We pulled the top 14 of the best commercial diets (marketed to the public for profit) and the top 12 of the best diets overall. We also threw five of the most popular diet apps into the mix. Since these are largely tracking devices that don’t espouse unique eating habits, they don’t appear to meet US News’ definition of diet, but are still potentially effective weight loss tools.

This is hardly surprising when you consider just how successful (or not) quick-fix diet solutions have proven to be. Research indicates that not only do nearly 70% of fad diets fail due to people neglecting to couple them an appropriate exercise regime, but 65% of people who successfully complete a fad diet will end up gaining all of their weight back within a matter of months.


Whatever your weight loss exercise of choice, the key to efficient weight loss is to avoid your body adapting to your weight loss program, whether it is your nutritional or exercise program: vary the mode, vary the place you train, vary the workout, vary the time of day, vary the intensity of the workout, vary the duration, vary as much as you can.

“Don't like eating meat?” asks Ginger Hultin, RDN, a dietitian in private practice in Seattle and a spokesperson for the Academy of Nutrition and Dietetics. “Then don't be paleo! Travel a lot and rely on eating out? The DASH diet may end in frustration for you.” The bottom line: The diet you choose needs to be safe and effective, while taking into account your lifestyle.
I'm not telling you that it's easy, but it really is pretty simple. In an age where people don't even have to go outside to grill a steak, it's tempting to spend a few dollars on a quick fix. Human anatomy hasn't changed much throughout history, however. If you adopt your grandparents' work ethic and apply it to your every day life, you will achieve your greatest results.
So how does this work? A quick run-through: The first tip was to eat low carb. This is because a low-carb diet lowers your levels of the fat-storing hormone insulin, allowing your fat deposits to shrink and release their stored energy. This tends to cause you to want to consume fewer calories than you expend – without hunger – and lose weight. Several of the tips mentioned above are about fine-tuning your diet to better this effect.
There is always a lot of controversy when it comes to evaluating diets. Many people are firmly in one camp or another over the "right" way to eat. Studies are often contradictory in their findings, and many critics charge that government recommendations are influenced by the food industry. We present the controversies and cross-opinions, when relevant, but we do not take sides; in our opinion the best diet is the one you feel best on and can stick with.
When it comes to weight lifting for weight loss, it is important to put a few key points out there. First, you will not get BIG from lifting weights. You get “big” from overconsumption of energy (calories), which can be converted into fat or muscle based on the types of foods you eat and the exercise you do. Second, you can lift more than you think—and you should (with the help of a spotter, if necessary). And finally, if weight training is done properly you will likely be sore the day or two after your workouts (especially if you are new to resistance exercise). This is called delayed onset muscle soreness, or DOMS, and it is a normal response to weight training. Be sure to stretch, drink plenty of water and incorporate sound nutrition to help your body recover quickly between workouts. 
The internal and external obliques, which I like to call "nature's girdle," are located at the sides of the rectus abdominis. They are the muscles you use when you bend sideways at the spine or twist at the waist. They also contract to compress the abdomen, so you should work them just as hard as you work the rectus abdominis. Adding a twist to crunches works, as well as dumbbell side bends, but be careful not to use any jerky motions, especially if you've had back problems.
The Therapeutic Lifestyle Changes diet, most commonly called the TLC Diet (Free), has a name that's about as interesting as cold broth, but experts say it's a top choice to lower cholesterol and that you will lose weight if you follow the eating and activity guidelines. The downside to this diet is that you have to figure out which foods to eat and there is no support. Guidelines are available online on the U.S. National Institutes of Health website, but they're not as specific as with fee-based weight loss programs. However, while there are no "official" community websites that accompany the TLC diet, there is plenty of information available online from dieters who have successfully followed the programs and offer their suggestions, recipes and tips.
One of the most important things about this diet plan is the 6 p.m. carb cutoff. By not eating carbs at night, your body depletes your glycogen stores while you sleep. Then, when you wake up and do your cardio, your body will turn to your stored fat for fuel since there is little-to-no muscle glycogen left over from the night before to burn in the day ahead.
When it comes to the "best" diet for most people, this one consistently ranks at the top of every list. If you can't afford a cruise to the Mediterranean (yet!), at least you can eat like the beautiful, long-living, and famously healthy people from the region. The Mediterranean diet teaches you to eat like a Sardinian, one of the "blue zones" identified by researchers as having a high number of people living past 100—by eating more fish, olive oil, healthy fats, and fresh vegetables. The point is to have not just a longer life but also a healthier and happier one, whether you're trying to lose weight or not. (Really—research shows that you can reap the benefits of the Mediterranean diet without cutting calories.)
The Paleo Diet (Free) is not intended to be a weight loss diet, per se, but rather a way of eating that is meant to be permanent. In many Paleo protocols, there is a strong emphasis on grass-fed or organic foods, which can be pricey and may not be readily available to some, but other programs recommend that you just purchase the highest quality of food you can afford. Exercise is strongly encouraged. You don't count calories; you just eat until you're satiated.
If you don’t have an established exercise routine, simply walking is the best first step toward weight loss. “Walking is a pretty good entry point for people,” says Gagliardi. This is particularly true if you have been out of the gym for a while and want to ease back into a workout routine. One small study published in The Journal of Exercise Nutrition & Biochemistry found that obese women who did a walking program for 50 to 70 minutes three days per week for 12 weeks significantly slashed their visceral fat compared to a sedentary control group.
So how does this work? A quick run-through: The first tip was to eat low carb. This is because a low-carb diet lowers your levels of the fat-storing hormone insulin, allowing your fat deposits to shrink and release their stored energy. This tends to cause you to want to consume fewer calories than you expend – without hunger – and lose weight. Several of the tips mentioned above are about fine-tuning your diet to better this effect.
If you want to lose weight you should start by avoiding sugar and starch (like bread, pasta and potatoes). This is an old idea: For 150 years or more there have been a huge number of weight-loss diets based on eating fewer carbs. What’s new is that dozens of modern scientific studies have proven that, yes, low carb is the most effective way to lose weight.

I lost over 50 pounds and ate a little organic oatmeal, white rice or white potato or white pasta one to two times daily. When i tried to remove those carbs twice i ended up not having as much endurance and satiety and binging. Organic has less crap and when it’s a small side with some meat and vegetables it worked for me. This is also partly using mental techniques, like Neville Goddard teaches, a clean diet with a reasonable weekly cheat meal, and working out at the gym for up to an hour most days of the week. Also since I don’t drink coffee/tea a baby dose of a caffeine pill helped me have the energy and motivation to work out or I’d get anxious on it. But after many months I need to go from 1/2 a pill to a full pill but that’s ok because the normal dose is 2 pills morning and night but I took it slow since i have less tolerance to caffeine. I want to lose 20 more and done.
All you need is a pair of sneakers before you head out the door. But if weight loss is the name of your game, the lackadaisical head-out-for-a-light-jog style of running isn't the way to go. Instead, find a hill you can sprint up, or crank the incline on that treadmill. "Running up hills forces you to work your glutes and legs—two of your body's biggest muscle groups—even more, which requires smaller muscle recruitment and more energy expenditure," explains Rosante. As noted earlier, the more energy you're using, the brighter that calorie-burning fire burns. But proper form here is key. "Lean into the hill, and drive your knees as high as you can, striking the ball of each foot down directly under your body," he says. "Keep your hands open and arms bent at 90 degrees, and drive your arms straight forward up to face level, then backward to the top of your back pocket." And try not to let your arms cross over your body—that'll just waste the precious energy your muscles need. If you're training indoors, here are a few fat-burning treadmill routines to get you started.

Switch to Lighter Alternatives. Whenever you can, use the low-fat versions of salad dressings, mayonnaise, dairy products, and other products. "You can trim calories effortlessly if you use low-fat and lighter products, and if the product is mixed in with other ingredients, no one will ever notice," says Magee. More smart substitutions: Use salsa or hummus as a dip; spread sandwiches with mustard instead of mayo; eat plain roasted sweet potatoes instead of loaded white potatoes; use skim milk instead of cream in your coffee; hold the cheese on sandwiches; and use a little vinaigrette on your salad instead of piling on the creamy dressing.

HIIT gives you a well-rounded workout while burning a ton of fat and calories. “HIIT workouts can vary greatly, from 500 calories per hour to 1500-plus calories per hour for an 180-lb man,” says Ryan. “HIIT workouts are great because of the intensity of each exercise as well as the variation of exercises and reps.” Pairing any body-weight movement with a weighted movement and a traditional cardio element and you have the perfect recipe for an amazing fat-burner.
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.
As you get older, your body changes how it gains and loses weight. Both men and women experience a declining metabolic rate, or the number of calories the body needs to function normally. On top of that, women have to deal with menopause. "If women gain weight after menopause, it's more likely to be in their bellies," says Michael Jensen, MD, professor of medicine in the Mayo Clinic's endocrinology division. In menopause, production of the hormones estrogen and progesterone slows down. Meanwhile, testosterone levels also start to drop, but at a slower rate. This shift in hormones causes women to hold onto weight in their bellies. The good news: you can fight this process. Read on.
A study in the April 1999 issue of the Journal of the American College of Nutrition proved the calorie-burning benefits of muscle. The study put two groups of obese individuals on a very low-calorie diet. One group did only aerobic exercises four times per week while the other group did only resistance exercises three times per week. After 12 weeks, the aerobics group lost more weight than the resistance group. However, in the aerobics group almost one third of the weight lost was muscle. The resistance group lost only fat.
Stationary bikes are a mainstay at most gyms, but there’s a reason most people aren’t waiting in line to use them: “You must be willing to go at an intense rate,” says Adams—so no pedaling while scrolling through your smartphone. “During a vigorous indoor cycling or spin class, the average 180-lb. man may burn close to 1,150 calories per hour, while a more moderate ride will only burn half that amount at about 675 calories per hour.”
A daily run or Spin class is great for your heart, but cardio workouts alone won't do much for your waist. "You need to do a combination of weights and cardiovascular training," says Sangeeta Kashyap, MD, an endocrinologist at Cleveland Clinic. Strength training increases muscle mass, which sets your body up to burn more fat. "Muscle burns more calories than fat, and therefore you naturally burn more calories throughout the day by having more muscle," says Kate Patton, a registered dietitian at Cleveland Clinic. Patton recommends 250 minutes of moderate-intensity exercise or 125 minutes of high-intensity exercise a week.
Another popular mainstream diet, Dr. Barry Sears's plan is considered to be one of the first in the recent wave of "anti-inflammatory" plans. It sets you up for success by calibrating your plate to be a third protein and two-thirds carbohydrates (not starchy ones like potatoes, think colorful vegetables instead) with a little bit of MUFAs, or monounsaturated fatty acids (the good-for-you kind ) in the mix.
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