This popular diet program is fairly restrictive — and for the first 30 days, dieters must cut out grains, legumes, most dairy, added sugar, and alcohol without any slip-ups, according to the Whole30 website. (29) The aim is to “reset” your body and to adopt dietary habits resulting in weight loss. Cutting out added sugar and alcohol has merit, but all the restrictions prove challenging and could lead to nutrient deficiencies and disordered eating.
Swapping out unhealthy foods for nutritious ones gives you benefits beyond just losing weight. "I cleaned up my diet, swapping deli sandwiches with high-sodium meat and mayo for Tupperware containers or big butter-lettuce salads topped with carrots, walnuts, feta, and homemade dressing," says Jennifer Lasher, who lost 75 pounds. "I found that ditching processed foods left me with more energy, a clear head, and better skin, too."
If you’re only getting a minimal amount of sleep each night, that leaves more time for you to snack and make otherwise unhealthy decisions that could affect your weight loss. Although it will vary from person to person on how much sleep you actually need to be most effective (and therefore make progress toward your weight loss goals), the ideal number is typically 7 or 8 hours, says Dr. Cheskin. (Struggling to get that shut-eye? This doctor-approved breathing exercise will help you fall asleep fast.)
Think cooking healthy meals is difficult and time-consuming? Think again. Annie Allen, a postsurgical nurse in Tampa Bay, Florida, let her freezer do half the work for her—and now she's down 52 pounds and runs about 10 races a year. "Frozen vegetables are as nutritious as fresh ones, and in minutes you have half of your meal prepared," she says. These frozen meals are also surprisingly healthy if you don't have time to mix and match one of your own.
Even if you do meet your goal, it's nearly impossible to keep off the weight over the long term: "The amount of restriction required [to maintain that number] will make you so hungry that you’ll eat everything in sight—it’s survival instinct," Dr. Seltzer says. And since calorie restriction gradually slows your metabolism, your body will be less prepared to burn the foods you binge on, he adds. That could mean gaining more pounds than you lost in the first place.
Both men and women are prone to an all-or-nothing approach to weight loss (for example, after a binge, figuring, “Well, I blew it. I might as well go all out!”). But Sass says she sees more women take extreme measures to get back on track, with tactics such as juice cleanses, skipping meals or extreme dieting — not the most sustainable methods. “Most but not all men tend to just try to get back on track with the original plan, or build in a little more exercise,” she says. That is, they take a more balanced approach to getting back on track, just trying to regroup and get back on the diet, or build in a little more exercise.
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.)
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.
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.
3. Be realistic about which habits need to go. "When I was heavy, I'd eat French fries every single day, plus carbs at almost every meal—like a sandwich for lunch or bread with pasta for dinner. A diet so heavy in fried food and carbs just isn't conducive to weight loss. To lose the weight, I went from three large meals a day to six small meals, mostly made of fresh vegetable salads with lean meats and nuts. And no more bread!"
Weight Watchers is still the best choice for both short-term weight loss and long-term healthy eating, while Jenny Craig rules in the prepackaged convenience category. But if neither of those works for you, we also review the top diet books, low carb diets, the Paleo diet and more. We even recommend less-expensive alternatives to the top commercial diets.
Your body needs a certain amount of essential vitamins and minerals to function properly. What happens when you don’t get enough of them? What happens when you eat too little food, or when the food you eat isn’t sufficiently nutritious? Perhaps our bodies catch on and reply by increasing hunger levels. After all – if we eat more, we increase the chances of consuming enough of whatever nutrient we are lacking.
Then, there’s biochemistry. In women, ghrelin — the “I’m hungry” hormone — spikes after a workout, while leptin — which tells the brain ‘I’m full!’ — plummets, according to a 2009 study in the American Journal of Physiology — Regulatory, Integral and Comparable Physiology. Not so in men. So post-workout, women tend to eat more, which puts them at risk to gain weight. Men don’t experience this same hormonal fluctuation.
Giancoli also recommends finding a diet that fits in with how you really live. She notes that if you enjoy going out to eat but try to commit to a diet that forbids you from ever going to a restaurant, you’re just going to cheat. “It’s not sustainable… You’re most likely going to have a healthier meal if you’re going to cook yourself, but you’re depriving yourself of that social interaction if you never go out.” To put it another way: Your eating practices shouldn’t isolate you or keep you from having fun.
Known as the carb-hating diet, the South Beach diet is a weight-loss food plan centered around low-carbohydrate meals. It’s important to note that the South Beach Diet doesn’t forbid carbohydrates, unlike many fad diets out there, instead, this healthy weight-loss system understands the intrinsic benefits of healthy carbs and builds them into your meal plans to maximize those strengths for optimal health and weight loss.
"Only doing abdominal-focused workouts, like crunches, won’t help you banish the bulge. Belly fat is simply where your body stores energy, so you need to take a whole-body approach to tackle it. HIIT training (high intensity interval training) is a great way to burn fat and get your heart rate up. Squats, burpees and treadmill sprints are all examples to try."
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.