, education, socioeconomic status, social connections, stress and many more variables that may influence cognitive function.
This is where lab-based studies using animals are incredibly useful. Rats show cognitive decline in old age that parallels humans. Its easy to control rodent diets and activity levels in a laboratory. And rats go from middle to old age within months, which shortens study times.
Lab-based studies in animals will make it possible to determine if ultra-processed foods are playing a key role in the development of cognitive impairments and dementia in people. As the worlds population ages and the number of older adults with dementia increases, this knowledge cannot come soon enough.
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Cognitive Decline: Scientists have known for years that diets high in ... - Milwaukee Independent