Really, it shouldn’t be so difficult to figure out which eating regimen will set fire to fat while maintaining muscle. Fortunately, the International Society of Sports Nutrition just released its position paper, which combs through all existing scientific studies to report how every diet will affect your body composition. Here, we’ve pulled five of the most six-pack-friendly diets and streamlined how they’re great, as well as why they might be right (or wrong) for you—according to the hard science.
The Mediterranean diet has been shown to reduce the risk of heart disease. It’s also associated with a reduced incidence of cancer, Parkinson’s and Alzheimer’s diseases. This diet emphasizes eating primarily plant-based foods including fruits, vegetables, whole grains, legumes, nuts, olive and canola oil, fish and poultry. It also encourages getting plenty of exercise, enjoying red wine in moderation and focusing on meals with family and friends.
Nuts. It’s very easy to eat until the nuts are gone, regardless of how full you are. A tip: According to science, salted nuts are harder to stop eating than unsalted nuts. Salted nuts tempt you to more overeating. Good to know. Another tip: Avoid bringing the entire bag to the couch, preferably choose a small bowl instead. I often eat all the nuts in front of me, whether I’m hungry or not.
Grains and beans are some of the most carbohydrate-dense foods out there, so breads, rice, and beans will spike your blood sugar causing crashes and cravings later on. There’s more to the issue with grains and beans, though. They contain some proteins and compounds that humans just don’t handle well. Here’s a breakdown of some of the issues with grains and beans.
Whole grains: They contain more vitamins, minerals, and protein than white-flour products and have a stabilizing influence on blood-sugar levels. Experiment with nutrient-dense, nutty-tasting exotic whole grains such as barley, amaranth, quinoa, and faro. But watch your intake: One cup of cereal equals two servings, as do two slices of pumpernickel bread.
“Tremendous Results”….guess that’s why the diabetes nationwide gets worse every year, because of the stellar advice your kind is giving out. I’ve been on the virta clinic for two months and already went off insulin, Janumet and Jardiance, which I’ve been on for 10 years, with blood sugars between 80 and 150. The advice you give makes people get sick slower. The ketogenic approach deals with the real issue, carbohydrate intolerance. If you are lactose intolerant you stop ingesting lactose. Type two diabetes is simply carbohydrate intolerance. Stop eating the carbs and the symptoms go away. I think you meet to cite some of the other research out there I’ve read in other books and the work the Virta Clinic has done. In my opinion you’ve cherry picked data to suit your preconceived beliefs.

If you want to give the DASH diet a try, you're in luck: It works for everyone, according to Gorin. And since it involves eating the healthiest foods around and limiting the bad stuff, there aren't any cons. Plus, sticking to it won't just help you lose weight, it will also help keep your "heart health, blood pressure levels, and cholesterol levels" in check.


I have been a type 1 diabetic for most of my life. I live a very active lifestyle of long distance running and hiking. I’ve always had a very healthy diet, but would still have those after meal blood sugar spikes that would leave me feeling unwell. I decided to try the keto diet to see how my blood sugar did It’s been amazing. I’ve cut my insulin in half and my head is clear. I no longer have the brain fog. I sleep better and have more energy. I have been doing it for a year and have no desire to go off of it.
Today, make half of this GH exclusive Mediterranean Grilled Sea Bass recipe and reserve half of that for Thursday lunch. Increase your vegetable intake by serving half a bag of baby arugula leaves with this meal (save the other half for Thursday). Serve with one ear of corn and 1 cup cooked sugar snap peas topped with 2 teaspoons trans-fat-free light margarine. For dessert, have one frozen fruit juice bar (limit 80 calories for the bar).

At the end of this 12 week study, scientists observed similar loss in body fat and overall body weight in all three diets. However, they noted that the VLCARB ketogenic diet was “more effective in improving tracylglycerols, HDL cholesterol, fasting and post-meal glucose and insulin concentrations. More specifically, triacylglycerols decreased by 39.9% in VLCARB subjects, 4.0% in VLF subjects, and 9.6% in HUF subjects. [11]

“I think the caution with a low-carbohydrate diet is the idea that it’s very restrictive,” Zeratsky says. “When you start getting into the very low carbohydrates, when you’re talking about 20 grams, which for some people would be a cup of [starchy] vegetables. … If there is someone who is interested in it, it’s very important they understand what a low carbohydrate diet means in a practical sense.”
Similar to the CICO diet, the Body Reset has gained popularity via social media, and there isn’t any definitive research that suggests the approach is safe and effective. Celebrity trainer Harley Pasternak created the plan, which is essentially a three-phase liquid diet comprised of smoothies and moderate exercise. While U.S. News notes you may lose weight on the diet, it may be tough to stick with, and isn’t safe for people with diabetes and heart disease. (38)

You’re very welcome, Judy! I’m glad it’s helpful. If you are keto (as opposed to low carb), unfortunately peaches would not allow you to stay in ketosis. You can check my keto food list to help determine what is keto friendly. Of course, there are worse things than fresh fruit 🙂 but in the end our bodies still see the sugar. That being said, it doesn’t mean you sabotaged the whole day. Just pick up again – you got this!! (And for next time, try some fresh berries in moderation when you’re craving fruit.)
Your body uses the carbohydrates you eat for energy, so if we restrict how many carbohydrates we eat, the body has to get its fuel source from fat. A byproduct of this fat burning state are ketones which are produced; this is called nutritional ketosis. You can determine if you are in this fat burning state by purchasing urine ketone testing strips from your local pharmacy.

Another study, published in the New England Journal of Medicine in 2008, assigned 322 moderately obese adults to one of three diets: calorie-restricted low-fat; calorie-restricted Mediterranean; and non-calorie-restricted low-carb. After two years, the Mediterranean group had lost an average of 9 7/10 pounds; the low-fat group, 6 4/10 pounds; and the low-carb group, 10 3/10 pounds. Although weight loss didn't differ greatly between the low-carb and Mediterranean groups, both lost appreciably more than the low-fat group did.


Since plants can’t run away, they developed chemical defenses against hungry herbivores. One of these is phytic acid. Phytic acid binds to minerals with positive charges and keeps you from absorbing them. That means you won’t benefit from the iron, zinc, and calcium from the grains you eat.[14][15][16] The phytic acid will also bind to positively charged nutrients in any other veggies you eat alongside them.

What the diet advocate says: 'The classic keto diet was very strict and nowadays what’s become more popular even to use from a clinical scenario is called the Modified Keto diet which is more liberal in protein. And that’s generally what people are following for weight loss and energy. That would be roughly 65-70% fat, 20-30% protein with a very small carb amount 5-10%,’ says Dr Dominic D’agostino, professor of neuropharmacology at the University of South Florida.


The best low-cal diet plan isn't a diet so much as it is a method. CICO stands for "calories in, calories out" and is based on the mathematically sensible principle that as long as you're burning more calories than you're eating, you'll lose weight. All you need to get started is a way to track your calories—there are plenty of apps on the market although a pen and paper works great too—and a food scale to keep you honest about your portion sizes. (Also read this guide on how to safely cut calories to lose weight.) People love the simplicity and straightforwardness of the plan. And while it may not be the fastest way to lose weight, you're guaranteed to have success long term. (Just know that some weight-loss experts actually don't recommend calorie counting.)
Why is the keto diet good for you? A keto diet is one that prioritizes fats and proteins over carbohydrates. It can help reduce body weight, acne, and the risk of cancer. Find out about the mechanisms through which it achieves these benefits and the research that supports it. This MNT Knowledge Center article also discusses the risks of the diet. Read now
The DASH diet often flies under the radar, especially when compared to buzzy diets such as the Keto diet, but it’s one of the most widely-respected diets out there. U.S. News & World Report has named it the “Best Diet Overall” for eight consecutive years in its annual diet rankings, and it’s recommended by the American Heart Association, who used it to develop their 2010 Dietary Guidelines.

The ketogenic diet has the potential to decrease blood glucose levels. Managing carbohydrate intake is often recommended for people with type 2 diabetes because carbohydrates turn to sugar and, in large quantities, can cause blood sugar spikes. If you already have high blood glucose, then eating too many carbs can be dangerous. By switching the focus to fat, some people experience reduced blood sugar.
If not managed correctly, high blood sugar in diabetics can damage blood vessels and lead to a variety of illnesses. Unmanaged diabetes doubles the risk of cardiovascular diseases such as coronary artery diseases and stroke. [3, 4] Diabetes can damage small vessels in the eyes, kidneys, and nerves and lead to complications such as blindness and kidney disease. [4]
“It came to another frustration point that medication really isn’t helping,” Lofton says. “I had tried many other things, like a weight loss program. I tried looking into bariatric surgery, and was very frustrated that all these things — like watching my food intake and my servings, 60 grams (of carbs) per meal — all of that wasn’t really making a difference.”
SOURCES: WebMD Feature: "With Fruits and Veggies, More Matters." 2005 U.S. Dietary Guidelines. Elizabeth Ward, MS, RD, author, The Pocket Idiot's Guide to the New Food Pyramids. Elaine Magee, MPH, RD,author, Comfort Food Makeovers. Brian Wansink, PhD, professor and director, Cornell Food and Brand Lab, Ithaca, N.Y.; author, Mindless Eating. Barbara Rolls, PhD, professor of nutritional sciences; and director, laboratory for the study of human ingestive behaviors, Penn State University; and author, The Volumetrics Eating Plan.
The Mediterranean diet might help you lose weight. While some people fear that eating a diet like the Mediterranean diet that is relatively rich in fats (think olive oil, olives, avocado and some cheese) will keep them fat, more and more research is suggesting the opposite is true. Of course, it depends on which aspects you adopt and how it compares to your current diet. If, for instance, you build a "calorie deficit" into your plan – eating fewer calories than your daily recommended max or burning off extra by exercising – you should shed some pounds. How quickly and whether you keep them off is up to you.
“A little forethought can go a long way,” says Monica Auslander Moreno, MS, RD, LDN, consultant at RSP Nutrition. “In my practice I help clients stay on track with weekly meal prep planning guides or prep survival kits. If you fail to plan, you plan to fail,” she explains. By planning your meals in advance, you're less likely to give into temptation or consume extra calories from hidden oils, sugar, and sodium in many take-out dishes.
The ketogenic diet is a mainstream dietary therapy that was developed to reproduce the success and remove the limitations of the non-mainstream use of fasting to treat epilepsy.[Note 2] Although popular in the 1920s and 30s, it was largely abandoned in favour of new anticonvulsant drugs.[1] Most individuals with epilepsy can successfully control their seizures with medication. However, 20–30% fail to achieve such control despite trying a number of different drugs.[9] For this group, and for children in particular, the diet has once again found a role in epilepsy management.[1][10]

While studies have demonstrated the weight-loss benefits of the diet, Grandl says, several recent studies that apply more rigorous research techniques to study insulin resistance have suggested detrimental effects. The new study, published in August 2018 in the Journal of Physiology, aimed to better understand the basic biological processes that contribute to the development of type 2 diabetes and the early effects of the ketogenic diet. What people eat impacts the release of glucose, or sugar, in the bloodstream. High glucose levels can, over time, cause insulin resistance. Insulin is the substance released in the body to help manage and regulate sugar in the blood at healthy levels.
It reduces risk of disease. A growing number of studies suggest that people who follow a Mediterranean diet are less likely to die of heart disease than people who follow a typical American diet. (1) What’s more, evidence is emerging that shows people who eat this way have a lower risk of colon cancer, prostate cancer, and some head and neck cancers, according to studies published in September 2016 in the British Journal of Cancer and in February 2018 in the Journal of Urology. (27,28,29)

The 2019 rankings include 41 of today’s most popular diets. New to the list this year is the Nordic Diet, a plant-heavy eating plan that incorporates Scandinavian traditions and ranked 9th best overall. Here’s how the rest of the rankings shook out this year, and what experts have to say about the good, the bad, and the trendy. (Here’s a hint: They’re still not crazy about keto.)
There’s been no poultry or red meat so far in the menu, so plan for two dinners a week incorporating these animal foods instead of fish. Eat with family or friends, whenever possible, and listen to music instead of watching TV. Enjoy a glass of red wine with your meal; a moderate intake gives you polyphenols -- natural compounds in grapes -- that may protect you from heart disease, cognitive problems and even cancer.
Now I have to say, I am not a supporter of rigid plans, however it is important to eat at somewhat regular times so you don’t end up feeling very-very hungry at any particularly moment of the day. Having said that, I also think it is important to be able to actually feel hunger, and look forward to eating a meal.  While adding a snack here and there is good to keep blood sugar and hunger levels in balance, snacking can also backfire. Many times we eat a snack without being hungry or we depend on ready-made snacks such as granola bars, juices, smoothies etc. which not only add quite a few calories but also are a processed food with all that entails.
I’m sorry…no we don’t. Sure, more studies will happen, and more information is always good. But, we KNOW that keto works. You can argue that all you want…but in truth, facts don’t care about your feelings. There are plenty of studies, both in groups and in individuals, that prove beyond any reasonable doubt that going on a proper keto diet WILL improve your life as a diabetic, and will often allow the person to reverse diabetes completely (type 2, obviously). Not to mention the weight loss and the myriad of other health benefits it provides.
This drug is an injected variant of a satiety hormone called GLP-1. It slows down how quickly the stomach empties and tells the brain that you don’t need to eat yet – a great idea for losing weight. As a bonus this drug works fine while one is on the keto diet and it works even better with intermittent fasting – for a rapid weight loss with no hunger.
Shortly after World War II, Ancel Keys and colleagues (including Paul Dudley White, later President Eisenhower’s heart doctor) organized the remarkable Seven Countries Study to examine the hypothesis that Mediterranean-eating patterns contributed directly to improved health outcomes. This long-running study examined the health of almost thirteen thousand middle-aged men in the United States, Japan, Italy, Greece, the Netherlands, Finland, and then-Yugoslavia.
What is your opinion on the conflicting opinions about whether or not wine is healthy or harmful? It seems there is a daily article touting research that proclaims wine is health alternating with another article about research that indicates that even moderate intake of wine is associated with cancer or dementia. I’m trying to understand all of this conflicting data with the reality/evidence of Mediterranean cultures that include daily intake of wine. Is it the amount drunk that is key?
I am one of those strange people that enjoys reading about nutrition. I chose this book merely for this "diet" being listed as number one for the past few years. While I completely agree with the majority of the principals there are a few things I found disturbing. No coconut oil? However, margarine, Sugar free jello, low fat dairy products, diet drinks, and artificial sweeteners are promoted in this plan. Seriously? I am by no means a Purist but to put sugar free jello on a daily meal plan?
It is important to understand that the statement that carbohydrates are “nonessential” is not only factually inaccurate, it results in adopting a low-carbohydrate diet or ketogenic diet that increases your risk for a wide variety of chronic health conditions that may ultimately shorten lifespan, decrease your quality of life, and accelerate your risk for chronic disease.

Meat products make up a big part of the keto diet, but experts stress the importance of choosing quality. "Since the keto diet is based a lot on animal proteins, it's important to buy organic poultry and grass-fed, organic beef," says Aimee Aristotelous, RD. "Not only do organic selections help with limiting environmental toxins, but grass-fed options of red meats even change the composition of fats." The result, she explains, is that your body is able to better absorb those healthy fats.
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