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.
Whether you're headed to the beach, prepping for a special occasion or just want to jump-start a healthier lifestyle, you can set the foundation for belly fat loss in a week. And while you likely won't reach your final weight loss goals in a week -- unless you're only looking to lose a pound or two -- you might be able to see minor differences and burn some initial belly fat. However, the results from diet and exercise modifications can keep you motivated to stick to longer term goals, and they'll set you on a road to success -- without the high risk of weight regain associated with fad crash diets.

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)
Sometimes you exercise adequately and adopt a host of natural remedies to lose belly fat but still, you can’t. If that’s what happens to you, you need to analyze your lifestyle and make some small changes. These changes are very small but may need a while to convert into a habit. If you really want to get rid of your abdominal fat, you better start bringing these lifestyle changes from now itself.

So she started researching. She found something called the 21-Day Meal Plan, which seemed like it would work with their lives. The plan showed them what foods they could eat and what they should skip. They started by cutting sugar, junk and processed foods and added vegetables, fruit, legumes, whole grains and lean meats, such as chicken and turkey. In the first week, Parent noticed a difference.

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That’s because it theoretically causes a mild ketosis (yep, the basis of the keto diet), which is a fat-burning state that should make you feel less hungry. The key in being successful with a low-carb diet (especially if you’re used to a more high-carb lifestyle) is to compensate for those lost carbs with protein-rich foods, says Dr. Cheskin. That way, your volume of food stays the same, but you’re doing it healthfully rather than in a way that exacerbates your weight gain.

As the weight-loss process varies from person to person, there is no one-size-fits-all when it comes to dieting. The efficacy of any weight-loss program is dependent upon your commitment to the plan and how well it fits into your lifestyle. This is why it’s important to consider your weight-loss goals and lifestyle parameters before launching into a weight-loss program.
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.
Your phone, tablet, and television may be affecting your waist size in more ways that one. Obviously if you’re sitting on electronics then you’re not moving around and burning calories. But the effects go beyond just energy. Blue light from electronic screens can disrupt your circadian rhythms; so our addiction to electronics is reducing our sleep as people favor Netflix-bingeing to bed. Both of these effects have been linked to higher levels of belly fat. These 21 other terrible habits will make your belly fat worse.
Including your significant other in your workouts can help to keep you on track, even if your goals aren't necessarily the same. "My hubby and I make exercise outings 'our' time," says Twyla Grimes, who knocked off 26 pounds by combining an hour on the stairmill or treadmill with strength training. "We'll go to the gym for an hour and lift weights together. Having him there keeps me accountable."

"About a year ago, I went to the doctor for my annual exam. I had just turned 30, and the number on the scale was the highest it had ever been, and my cholesterol was high," says Lauren Zarzour, 31. "I joined Weight Watchers and ClassPass. I'm now 30 pounds lighter and have developed a better understanding of nutrition and a passion for the gym. I've learned how much more you value food when every day isn't an indulgence, and how amazing it is to be strong. I wish I would have known how easy it could be, but I don't think it would have been easy if I hadn't had that epiphany." (Related: How to Rekindle Your Weight-Loss Motivation) 
An increase in fiber intake is also recommended for regulating bowel movements. Other methods of weight loss include use of drugs and supplements that decrease appetite, block fat absorption, or reduce stomach volume. Bariatric surgery may be indicated in cases of severe obesity. Two common bariatric surgical procedures are gastric bypass and gastric banding.[13] Both can be effective at limiting the intake of food energy by reducing the size of the stomach, but as with any surgical procedure both come with their own risks[14] that should be considered in consultation with a physician. Dietary supplements, though widely used, are not considered a healthy option for weight loss.[15] Many are available, but very few are effective in the long term.[16]
The best diet is the one we can maintain for life and is only one piece of a healthy lifestyle. People should aim to eat high-quality, nutritious whole foods, mostly plants (fruits and veggies), and avoid flours, sugars, trans fats, and processed foods (anything in a box). Everyone should try to be physically active, aiming for about two and a half hours of vigorous activity per week. For many people, a healthy lifestyle also means better stress management, and perhaps even therapy to address emotional issues that can lead to unhealthy eating patterns.
FitDay combines professional support from dietitians, with a variety of useful tools to help you lose weight and keep it off. Whilst it’s not the cheapest option around, the expert advice and support are great for keeping you motivated and tracking accurate data to help improve your weight loss and attain your personal goals. Information is key, and the online tools help to keep...
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 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.)
It works in three different phases. The first phase takes two weeks and helps you eliminate cravings for starches, carbs and sugars by removing them from your diet. It replaces these foods with plenty of lean proteins and low-fat dairy foods. Phase 2 allows you to reintroduce some foods previously prohibited back into your diet with the intention of having better control over your eating habits. You stay in this phase until you reach your weight goal. Phase 3 allows you to eat all types of food in moderation; this should become the healthy lifestyle you will live by from now on. To make food choices simpler, this program delivers meals directly to your door. While this means very little food preparation is required, it also makes this one of the most expensive dieting services on the market. Unfortunately, there is no food substitution guide. To keep you on track, you can contact nutritionists weekly to ask questions and receive tips. Our own tester was able to lose 10 percent of her body weight within two weeks using this program. The biggest downside to her experience was not being able to access progress reporting through the company.

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Without alcohol, they’re less fattening, right? Yes and no. It’s true that alcohol adds calories, but so do the ingredients you’re swapping in. Virgin margaritas, pina coladas, and daiquiris are made with fruit juices and sometimes syrups, which have loads of calories and sugars. Instead, Amidor recommends sticking with alcohol—in 5 ounces of wine or a 12-ounce light beer. Here are the weight-loss motivation techniques 22 real people used to lose weight.
A recent study in the journal Nature found that mice who were fed a breakfast in which 45 percent of the calories came from fat tended to burn more body fat over the next 24 hours than those who ate a meal that was only 20 percent fat. This is early research—it needs to be repeated in humans—but mono and polyunsaturated fats like those found in avocados and nuts do have plenty of health benefits when you eat them in moderation.
Green tea isn't known only for its cancer-fighting benefits: It may help boost your metabolism, too. People who took green-tea extract three times a day saw their metabolic rate increase by about 4 percent, according to a study published in the American Journal of Clinical Nutrition. (Translation: You could burn an extra 60 calories a day, which equals about six pounds a year!) It may be because green tea contains catechins, which increase levels of the metabolism-speeding brain chemical norepinephrine, says Joy Bauer, a New York City nutritionist and author of Cooking with Joy.

Fighting belly fat is 80% healthy diet. Reduce calories by filling yourself up with protein, vegetables, whole grains, and replacing bad habit snacks with good ones. For example, if you have a sugar craving, replace your calorie laden latte with a Muscle Milk lite, one of my favorites, because it has zero sugar and a ton of protein that will satiate while also torching my sugar craving! Another great trick is a sprinkle of cinnamon in your morning coffee or oatmeal- the spice has been shown to help stabilize blood sugar. It also slows the rate at which food exits the stomach, which helps you feel fuller longer.
DASH stands for "dietary approach to stop hypertension" and was created by the National Institutes of Health (NIH) as a way to help reverse national trends of obesity and heart disease. Scientists combed through decades of research to come up with an expert-backed list of diet tips, along with a prescription for exercise. And it worked: The DASH diet has topped nearly every diet list for nearly a decade. Doctors particularly recommend it for people looking to lower high blood pressure, reverse diabetes, and lower their risk of heart disease. (Here's the basic list of DASH diet-approved foods.)
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.
One of the most potent sources of vitamins, minerals, fiber, and protein per ounce found in the natural world, Chia seeds are one of the healthiest foods you can eat to help your body burn belly fat.  Because they have almost no flavor, you can add Chia seeds to just about anything.  For more information, read these 10 Emphatic Reasons Why You Should Add Chia Seeds To Your Diet Today!
●Personalize your portions. If you’re a woman eating with a man, customize your portions to suit your body’s needs, says Sass. That might mean more veggies and smaller servings of protein and foods with starch and fat. For example, on burrito night, skip the tortilla in favor of a bed of greens, and stick to a piece of lean protein the size of a smartphone, a small scoop of a healthful starch such as brown rice and a dollop of guacamole.

Use an adult energy needs calculator to estimate your calorie intake needs; then subtract the 500 to 1,000 calories for weight loss. For example, a 28-year-old woman who is 5 foot, 9-inches tall weighs 175 pounds and is lightly active -- less than an hour a day -- burns about 2,400 calories daily. She'll burn about 2 pounds of fat in a week if she eats 1,400 calories daily, or 1 pound a week if she eats 1,900 calories a day.

This content is strictly the opinion of Dr. Josh Axe and is for informational and educational purposes only. It is not intended to provide medical advice or to take the place of medical advice or treatment from a personal physician. All readers/viewers of this content are advised to consult their doctors or qualified health professionals regarding specific health questions. Neither Dr. Axe nor the publisher of this content takes responsibility for possible health consequences of any person or persons reading or following the information in this educational content. All viewers of this content, especially those taking prescription or over-the-counter medications, should consult their physicians before beginning any nutrition, supplement or lifestyle program.

Under-eating and skipping meals have various links to weight gain, not weight loss. Alyssa Ardolino, RD, Nutrition Communications Coordinator, International Food Information Council Foundation, explains that hunger is a pendulum—and restrictive diets cause people to go from one end to the other. “When we’re extremely famished, we’ve swung the hunger pendulum so far back, the only natural reaction is to have it swing hard in the other direction, which means we’re more prone to overeating,” she says. “Opt instead for a healthy medium by eating regularly to keep your hunger at bay.” Here are 15 things you don’t realize are sabotaging your weight loss. 
And while the weight room can be intimidating for women, pumping iron is key to getting a toned and fit physique. Don’t worry, lifting heavy weights won’t make you bulky — you just don’t have the testosterone to build the size of a man. Lifting will improve your posture, make your arms, core and lower body more shapely and boost your metabolism by building muscle. Resistance training also helps you hold onto muscle that you naturally lose as you age.
Yes, you read that right! “Get rid of your low-fat and fat-free yogurts, milk, and cheeses. Full-fat dairy (and many of these 20 Best Full-Fat Foods for Weight Loss) contains anti-inflammatory fatty acids, like butyrate and conjugated linolenic acid (CLA), that can support healthy metabolic function and fat-burning, says Minchen. “Additionally, full-fat dairy contains vitamins A and K, two vitamins that need fats to be absorbed and metabolized.” However, fair warning: full-fat products do carry more calories, so be sure to cut back elsewhere so you don’t up your total calorie count.
Get all that? Basically, the differences between groups were minimal. Yes, the low-fat group dropped their daily fat intake and the low-carb group dropped their daily carb intake. But both groups ended up taking in 500 to 600 calories less per day than they had before, and both lost the same average amount of weight (12 pounds) over the course of a year. Those genetic and physical makeups didn’t result in any differences either. The only measure that was different was that the LDL (low density lipoprotein) was significantly lower in the low-fat group, and the HDL (high density lipoprotein) was significantly higher in the low-carb group.

Measuring success with only the number on the scale isn’t painting an accurate picture of progress, according to Ardolino. “Just because someone is losing weight doesn’t mean they’ve adopted healthy, life-long habits,” she says. “We’d like to believe that we have the power to achieve any weight we desire; that’s simply not true.” Instead of focusing on weight loss as the primary goal, establish other ones such as cooking more at home, creating an exercise schedule you enjoy, or eating more fruits and vegetables. These habits are all rooted in self-care and will not only be more relevant to you but more likely to last, Ardolino says. 


– Get enough fat. Short-chain fats, like those found in coconut oil, promote weight loss and are associated with a decrease in body weight, waist size, and blood triglycerides. Healthy fats protect your body, promote proper cell function, support the release of fat-burning hormones, aid in the absorption of vitamins and minerals, and add flavor to foods.
There's a reason you've been hearing so much about cutting meat out of your diet lately. It's not just great for your body, but also a quick way to shed some extra pounds. "Consider swapping a few meat-centric meals each week for ones centered around vegetarian proteins — or give a full-fledged vegetarian diet a try if that's of interest to you," Gorin says. "Research shows eating a vegetarian diet may boost and speed up weight loss, resulting in a loss of up to 10 pounds." Gorin recommends topping a salad or filling a veggie taco with vegetarian protein sources like pulses — which are beans, chickpeas, lentils, and dried peas — to give your weight loss a boost. One study found eating ¾ cup of pulses daily led to a loss of close to a pound over about six weeks, versus people not eating pulses daily.
When your body is low on calcium, it produces a hormone that signals the body to store visceral fat. Meeting your recommended daily calcium needs (that’s 1,000 milligrams for adults) can help reduce levels of this hormone. And a recent study published in Obesity Research found that calcium from dairy has a stronger effect than calcium from other sources. I recommend eating low-fat Greek yogurt as a daily snack (just six ounces contain about 20 percent of your recommended dietary allowance for calcium), though any low-fat dairy will do.
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