Emerging evidence suggests that eating this way may offer protective effects for those with and at risk for type 2 diabetes. For one, Mediterranean eating improves blood sugar control in those already diagnosed with the condition, suggesting it can be a good way to manage the disease. What’s more, given those with diabetes are at increased odds for cardiovascular disease, adopting this diet can help improve their heart health, according to a paper published in April 2014 in the journal Nutrients. (4)
Dairy products such as cream and cheeses. They work well in cooking as they satisfy. The problem is if you’re munching a lot of cheese in front of the TV in the evening… without being hungry. Be careful with that. Or lots of cream with dessert, when you’re actually already full and just keep eating because it tastes good. Or another common culprit: loads of heavy cream in the coffee, many times per day.

From celebrity-endorsed to science-backed, finding the best diet for your body and lifestyle can be an exercise in frustration—definitely not the kind of exercise you need right now! To make your search easier, we've pulled together the 10 most popular diets based on which ones have consistently ranked highest on the annual U.S. News & World Report rankings, WebMD, and other current diet lists. Just know this: It's not about finding out which diet is the most popular overall but which one fits your goals and lifestyle the best. After all, the best diet for you is the one you can stick with (and enjoy)!

Based on long-overlooked DASH research and developed into a weight loss plan by the foremost DASH dietitian and leading nutrition expert, Marla Heller, MS, RD, this effective and easy weight loss program includes menu plans, recipes, shopping lists, and more. Readers will enjoy a diet rich in fruits, vegetables, low-fat and nonfat dairy, lean meats/fish/poultry, nuts/beans/seeds, heart healthy fats, and limited amounts of whole grains. The result: improved metabolism, lower body fat, improved strength and cardiovascular fitness, without counting calories. And, of course the DASH diet can lower cholesterol and blood pressure without medication!

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.
While reading the weekly meal plans I could close my eyes and picture enjoying the tastes of these dishes while soaking in the awesome summer weather on the patio with my girlfriend, with a glass of my favorite California red wine. “The diet also recommends four ounces of red wine in the evening with your meal. Red wine contains flavonoid which helps reduce your risk of developing cardiovascular disease. That’s my favorite part,” shared Susan.

From an outpatient clinic, we recruited 28 overweight participants with type 2 diabetes for a 16-week single-arm pilot diet intervention trial. We provided LCKD counseling, with an initial goal of <20 g carbohydrate/day, while reducing diabetes medication dosages at diet initiation. Participants returned every other week for measurements, counseling, and further medication adjustment. The primary outcome was hemoglobin A1c.


Many diets, including Atkins and the keto diet, fit into this umbrella. A typical low-carb diet limits carbs to less than 60 g daily, but this can vary, according to the Mayo Clinic. (15) In a September 2015 review published in PLoS One, people following low-carb diets saw modest weight loss — although study authors note that long-term effects of the diet require further research. (16)
Great article! Sustainability is key and Keto diet is extremely restrictive compared to others. Many of the comments I see don’t understand the importance of many years of research before stating something has a “significant difference” than the recommendations that are already in place. Also, understanding the pro/carb/fat balance in each meal instead of focusing on just carbohydrates. We have practiced the same modified Mediterranean diet at my practice where someone can enjoy life, eat complex carbohydrates and years later they are still successful and hundreds of pounds have been lost for good 🙂 Thank you for the reminder (and the comparison of Adkins supported research).
Body Fat Reduction. According to the current research literature, both visceral and subcutaneous fat play a role in the development of type 2 diabetes. [22] To keep our fat cells from fighting against us, we must adopt a healthier lifestyle that prevents us from being in a calorie surplus and gaining weight. The keto diet is one lifestyle change that has been proven time and time again to help us lose fat and improve metabolic health.  [24]
Walnuts are packed with tryptophan, an amino acid your body needs to create the feel-great chemical serotonin. (In fact, Spanish researchers found that walnut eaters have higher levels of this natural mood-regulator.) Another perk: "They're digested slowly," said Dr. David Katz, director of the Yale Prevention Research Center. "This contributes to mood stability and can help you tolerate stress."
Voted the "Best Diet Overall" for the past eight years in a row by U.S. News & World Report, the DASH diet can help you meet and maintain your health goals. The original intention of the DASH Diet (Dietary Approaches to Stop Hypertension) was to help lower high blood pressure (or hypertension), which research shows it does well. But even if you don't have high blood pressure, you might benefit from trying the DASH Diet, as research also shows it promotes weight loss and combats diabetes, all while being easy to follow and nutritious.
Grains and beans are high in lectins, and it’s no surprise that the top allergen foods also have a high lectin content. The lectins in nightshade vegetables can be troublesome for some people, while others handle them just fine. Cooking and peeling removes some of the lectin content in vegetables (but not grains, they’re pretty heat stable), but some super-sensitive people have to avoid them completely.
The cost of the Mediterranean diet, like most aspects of the diet, depends on how you shape it. While some ingredients (olive oil, nuts, fish and fresh produce in particular) can be expensive, you can find ways to keep the tab reasonable – especially if you're replacing red meats and meals with plant-based home cooking, some research suggests. Your shopping choices matter, too. Can't spring for the $50 bottle of wine? Grab one for $15 instead. And snag whatever veggies are on sale that day, rather than the $3-a-piece artichokes.
This high-fat, adequate-protein, low-carb fad diet sends the body into a state of ketosis, in which the body uses stored fat for energy. Research published in Clinical Cardiology suggests the ketogenic, or “keto,” diet can be an effective weight loss method, but to be successful, you must follow the plan consistently with no cheat days — otherwise, you’re just eating a high-fat diet that may be high in unhealthy fats for no reason. (1) (A pro tip? If you're planning on doing the diet, consider perusing this complete keto food list and reading up on the healthiest fats for keto diet followers.)
The "all meat all the time" low-carb approach or strict veganism can be great options for people who thrive on clear diet rules (and those two are actually the most popular diets out there) but these extremes are not for everyone. If you prefer more of a moderate approach, the Flexitarian diet is the clear winner. The "flexible vegetarian" mindset allows you a healthy balance of plant-based foods, responsibly sourced meats, and quality fats. The best part? It's not super restrictive, so you have plenty of nutritious food options. (Start here: How to Adopt a Flexitarian Diet)
The DASH (Dietary Approaches to Stop Hypertension) diet is sometimes prescribed by doctors to help treat high blood pressure. Blood pressure is the amount of pressure that blood places against the walls of arteries. It will normally vary throughout the day but if it remains too high, this is called high blood pressure or hypertension. Untreated high blood pressure can lead to heart disease, stroke, congestive heart failure, kidney disease, and blindness. [1]
Milk is limited. There are no long-term risks to eating Mediterranean, says Cohen. But you may be put off if you’re big on eating a lot of milk and rely on it to get all the calcium you need. You’ll get to eat cheese and yogurt, but in smaller amounts. "To get enough calcium in the diet without milk, one would need to eat enough yogurt and cheese, or seek nondairy calcium sources," says Cohen. If needed, drink skim milk. Otherwise, nondairy calcium sources include fortified almond milk, sardines, kale, and tofu made with calcium sulfate. (30)
After increasing water intake and replacing electrolytes, it should relieve most all symptoms of Keto Flu. For an average person that is starting a ketogenic diet, eating 20-30g of net carbs a day, the entire adaptation process will take about 4-5 days. My advice is to cut your carbs to fewer than 15g to ensure that you are well on your way into ketosis within one week. If you are experiencing any more keto flu symptoms, double check your electrolyte intake and adjust.
High blood sugar levels coupled with high blood ketones, on the other hand, will mean that you have a pathologically low level of insulin – something non-diabetics do not suffer from. This can lead to ketoacidosis – a potentially life-threatening condition. If this happens, you’ll need to inject more insulin; if you’re at all unsure of what to do, contact a medical professional. Coveting really high blood ketones for weight control is not worth the risk for type 1 diabetics.
The DASH diet plan focus on increasing vegetables, fruits, whole grains, and legumes; choosing lean meats, low-fat dairy, nuts and healthy fats; and limiting added sugars, trans fats, added salt, and processed foods. Serving sizes from each food group are based on individual calorie needs (see below for a 1600-calorie plan), and you’ll likely find that the plan looks pretty close to the MyPlate plan, as well as another consistently rated “top diet,” the Mediterranean Diet. Here’s a breakdown of the recommended nutrients in a typical day and week on the DASH diet:
The popular low-carb diets (such as Atkins or Paleo) modify a true keto diet. But they come with the same risks if you overdo it on fats and proteins and lay off the carbs. So why do people follow the diets? "They're everywhere, and people hear anecdotally that they work," McManus says. Theories about short-term low-carb diet success include lower appetite because fat burns slower than carbs. "But again, we don't know about the long term," she says. "And eating a restrictive diet, no matter what the plan, is difficult to sustain. Once you resume a normal diet, the weight will likely return."
There are many ways to do intermittent fasting — ranging from fasting for a number of hours each day up to an entire 24-hour fasting period one or two times a week. “If you're trying to kick a habit like eating late into the night, then stopping eating earlier in the evening and fasting overnight could be beneficial for you,” says Hultin. “There are many types of intermittent fasting, so ensuring you pick one that works for you and your lifestyle is important.”
Yet it’s an incredibly well-rounded way to lose weight that ditches gimmicks and doesn’t require calorie or macronutrient counting as other diets do. And with the emphasis on healthy fat, it’s satisfying, too. That said, the 2019 U.S. News & World Report Best Diets ranked the Mediterranean diet as No. 1 for Best Diets Overall and it ranks 17 in their list of Best Weight-Loss Diets. (3) The reviewers note that it’s not a slam dunk, and all depends on how you eat. Even healthy diets like the Mediterranean aren’t free-for-all eating plans.
Alison Moodie is a health reporter based in Los Angeles. She has written for numerous outlets including Newsweek, Agence France-Presse, The Daily Mail and HuffPost. For years she covered sustainable business for The Guardian. She holds a master’s degree from Columbia University’s Graduate School of Journalism, where she majored in TV news. When she's not working she's doting on her two kids and whipping up Bulletproof-inspired dishes in her kitchen.
Your glycogen stores can still be refilled while on a ketogenic diet. A keto diet is an excellent way to build muscle, but protein intake is crucial here. It’s suggested that if you are looking to gain mass, you should be taking in about 1.0 – 1.2g protein per lean pound of body mass. Putting muscle on may be slower on a ketogenic diet, but that’s because your total body fat is not increasing as much.5Note that in the beginning of a ketogenic diet, both endurance athletes and obese individuals see a physical performance for the first week of transition.

Lectins are another way plants defend themselves. Food naturally wears and tears your gut lining as it passes through. The normal repair process is part of the digestion program. Lectins interfere with the repair by binding to the lining of your gut and blocking healing.[17][18] This leaves microscopic holes in the gut, which allows undigested food particles to pass through, and then you find yourself constantly afflicted with low-level inflammation.


That's certainly the case with the ketogenic diet—a very low-carb meal plan—based on the findings of two recently published studies.1,2  Dr. Saslow and her team report that the individuals with type 2 diabetes who followed the keto diet lost significantly more weight than those on the low-fat diet espoused by the American Diabetic Association.1 These dieters also were able to get their hemoglobin A1c (HbA1c) below 6.5%, suggesting that some may have reversed their type 2 diabetes.1
According to the Mayo Clinic, the DASH diet calls for eating lots of fresh veggies and fruits, but it requires consuming only a moderate amount of whole grains, as well as lean sources of protein and healthy fats, such as fish and nuts, respectively. (6) This distinguishes the DASH Diet from other popular plans, such as the Atkins diet and the ketogenic diet, or the high-fat, low-carb diet.
If you are pregnant or are nursing, you should not follow a Ketogenic diet. You will not receive enough of the recommended carbohydrates, vitamins and nutrients necessary for yourself and your growing baby on this diet. Your obstetrician will recommend how many carbohydrates you should consume per meal and for snacks during each phase of your pregnancy. They will likely refer you to a Certified Diabetes Educator for nutritional counseling as well. Please check out The Diabetes Council’s FAQ’ About Gestational Diabetes for all your gestational diabetes related questions.

A 2012 CDC study found that the average adult consumes about 100 calories worth of alcohol daily, but favoring a glass of wine instead of beer or sugary cocktails can drastically reduce that figure and make your waistline slimmer. In addition to having fewer calories than most alcoholic beverages, red wine, in particular, is a good source of those waist-shrinking flavonoids that are also found in red fruits. Resveratrol, a particular flavonoid found in red wine, is believed to have heart health benefits because it helps prevent blood vessel damage and reduces your ‘bad cholesterol.’ Just remember to imbibe in moderation.


Without peer-reviewed clinical trials, many of the benefits remain anecdotal. For instance, Weiss himself has been on a low-carb high-fat (though not strictly ketogenic) diet for more than six months, and claims he does feel much better. But he’s clear about what he knows and what he doesn’t. He’s lost weight and his borderline pre-diabetes is gone.  
Wolfrum said he and his colleagues don't want to stop people from changing their diet if that's what's necessary to reach a healthy weight, but they think it's important for people to know that "the [final] verdict on the ketogenic diet is not out yet." There's still more research to be done to fully understand the long-term effects of a high-fat, low-carb diet. In the meantime, said Wolfrum, "more balanced food intake is probably the healthiest way to live."

At the first visit, participants were instructed how to follow the LCKD as individuals or in small groups, with an initial goal of ≤20 g carbohydrate per day. Participants were taught the specific types and amounts of foods they could eat, as well as foods to avoid. Initially, participants were allowed unlimited amounts of meats, poultry, fish, shellfish, and eggs; 2 cups of salad vegetables per day; 1 cup of low-carbohydrate vegetables per day; 4 ounces of hard cheese; and limited amounts of cream, avocado, olives, and lemon juice. Fats and oils were not restricted except that intake of trans fats was to be minimized. Participants were provided a 3-page handout and a handbook [11] detailing these recommendations. Participants prepared or bought all of their own meals and snacks following these guidelines.
Trim Portions. If you did nothing else but reduce your portions by 10%-20%, you would lose weight. Most of the portions served both in restaurants and at home are bigger than you need. Pull out the measuring cups to get a handle on your usual portion sizes, and work on paring them down. Get instant portion control by using small bowls, plates, and cups, says Brian Wansink, PhD, author of Mindless Eating. You won't feel deprived because the food will look plentiful on dainty dishware.

During the 1920s and 1930s, when the only anticonvulsant drugs were the sedative bromides (discovered 1857) and phenobarbital (1912), the ketogenic diet was widely used and studied. This changed in 1938 when H. Houston Merritt, Jr. and Tracy Putnam discovered phenytoin (Dilantin), and the focus of research shifted to discovering new drugs. With the introduction of sodium valproate in the 1970s, drugs were available to neurologists that were effective across a broad range of epileptic syndromes and seizure types. The use of the ketogenic diet, by this time restricted to difficult cases such as Lennox–Gastaut syndrome, declined further.[10]
I am a T2D, finally fully keto starting at the end of March. I am down 28 lbs. My goal is 50, so I am feeling encouraged and fitting into smaller sizes already. In May my A1C was 5.6. This morning, according to a home test kit I purchased from CVS, my A1C is 5. I believe that is fairly accurate based on my blood sugar readings, which are staying well below 100.
It’s low in saturated fat. You’re not going to feel hungry eating this way, because you can build in a variety of healthy fats. But by limiting large amounts of red or processed meats and relying heavily on monounsaturated fatty acids, like avocado, nuts, or olive oil, you’ll keep saturated fat levels low. These fats don't lead to high cholesterol the same way saturated fats do. Healthful sources of fat include olive oil, fish oils, and nut-based oils, Cohen explains.
“Instead of using a heavy salad dressing, try a drizzle of thick balsamic glaze along with a squeeze of fresh lemon or lime juice” Taub-Dix says. “By cutting the fat in your diet, you can not only save calories, but you can also leave room for healthier fats like avocado or nuts, which are toppings you can actually chew and enjoy with greater satisfaction.”
The ketone bodies are possibly anticonvulsant; in animal models, acetoacetate and acetone protect against seizures. The ketogenic diet results in adaptive changes to brain energy metabolism that increase the energy reserves; ketone bodies are a more efficient fuel than glucose, and the number of mitochondria is increased. This may help the neurons to remain stable in the face of increased energy demand during a seizure, and may confer a neuroprotective effect.[55]

For even more impressive effects on body composition: aim for exercise forms which elicit a positive hormonal response. This means lifting really heavy things (strength training), or interval training. Such exercise increases levels of the sex hormone testosterone (primarily in men) as well as growth hormone. Not only do greater levels of these hormones increase your muscle mass, but they also decrease your visceral fat (belly fat) in the long term.
Rich in low-starch vegetables, fruit, healthy fats (mostly from olives and olive oil), nuts, seeds, whole grains, legumes, and fish, the Mediterranean diet eschews simple sugars and refined starches and is low in red meat. Interested in embarking on the diet for yourself? Read through to see a Mediterranean diet shopping list, what it's like to be on the diet, and why it's so easy to follow.
Lele says that it’s important to remember that, while keto is a “high fat” diet, the goal is to use your body fat as an energy source, not the fat that’s on your plate. “You don’t need to necessarily add more fats to your diet to adhere to keto. For instance, if your dinner consists of avocado, bacon, and eggs, you really don’t need to add butter to that to make it ‘more keto’,” she says.
Cyclical keto diet: The Bulletproof Diet falls into this category. You eat high fat, low carb (less than 50 grams of net carbs a day) five to six days of the week. On day seven, you up your carb intake to roughly 150 grams, during what’s called a carb refeed day. Carb cycling this way helps you avoid the negative effects some people experience when they restrict carbs long term, like thyroid issues, fatigue and dry eyes.[9][10]  Learn more here about how carb cycling works.
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