Pros: Compared to eating a traditional diet, switching to a low-carb diet can significantly reduce body fat, studies show. Cap your carb intake at 20% of daily calories and the weight-loss results are even stronger—plus, you can reduce your risk for heart disease and stroke. Some research suggests low-carb diets are even better than low-fat diets: One study in Annals of Internal Medicine found that people who limited their carbs lost eight more pounds than those who cut back on fat. If you cut back on carbs enough, your body learns to burn fat as fuel instead. Studies are mixed on how low-carb diets affect performance, but some evidence suggests that endurance performance can actually improve among people whose bodies adapt to fat-burning fairly easily.

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)!
What the diet advocate says: The food baby of the US reality couple Heather and Terry Dubrow (she stars in the Real Housewives of Orange County; he’s a plastic surgeon starring in a show called Botched). ‘As opposed to the keto diet that aims to get you to a ketogenic state of using fat as fuel, which isn’t healthy or sustainable in my opinion, interval eating helps you go into a fat-burning state that leads to increased energy and cell renewal - a process called autophagy, the toxin-eating phase,’ says Terry.
Too little sleep or too much sleep can throw your stress and regulatory hormones out of whack, and may lead to weight gain. A single night of sleep deprivation can increase levels of ghrelin (a hormone that promotes hunger), making you more likely to overeat the next day. Reduced sleep may also lead to fatigue during the day (duh) and less physical activity, which may be another reason why people who regularly don't get enough sleep tend to gain weight.

Make sure that the diet has been studied extensively for safety — and discuss any changes with your physician or registered dietitian before beginning a new diet. (If you don’t have a dietitian, find one in your area at the Academy of Nutrition and Dietetics website.) And do a self-check to ensure the diet fits with your own values and preferences.
The keto diet did jump considerably in one specific category, however: This year it tied with several other diets for No. 2 in Best Fast Weight-Loss Diets (after the HMR Diet, a commercial plan that replaces most meals with pre-packaged nutrition bars and shakes), up from No. 13 last year. “Yes, you can do this for quick weight loss,” says Dr. Katz, “but I wouldn’t recommend it.”
“At its essence, boxing is really another form of interval training,” explains Rosante. But it also makes you feel insanely badass. Here’s the trick to remember: it’s a common mistake for beginners to punch using only their arm strength, but the majority of your power is going to come from your core and you’ll use muscles that are typically ignored in other workouts (hey there, obliques).
Losing weight on autopilot is appealing. But in the age of meal-delivery services (Blue Apron happens to be Whole 30-approved) — is there really a market need for gimmicky Nutrisystem? Our taste buds tell us no. You could easily recreate its no-prep diet by stocking up on breakfast bars, Lean Cuisine lunches, and signing up with the likes of HelloFresh for fast, healthy dinners. (Rough calculations tell us this approach would be equal or less than the monthly price of Nutrisystem.)

"At its essence, boxing is really another form of interval training," explains Rosante. But it also makes you feel freaking badass. Here's the trick to remember: It's a common mistake for beginners to punch using only their arm strength, but the majority of your power is going to come from your core and you'll use muscles that are typically ignored in other workouts (hey there, obliques).
Toning your abs when trying to lose belly fat is crucial as well. To make a traditional plank routine more challenging, add in side planks. Roll onto your left forearm and stack your right foot on top of your left. Hold this position for 60 seconds, then switch sides. Having only two points of contact rather than four works your core harder and challenges your obliques as well.
The most important consideration of any diet is finding one that you can stick with for the long haul. While many diets promise that you'll quickly shed pounds in the beginning, the truth is that reining in your eating will almost always result in quick, initial weight loss regardless of what program you decide to try. The trick is to find a program that -- after that first couple of weeks -- you can adhere to as your weight loss slows to more realistic levels. Experts say that people who make diets a lifestyle rather than just a "diet," while setting a goal of losing a pound or so a week, are more apt to keep the weight off over the long term.
The bonus burn: In a normal circuit, you’d perform each set at a maximum intensity followed by a long rest. But the "metabolic resistance training" method requires you to maintain a high (but sub-max) intensity throughout the workout, with little rest between sets for the entire session. “Research has shown that shortening the rest interval will increase EPOC,” says Miranda. “If you’ve been doing a circuit of 5 different weight exercises for 30 seconds of work and 20 seconds of rest, try decreasing the rest to 10 seconds.”
This popular plan recently underwent a rebranding to create a more balanced program, changing its four-phase approach with the help of a science advisory board. The Atkins Diet is still low-carb, but you won't be chowing down on steak and eggs all the time to promote weight loss. Lean protein is still key, but there's more of a spotlight on fiber, fruit, vegetables, and healthy fats.
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