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Diets in study

Heres a look at the three types of diets used in the new study:

A low-fat diet, which is about 20 percent of calories from fat, 60 percent from carbohydrates, 20 percent from protein. It emphasizes whole-grain products and fruits and vegetables and cuts way back on oils, nuts, fatty meats and other high-fat foods.

A low-carb diet, similar to the Atkins diet, with only 10 percent of calories from carbohydrates, 30 percent from protein, 60 percent from fat. This diet emphasizes beef, fish, chicken, eggs, cheese, some vegetables and fruits while slashing the consumption of breads, pasta, potatoes, rice, cakes, cookies and starchy vegetables.

A low-glycemic index diet, similar to a Mediterranean diet, is made up of vegetables, fruit, beans, healthy fats (olive oil, nuts) and mostly healthy grains (old-fashioned oats, brown rice). It gets about 40 percent of daily calories from carbohydrates, 40 percent from fat and 20 percent from protein.

Source: Journal of the American Medical Association

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Low-carb diet burns the most calories in small study

HOUSTON, June 26 (UPI) -- Older adults, who are obese can reduce their metabolic syndrome risk by not only losing weight, but by adding exercise as well, U.S. researchers say.

Study author Dr. Matthew Bouchonville of the University of Mexico Health Sciences Center and the New Mexico Veterans Affairs Health Care System in Albuquerque said metabolic syndrome is a cluster of metabolic problems that increase the risk of type 2 diabetes and heart disease: Abdominal obesity as shown by a large waist circumference, low "good" cholesterol and high triglycerides, high blood pressure and high blood glucose blood sugar.

The researchers investigated the independent and combined effects of diet-induced weight loss and regular exercise in a one-year randomized, controlled clinical trial. They randomly assigned 107 obese adults ages 65 and older to one of four groups: Weight management using a calorie-restricted diet, exercise three times a week for 90 minutes each without dieting, combined dieting with exercise and a control group with no diet or exercise.

Ninety-three participants completed the study. The insulin sensitivity index did not improve in the exercise-only group or the control group.

However, the study found the insulin sensitivity index improved on average by 40 percent in the diet group and by 70 percent in the combined diet-exercise group, Bouchonville reported to The Endocrine Society's 94th annual meeting in Houston.

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Exercise and diet cuts metabolic syndrome risk

Losing weight is hard, but for many people, keeping off the pounds over the longer term is even more difficult.

Now, new research has attempted to shed some light on why: It found that certain popular diets are better than others at boosting the rate at which the body burns calories. And that, the researchers argued, could have implications for how successful people are at keeping extra pounds at bay.

"The results indicate that from a metabolic perspective, all calories are not alike," paper co-author Dr. David Ludwig, director of the New Balance Foundation Obesity Prevention Center at the Boston Children's Hospital told The Huffington Post.

For the new study, published on Tuesday in the Journal of the American Medical Association, researchers recruited 21 overweight and obese young adults who had already shed 10 percent to 15 percent of their body weight. The researchers randomly placed participants for four weeks at a time on a succession of three popular eating plans: a low-fat diet, a low-carb diet and a low-glycemic index diet. With a low-glycemic diet, someone eats only certain types of carbohydrates to help regulate blood sugar levels.

Prior research has suggested that weight loss can decrease a person's rate for burning calories. According to the new study's authors, this might help explain why only 1 in 6 overweight or obese adults who have lost 10 percent of their body weight can maintain that reduction for a year.

For this study, the low-fat plan triggered the biggest decline in an overall calorie-burning rate, meaning less weight loss. On that plan, participants received 60 percent of their daily calories from carbs, 20 percent from fat and 20 percent from protein.

"The research subjects burned about 350 calories per day more on the low-carb diet than on the low-fat, even though they were consuming the same number of calories," Ludwig explained. "That's roughly equal to an hour of moderate physical activity without lifting a finger. On the low-glycemic [plan], they burned about 150 calories per day more than the low-fat diet."

The study also showed negative effects associated with the low-carb diet, which limited participants to receiving 10 percent of their daily calories from carbs.

The low-carb diet increased levels of the hormone cortisol, which can lead to insulin resistance and heart disease. It also boosted the levels of certain proteins that have been linked to heart disease over the long term.

Ludwig cautioned that any diet plan that drastically reduces a major class of nutrients like fat or carbs might be difficult to stick to because it is so restrictive, thereby undermining long-term maintenance of a lower weight.

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Diet Type Changes Quantity Of Calories Burned: Study

ScienceDaily (June 25, 2012) Obese older adults can reduce their chance of developing the metabolic syndrome by losing weight through dieting alone, but adding exercise to a weight loss program has even more benefit, a new study finds. The results, presented June 25 at The Endocrine Society's 94th Annual Meeting in Houston, show that a combination of diet-induced weight loss and frequent exercise almost doubled the improvement in insulin sensitivity compared with dieting alone.

The metabolic syndrome is a cluster of metabolic problems that raise the risk of Type 2 diabetes and heart disease: abdominal obesity as shown by a large waist circumference, disturbed lipids (low HDL or "good" cholesterol and high triglycerides), high blood pressure and high blood glucose (blood sugar). Although it is known that weight loss can reduce these risk factors, the most appropriate lifestyle treatment for obesity in older adults has been controversial, said the presenting author, Matthew Bouchonville, MD.

"It was not clear from prior studies in obese elderly adults whether the beneficial effects of diet and exercise are distinct from each other or have additive effects," said Bouchonville, an assistant professor at the University of Mexico Health Sciences Center and the New Mexico Veterans Affairs (VA) Health Care System in Albuquerque.

The researchers investigated the independent and combined effects of diet-induced weight loss and regular exercise in a one-year randomized controlled clinical trial, funded by the National Institute on Aging. They randomly assigned 107 obese adults ages 65 and older to one of four groups: weight management using a calorie-restricted diet, exercise (three times a week for 90 minutes each) without dieting, combined dieting with exercise, and controls (no diet or exercise).

The primary outcome analyzed was the degree of change in the insulin sensitivity index. Insulin sensitivity is the body's ability to successfully clear glucose from the bloodstream and is often impaired in obese people. This index was measured from the oral glucose tolerance test, a blood test for diabetes after the patient drinks a sugary drink.

Other measures obtained included those for the components of the metabolic syndrome as well as C-reactive protein, a measure of inflammation. Research has linked chronic inflammation to diabetes and heart disease.

Ninety-three participants completed the study. In the intention-to-treat analysis of all 107 subjects, the insulin sensitivity index did not improve in the exercise-alone group or the controls. This index did improve on average by 40 percent in the diet group and by 70 percent in the combined diet-exercise group after controlling for relevant covariates, Bouchonville reported.

"This suggests a distinct complementary effect of exercise on diet-induced weight loss," he said.

Weight loss by diet alone also led to improvements in blood pressure and C-reactive protein. Without weight loss, exercise did not result in improvement in these risk factors, Bouchonville said. Other measures that did not improve in the exercise-only group or the controls but did improve in the other two groups included glucose and insulin response to the oral glucose tolerance test (levels of insulin and glucose trended over several time points after the sugar intake), waist circumference, abdominal visceral (deep belly) fat, triglycerides and adiponectin. Adiponectin is a protein produced in fat cells that improves insulin sensitivity.

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Diet, exercise or both? What obese older adults need to do to reduce cardiometabolic risk

Public release date: 23-Jun-2012 [ | E-mail | Share ]

Contact: Aaron Lohr alohr@endo-society.org 240-482-1380 The Endocrine Society

Obese older adults can reduce their chance of developing the metabolic syndrome by losing weight through dieting alone, but adding exercise to a weight loss program has even more benefit, a new study finds. The results, to be presented Saturday at The Endocrine Society's 94th Annual Meeting in Houston, show that a combination of diet-induced weight loss and frequent exercise almost doubled the improvement in insulin sensitivity compared with dieting alone.

The metabolic syndrome is a cluster of metabolic problems that raise the risk of Type 2 diabetes and heart disease: abdominal obesity as shown by a large waist circumference, disturbed lipids (low HDL or "good" cholesterol and high triglycerides), high blood pressure and high blood glucose (blood sugar). Although it is known that weight loss can reduce these risk factors, the most appropriate lifestyle treatment for obesity in older adults has been controversial, said the presenting author, Matthew Bouchonville, MD.

"It was not clear from prior studies in obese elderly adults whether the beneficial effects of diet and exercise are distinct from each other or have additive effects," said Bouchonville, an assistant professor at the University of Mexico Health Sciences Center and the New Mexico Veterans Affairs (VA) Health Care System in Albuquerque.

The researchers investigated the independent and combined effects of diet-induced weight loss and regular exercise in a one-year randomized controlled clinical trial, funded by the National Institute on Aging. They randomly assigned 107 obese adults ages 65 and older to one of four groups: weight management using a calorie-restricted diet, exercise (three times a week for 90 minutes each) without dieting, combined dieting with exercise, and controls (no diet or exercise).

The primary outcome analyzed was the degree of change in the insulin sensitivity index. Insulin sensitivity is the body's ability to successfully clear glucose from the bloodstream and is often impaired in obese people. This index was measured from the oral glucose tolerance test, a blood test for diabetes after the patient drinks a sugary drink.

Other measures obtained included those for the components of the metabolic syndrome as well as C-reactive protein, a measure of inflammation. Research has linked chronic inflammation to diabetes and heart disease.

Ninety-three participants completed the study. In the intention-to-treat analysis of all 107 subjects, the insulin sensitivity index did not improve in the exercise-alone group or the controls. This index did improve on average by 40 percent in the diet group and by 70 percent in the combined diet-exercise group after controlling for relevant covariates, Bouchonville reported.

"This suggests a distinct complementary effect of exercise on diet-induced weight loss," he said.

More:
Exercise with diet improves insulin sensitivity much more than diet alone

Diet high in fat and calories can hasten the development of pancreatic cancer in humans.

Our results showed that in mice, a diet high in fat and calories led to obesity and metabolic disturbances such as insulin resistance that are seen in obese humans. It also greatly enhanced pancreatic inflammation and pancreatic cancer development, said Guido Eibl, M.D., an associate professor in the department of surgery at the David Geffen School of Medicine at the University of California, Los Angeles and a researcher at UCLAs Jonsson Comprehensive Cancer Center.

Human epidemiological studies have linked high fat intake and obesity to an increased risk of pancreatic cancer, but the mechanism driving this association has not been understood.

To understand the link, Eibl and his colleagues first tested the hypothesis that diet is linked to cancer. They fed a corn oil-based diet that had a high content of fat and calories to mice with a genetic mutation that caused them to develop pancreatic precancer. The same gene, KRAS, is mutated in the majority of human pancreatic cancers.

The results showed that 90 percent of the mice fed the special diet became obese, and all of these mice developed insulin resistance and inflammation in the pancreas. Both of these conditions can stimulate the growth of precancerous cells and cancer. These mice also developed significantly more advanced precancerous lesions than did mice fed a normal diet.

This suggests that the high-fat, high-calorie diet accelerated pancreatic cancer development, said Eibl. A KRAS mutation in the pancreas might not be sufficient to cause an individual to develop pancreatic cancer. It likely needs something in addition a secondary hit. Our study showed that a high-fat, high-calorie diet could provide an environmental secondary hit and trigger cancer development.

The researchers are now defining the role that inflammation produced by obesity plays in development of the cancer, and if agents such as antidiabetic drugs or fish oil can halt this disease process.

Continue reading here:
High-fat, High-calorie Diet Speeds Pancreatic Cancer Development

Of course, you need a healthy balance of both the right diet and adequate exercise to drop the pounds. But does one outweigh the other? Find out.

This has been an ongoing controversy for many years. For optimal fat loss, should you focus more on your diet or your exercise routine? All in all, you do need a balance of both. You must follow a diet and exercise in order to get the absolute best result. But when it comes down to which contributes more, you may be surprised as to what the answer is.

Simply put, exercise is the easy part...at least for most people. A majority of the population finds it much easier to get to the gym and break a sweat than to put down that piece of bread or stop themselves from another serving of dinner.

Exercise is always more favourable than dieting. Wouldn't it be nice if you could just exercise and eat whatever you want? Well, that's sure as heck not the case! Dieting contributes to about 90 per cent of fat loss, leaving only 10 per cent to exercise. This may come as a big surprise to you, but it is true. How come? Read more to find out why dieting has an advantage over exercise when it comes to weightloss.

You can't out-exercise a bad diet

This is such a popular phrase in the fitness world and it is probably one of the truest statements out there. Many people believe that if they work their butt off in the gym, that they can go home and eat what they want.

The main idea behind exercising is to burn calories. The unhealthy foods that you reward yourself with afterward are chockfull of unnecessary calories. Take this for example: You stop by the McDonald's drive-thru with some friends and splurge on a Big Mac. In the back of your head you're thinking 'I'll just go to the gym later'. Well, hold that thought and put the Big Mac down! In order to burn off a Big Mac, you would need to bust your butt in the gym for at least 90 minutes of full-on intense cardio, just to create a small calorie deficit.

This goes for all foods, not only Big Macs. In order to lose weight, you must burn more calories than you consume. If you have bad dietary habits, chances are that's not happening and that's the reason why you aren't losing weight. All the exercise in the world can't help a bad diet.

Illustration: Uttam Ghosh

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Diet or exercise: Which is more important for weightloss?

Public release date: 20-Jun-2012 [ | E-mail | Share ]

Contact: Alissa J. Cruz media@gastro.org 301-272-1603 American Gastroenterological Association

A six-food elimination diet significantly improves symptoms in adult patients with eosinophilic esophagitis (EoE), according to a new study in Gastroenterology, the official journal of the American Gastroenterological Association. In EoE, eosinophils and other inflammatory cells cause inflammation of the esophagus in response to an allergic stimulus. Previously thought to be a rare disease, EoE has become one of the most common causes for dysphagia (difficulty swallowing), heartburn and the sensation of "food stuck in the throat" in adults. Similar to children, this study has now shown that food allergens have a causative role in the majority of adults with EoE.

An elimination diet that identifies specic food triggers is an effective therapeutic alternative to corticosteroids for adults with EoE. Furthermore, the results of a reintroduction process in which these trigger foods are added back into a patient's diet support the fact that food antigens are driving this response; this provides new insight into the nature of the inammatory response in adult EoE.

"By first eliminating, then systematically reintroducing foods in our adult patients, we were able to identify the specic food triggers that caused their symptoms, such as heartburn, chest pain and difficulty swallowing, or the sensation of food being stuck in their throat," said Nirmala Gonsalves, MD, of Northwestern University and the lead author of this study. "Given the poor sensitivity of skin prick testing and lack of history of food allergy or intolerance, the six-food elimination diet with reintroduction is the only reliable method to date to identify food triggers in adult eosinophilic esophagitis and should allow us to better tailor diet to individual patients for long-term management." View a video abstract in which Dr. Gonsalves discusses her study findings.

A diet that eliminates all of the six most commonly allergenic foods (milk, soy, egg, wheat, peanuts/tree nuts and shellfish/fish) significantly improves symptoms and reduces esophageal tissue damage associated with EoE in adults. In fact, 78 percent of patients achieved greater than a 50 percent reduction in peak eosinophil (white blood cell) counts in their esophagus; dysphagia symptom scores improved signicantly after the elimination diet. Once trigger foods were reintroduced, all patients had recurrence of their symptoms within five days. These results suggest that EoE is likely the same disease in children and adults.

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About the AGA Institute

The American Gastroenterological Association is the trusted voice of the GI community. Founded in 1897, the AGA has grown to include 17,000 members from around the globe who are involved in all aspects of the science, practice and advancement of gastroenterology. The AGA Institute administers the practice, research and educational programs of the organization. http://www.gastro.org.

About Gastroenterology

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Food elimination diet identifies causes of difficulty swallowing and swelling of the throat

Public release date: 20-Jun-2012 [ | E-mail | Share ]

Contact: Jeremy Moore jeremy.moore@aacr.org 215-446-7109 American Association for Cancer Research

LAKE TAHOE, Nev. Study results presented at the American Association for Cancer Research's Pancreatic Cancer: Progress and Challenges conference, held here June 18-21, strongly suggest that a diet high in fat and calories can hasten the development of pancreatic cancer in humans.

"Our results showed that in mice, a diet high in fat and calories led to obesity and metabolic disturbances such as insulin resistance that are seen in obese humans. It also greatly enhanced pancreatic inflammation and pancreatic cancer development," said Guido Eibl, M.D., an associate professor in the department of surgery at the David Geffen School of Medicine at the University of California, Los Angeles and a researcher at UCLA's Jonsson Comprehensive Cancer Center.

Human epidemiological studies have linked high fat intake and obesity to an increased risk of pancreatic cancer, but the mechanism driving this association has not been understood.

To understand the link, Eibl and his colleagues first tested the hypothesis that diet is linked to cancer. They fed a corn oil-based diet that had a high content of fat and calories to mice with a genetic mutation that caused them to develop pancreatic precancer. The same gene, KRAS, is mutated in the majority of human pancreatic cancers.

The results showed that 90 percent of the mice fed the special diet became obese, and all of these mice developed insulin resistance and inflammation in the pancreas. Both of these conditions can stimulate the growth of precancerous cells and cancer. These mice also developed significantly more advanced precancerous lesions than did mice fed a normal diet.

"This suggests that the high-fat, high-calorie diet accelerated pancreatic cancer development," said Eibl. "A KRAS mutation in the pancreas might not be sufficient to cause an individual to develop pancreatic cancer. It likely needs something in addition a secondary hit. Our study showed that a high-fat, high-calorie diet could provide an environmental secondary hit and trigger cancer development."

The researchers are now defining the role that inflammation produced by obesity plays in development of the cancer, and if agents such as antidiabetic drugs or fish oil can halt this disease process.

###

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High-fat/calorie diet accelerates development of pancreatic cancer

Johnny Depp Loss 2012 Johnny Depp Diet Programs - Isn't amazing how all of the celebrities you see have a celebrity diet plan for weight loss to maintain their weight. Some of them are shapely and healthy looking, and look good on camera. Others look like they haven't eaten in weeks, like they just got back from the famine in Ethiopia for a few weeks. Like they had been starving themselves to lose weight, and that is probably what they have been doing. You see it in all the tabloids, this person lost 100 pounds again, this one gained 100 pounds, and then lost 150 pounds. Some are not as dramatic; this one lost 40 pounds and is a television spokesperson, because the previous celebrity diet spokesperson gained the weight back. The fact is they may be starving themselves to lose weight, fasting like they are going through a famine.

"Click Here to Watch Weird VIDEO About The 7 Foods that KILL Abdominal Fat!"

Celebrities make dieting look so easy, don't they? One month they're on the cover of US Weekly for gaining too much weight and the next they're headlining the "sexiest beach bods" story. It is true that seriously overweight people can lose large amounts of fat in a quick amount of time, because of the large fat content in their cells. But those that are only a few pounds overweight, losing 40 pounds in a month, is not only starvation, it is malnutrition and can have serious side effects. Our body weight can fluctuate day to day and the best diets take the weight off gradually, the way it came on. If you lose a lot of weight in a short time, staying the same size will be impossible unless you follow a maintenance program for life. Good, sensible dieting means skill and will power combined. A lot of these celebrity diets or Hollywood diets are very bad for the body and the celebrities are thinking of the camera rather than their long term health. Researches indicate that individuals who indulge in a weight loss program by taking prepared meals end up losing an additional 31% weight as against those who cook their own meals. With help, losing weight is made easier and at times much faster as against doing it on your own.Diet delivery is gaining popularity in a big way as it is fairly affordable by even the common man, roughly around $20 a day with an increasing variety to choose from. A few of which include: Zone-compliant meal, low carbs plan, veggie meals, and gourmet too.

"Click Here to Watch Weird VIDEO About The 7 Foods that KILL Abdominal Fat!"

With the rapidly increasing epidemic of obesity and increasing BMI levels, there is an array of products and diet plan to aid in combating obesity. Celebrity slim diet, the basic idea is to educate people and not to depict food as an enemy. Like a lot of famous diets in Hollywood, if your body thinks you are starving, it is going to hold on to every calorie you take in to keep you from starving to death instead of burning them for energy. When you follow a properly balanced weight loss diet, your metabolism will hardly notice the decrease in calories and continue to burn fat it doesn't need to store. This is a more long-term weight loss strategy.

Celebrities do not have secrets about dieting. They are normal people like the rest of us but, unlike most of us, they have people working for them such as diet advisors and personal trainers. Celebrity diets involve a level of commitment and dedication which we struggle with. The best celebrity diets involve eating sensibly and limiting our calorie intake. Having these factors in mind will allow you to have safe and easy weight loss that will provide you with short term and long term consistent results.

"Click Here to Download The JohnnyDepp Diet Programs - Get a Great Body Like JohnnyDepp in Days!"

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Johnny Depp Loss 2012 Johnny Depp Diet Programs

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