There's a pretty dizzying amount of research backing up this regime as a solid option to enhance your health, lower cholesterol, and encourage healthy, lasting weight loss. DASH (the acronym stands for Dietary Approaches to Stop Hypertension) has you loading up on fruits, vegetables, and whole grains (surprise!) and removing foods high in saturated fat from your diet. Research also shows that this diet may even ward off the onset of type 2 diabetes.
The best diet for losing weight is Weight Watchers, according to the experts who rated the diets below for U.S. News. Volumetrics came in second, and Jenny Craig and the vegan diet were third on this overall weight loss ranking list, which takes into account short-term and long-term weight loss scores. Some other diets performed as well or better in our rankings for enabling fast weight loss, but long-term weight loss is more important for your health.
Stephen Colbert may be on to something. UCLA Center for Human Nutrition researchers divided study participants into two groups, each of which were fed a nearly identical low-cal diet for 12-weeks. The only difference between the groups was what they were given to eat as an afternoon snack. One group ate 220-calories of pretzels while the other group munched on 240-calories worth of pistachios. Just four weeks into the study, the pistachio group had reduced their BMI by a point, while the pretzel-eating group stayed the same, and their cholesterol and triglyceride levels showed improvements as well.
The good news is that weight loss pills don’t need to have earth-shattering effects to improve your health. According to a study by Gerry Oster and other epidemiology researchers, a sustained 10% weight loss (which you could achieve by taking Alli for two years) would reduce your risk of heart disease and stroke and significantly increase your life expectancy (3).
Consider a diet's overall approach to food. What will you be eating every day? Is there much variety, or will you be eating the same foods frequently? If most (or even some) of the foods on a plan aren't enjoyable, within your budget, or readily available, you're going to find a particular plan hard to stick with. Ask yourself: realistically, could you eat the foods on this plan more or less for the rest of your life?
The fad military diet consists of low-calorie, odd food pairings such as bun-less hot dogs with banana, carrots, and broccoli. “Any diet like the military diet that severely limits the amount of calories you consume or eliminates one or more entire food groups puts any individual at risk for nutrient deficiencies,” says Kyle. “This can be more harmful than holding onto those 10 extra lb you’re trying to lose.” (32)
If you eat your dinner restaurant style on your plate rather than family style, helping yourself from bowls and platters on the table, you’ll lose weight. Most of us tend to eat an average of 150 percent more calories in the evening than in the morning. You’ll avoid that now because when your plate is empty, you’re finished; there’s no reaching for seconds.
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.
You don't need to work out for hours on end to see results. High-intensity interval training (HIIT) alternates bursts of all-out exercise with brief rest periods, and research shows this training style burns fat more effectively than longer workouts that maintain a steady intensity. Download, print, or Pin this HIIT workout that gets the job done in 10 minutes.
Don't become overwhelmed with the initial hype. Really consider whether you can maintain a plan and if it provides the tools and strategies you require for long-term success. Can you realistically eat this way for the rest of your life? Does the plan include other strategies – exercise, sleep, stress control, etc. – that complement long-term success? Once you've found the right plan, commit to it. What you put into it, you'll get back. Very best wishes as you begin your fat-loss journey. 
"Order without looking at the menu. Almost every restaurant has the basics—veggies, grains, and protein. If you go in knowing what you want, I guarantee you'll be able to make a meal. If you're too uncomfortable to ask for what you need, tell a white lie: Say you're allergic. I know it's controversial to suggest this, but women in particular can really have trouble standing up for their own needs. So if you want the broccoli soup puréed without cream, tell the waiter you're lactose intolerant."

Rise and shine—literally! Researchers from Northwest University found that people who were exposed to bright daylight earlier in the day tended to weigh less than those who didn’t get sunlight until later. So right after you wake up, open the blinds and let the sunshine in. Or better yet, step outside and enjoy your morning cup of coffee on the front porch
While the American College of Sports Medicine warns that women who eat less than 1,300 calories a day and men who eat less than 1,800 risk slowing down their metabolism over time. But a rev-up stage that only lasts two weeks is approved by doctors and isn’t as difficult as it seems. Our tester found the Mayo Clinic day pretty satisfying, and still had enough energy to hit the gym.
If the diet is a quick fix rather than one that promotes lasting lifestyle changes, this could pose a problem. In particular, extreme diets that promise big weight loss up front aren’t always sustainable — and you may end up overeating or even binge eating if you feel deprived. “Consider if the diet’s habits are ones you can continue throughout your lifetime, not just 21 or 30 days,” says Angie Asche, RD, a sports dietitian in Lincoln, Nebraska.
If you are searching for the best weight loss method, it can be tempting to use a program that looks new or trendy. Many programs advertise that you can eat whatever you want and still slim down. But this study confirms—and most nutrition experts agree—that a nutritious, calorie-controlled diet, healthy moderate exercise, and emotional support are the best path to weight loss and permanent weight maintenance. Work with your health care provider or a nutrition professional to build a program that you feel good about so you feel confident about sticking to it for life.
I’m in favor of any program that promotes whole foods over hyper-processed fare, and this is one thing the popular diet plans can agree on. Overly processed foods have been linked to weight gain, perhaps because many unhealthy packaged foods (think: potato chips, ice cream, frozen pizza, cookies and the like) lack the fiber found in many whole foods, including vegetables. Fiber helps fill us up, and research suggests that by simply adding more fiber to your menu, you can lose weight nearly as well as a more complicated approach. Consistently choosing whole foods is one way to do this.
Stavrou, S., Nicolaides, N. C., Papageorgiou, I., Papadopoulou, P., Terzioglou, E., Chrousos, G. P., … Charmandari, E. (2016, July 31). The effectiveness of a stress-management intervention program in the management of overweight and obesity in childhood and adolescence. Journal of Molecular Biochemistry, 5(2), 63–70. Retrieved from https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4996635/
Nuts, the second food to watch, contain a fair amount of carbohydrate, and it’s very easy to unwittingly scarf down large quantities. Cashew nuts are among the worst carb-wise – you’ll find that they contain around 20% carbohydrate by weight. For someone following a strict keto diet with a 20 grams of carbs per day allowance, this means that consuming 100 grams (which happens in a flash!) will have filled their daily quota. Peanuts tend to be around 10-15% carbohydrate – not putting them in the clear either.
The researchers hypothesize that participants who abstained from animal products dropped significantly more pounds since plant-based foods include loads of filling fiber and slow-to-digest complex carbs. Though more research is needed to confirm these results, the study authors write, "Vegetarian diets appeared to have significant benefits on weight reduction compared to non-vegetarian diets."
Hairballs are a fact of life for many cat owners, especially those with longhaired felines in their lives. The AvoDerm Hairball & Weight Control Cat Food is a great choice for pet parents who find themselves cleaning up hairballs far too often. AvoDerm is made with avocados, which have been known to promote a healthy coat in pets. The top ingredients in AvoDerm are chicken and rice, so it’s not a grain-free choice. AvoDerm has 5% fiber, which aids in digestion and helps reduce hairballs.
We know that shedding unwanted pounds used to mean giving up your favorite foods, logging hours at the gym, and being hungry (and hangry) all the time. Fortunately, dropping a dress size (or two) doesn’t have to be that complicated or torturous. Sure, losing any significant amount of weight requires lifestyle changes and some hard work, but it all boils down to simple choices.
Protein is naturally filling and takes longer to digest than simple carbohydrates. When people drank a whey protein drink, they lost about 4 pounds more and about an inch more from their waists over 6 months and felt less hungry than people given a carbohydrate shake instead. Other research in mice, found that when mice were given extra whey protein they gained less weight and body fat and more lean muscle, even when calories were the same. Whey protein is found naturally in yogurt and other dairy.
MyFitnessPal: An app widely recommended by trainers and fitness enthusiasts, MyFitnessPal is great for tracking macros. Goal macros: 50% carbs, 30% fat, 20% protein. It further breaks these general guidelines into specific gram amounts that make it easy to see how some macros add up quick (carbs) and others don’t (protein — hitting 64 grams takes conscious effort!).

Even listening to music while you eat can lead to weight gain, according to a study published in the journal Appetite. Research showed that people who listened to music ate more food, and it didn’t matter the pace or volume of the music playing. It’s best to focus on the food you’re eating while you’re chowing down, which help you tune in to signals of feeling full.

Fearing all fat is a thing of the past. Monounsaturated fatty acids (MUFAs) actually help you lose weight, not gain it. When researchers asked women to switch to a 1,600-calorie diet high in MUFAs, they lost a third of their belly fat in just 4 weeks. Sprinkle a handful of nuts on your salad, drizzle a tablespoon of olive oil over steamed veggies, or mash a quarter of an avocado onto your breakfast toast.
Drinking plenty of water is essential for overall health, and is a great way to boost your weight-loss efforts. But if you’re getting your H2O from cheap bottled water, the bottle itself could pose a problem; Bisphenol A, commonly referred to as BPA, has been linked to obesity, and it’s still found in many cheap plastics. A 2011 Harvard study found that adults with the highest concentration of BPA in their urine had significantly larger waists and a chance of being obese than those without as much of the chemical in their systems. So if you must drink store-bought bottled water, check to see if the bottle is BPA-free. And whatever you do, don’t reuse the same bottle; constantly refilling the same plastic bottle can cause BPA to leak into the water.
Ever find yourself at the end of a workout, and you've barely even broken a sweat? Real-time feedback from a wearable device that tracks heart rate or calories burned may inspire you to push yourself harder. (Plus, you'll feel more connected to your training.) Try the Fitbit Charge HR ($140; amazon.com), Withings Pulse 02 ($100; amazon.com), or the Intel Basis Peak ($173, amazon.com).
With this eating style, you’re looking at a lot of menu planning and preparation. A review published in August 2017 in Nutrients suggests the diet could lead to weight loss, but the Academy of Nutrition and Dietetics warns the plan could also cause certain nutrient deficiencies, such as in calcium and vitamin D. (3,4) And, therefore, according to an article published in the January–February 2016 issue of the Royal Australian College of General Practitioners, anyone at risk for osteoporosis should avoid it. (5)

“My dad is like a food-pushing wizard, he’s always pulling stuff out of his pockets or showing up with delicious food,” says Mary Mock. While the family tradition of surprise sweets was fun, when it came time to lose weight, she knew she had to put a stop to all that temptation. “At first, he seemed hurt when I kept saying no but when I explained it was for my health, he got on board. Sometimes I still have to remind him though!” she says.
Stephen Colbert may be on to something. UCLA Center for Human Nutrition researchers divided study participants into two groups, each of which were fed a nearly identical low-cal diet for 12-weeks. The only difference between the groups was what they were given to eat as an afternoon snack. One group ate 220-calories of pretzels while the other group munched on 240-calories worth of pistachios. Just four weeks into the study, the pistachio group had reduced their BMI by a point, while the pretzel-eating group stayed the same, and their cholesterol and triglyceride levels showed improvements as well.
Watch your drinks. It's amazing how many calories are in the sodas, juices, and other drinks that you take in every day. Simply cutting out a can of soda or one sports drink can save you 150 calories or more each day. Drink water or other sugar-free drinks to quench your thirst and stay away from sugary juices and sodas. Choosing nonfat or low-fat milk is also a good idea.
Though they work through a variety of mechanisms, one thing weight loss pills have in common is tilting the calories in / calories out equation in your favor. Reducing calories in can come from supplement ingredients that suppress your hunger or reduce the amount of calories you actually absorb. Increasing calories out, which is the mechanism by which most weight loss pills function, can happen by increasing your energy expenditure or your fat oxidation.
“Intermittent fasting can be really challenging if you have an ever-changing schedule,” adds Hultin. “If you're traveling and crossing time zones, it could be very difficult to follow. It might be best for people with more stability in their lives.” Intermittent fasting isn’t safe for people with type 2 diabetes, children, pregnant or lactating women, or anyone with a history of an eating disorder.
Sure, there's your one friend who swears by the Taco Cleanse. And that other friend who ate nothing but broccoli soup for a month and dropped 20 pounds, found the love of her life, and got promoted at work. But before you start blending 80 stalks of broccoli into a cup or crunching your way through a crate of tacos, check out which diets are backed by science. Because don't you want to try one that will do the trick for you?
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