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.
It’s true that a caloric deficit—burning more calories per day than you take in—is a requisite of weight loss. But creating a deficit doesn’t have to (and shouldn’t) involve deprivation. That goes for calories, carbs, sugar, fat, or any other commonly demonized nutrient. “No one food is responsible for your weight,” Langer says, explaining that a good vs. bad mentality sets people up for disordered eating and exercise habits. In fact, caloric deprivation increases how the brain responds to food, setting you up for binge-eating down the line, according to research from the Oregon Research Institute.
There’s a reason why protein takes center stage in many popular diet plans: it helps you feel full and stokes your metabolism enough to help you avoid the typical one or two pounds most adults gain each year. Your body burns slightly more calories after eating protein compared with fats or carbs, and protein from food also helps keep your muscles from deteriorating as you age. (Strength-building exercise is another important part of this process.) In order to get these benefits, you need to include protein at each meal, and getting adequate amounts of protein at breakfast — about 20 grams — is especially important. Making a beeline for the bagels or cereal means your body misses a key opportunity to rebuild muscle tissue, which naturally breaks down as you sleep. If this is your morning routine, your muscle mass will start to decline, and that means your metabolism will slow down. So skip the AM pastries and other carb-rich fare, and opt for an omelet or smoothie made with Greek yogurt or protein powder, instead.
If you’re allergic or sensitive to a certain ingredient and continue eating it, you’re likely to struggle with losing weight. The food is triggers inflammation, as your body fights against it. As you continue eating the same food that’s making you ill, the inflammation continues, making you a lot more susceptible to extra pounds and other health issues.
Skimp on fluids, and your body will release an antidiuretic hormone that leads to water retention that could affect the scale, Dr. Setlzer says. While this sneaky effect is one reason why the scale is a poor measure of body mass loss, you can outsmart it by drinking more—particularly if you fill your glass with water or non-calorie alternatives like unsweetened coffee and tea.
That’s where these tips come in. We talked with eight women over 40—all of whom have lost 40 or more pounds!—about the tools and methods that helped them make lasting healthy changes. And we've got to admit that they’re pretty darn genius! Try incorporating a few into your weight loss plan, and you just might find yourself on the fast track to getting into those skinny jeans. (Looking for even more slim-down secrets? Don’t miss these 6 things you must do to lose weight over 40.)
Build muscle. Muscle burns more calories than fat. So adding strength training to your exercise routine can help you reach your weight loss goals as well as give you a toned bod. And weights are not the only way to go: Try resistance bands, pilates, or push-ups to get strong. A good, well-balanced fitness routine includes aerobic workouts, strength training, and flexibility exercises.

14 ways to lose weight without diet or exercise Strict diets can be challenging to follow, and people may not always have the time or ability to exercise. However, a variety of simple lifestyle changes can help people lose weight and improve their health. These include taking probiotics, getting enough sleep, and thoroughly chewing food. Learn more here. Read now

We all want a toned, flat stomach. No surprise there. But since many women are still relying on crunches to get it, we want to make one thing clear: Crunching is not the most effective abs workout. "Crunches work only the muscles on the front and sides of your abdomen, but it's important to target all the muscles of the core to get more defined abs—including lower back, hips, and upper thighs," says Lou Schuler, co-author of The New Rules of Lifting for Abs. (Also try these 20 tricks for engaging your core and getting a sneaky abs workout.)
A similar program, TOPS (Est. $32 per year, plus $5 chapter dues), pairs a wealth of educational material with group meetings in your community, also called "chapters." TOPS, which stands for Take Off Pounds Sensibly, uses The Food Exchange System, which users say is easy to understand and follow. It has categories of foods with similar serving sizes and caloric loads, and it's easy to swap one food for another. You can even purchase exchange cards that give you food options within categories at a glance, as well as a variety of other accessories, such as food prep tools scaled to accurate portion sizes.
Use a calorie-needs calculator like LIVESTRONG.COM’s MyPlate app to figure out your daily calorie needs, then subtract calories to create your energy deficit. With an app like MyPlate, you can factor in your weight-loss goal, and it will tell you the exact number of calories (as well has how much fat, protein and carbohydrates) you need to reach that goal.
Cut back on calories. The most important part of losing weight is not working out until you collapse — it's your diet. If you burn 500 to 750 more calories than what you eat every day, you will lose 1–2 pounds every week (any more than that is considered unsafe weight loss). There are tons of little changes you can make to cut calories from your diet, from replacing high-calorie dressings with vinaigrette and asking for all dressings/sauces served on the side, eating at the table instead of in front of the tv, skipping cheese and other fatty additions to your salads and meals, using smaller plates, leave off the whipped cream on your coffee drink, and on and on.[2]
“Getting deep down to the root of why you want to lose weight is a very powerful and eye-opening experience,” she says. “I do this exercise with my clients. I give them a piece of paper and they start at the top with the initial reason they want to lose weight. Often, it starts with reasons like ‘I will look better.’ Under that, I ask them why that is important. Sometimes there are some very deep and powerful reasons that are incredibly motivating like ‘I want to lose weight to travel on an airplane with my husband on our second honeymoon’ or ‘to be able to really play with my kids.’”
Grains get a bad rap when it comes to weight loss, but that's because refined grains (read: processed foods!) are linked to wider waists. 100% whole grains are bloat-busting superstars, however, as they're packed with minerals and de-puff by counter-balancing salt. Stick to brown rice, quinoa, wheat, barley, millet, farro, sorghum, and amaranth for the biggest benefits.
The study began with 609 relatively healthy overweight and obese people, and 481 completed the whole year. For the first month, everyone did what they usually did. Then, for the next eight weeks, the low-fat group reduced their total fat intake to 20 grams per day, and the low-carb group reduced their total carbohydrate intake to 20 grams per day. These are incredibly restricted amounts, considering that there are 26 grams of carbs in the yogurt drink I’m enjoying as I write this, and 21 grams of fat in my half of the dark chocolate bar my husband and I split for dessert last night.
There’s a phenomenon I’ve see happen again and again. A husband and wife realize they’ve been enjoying their after-dinner snacks a bit too much and are seeing the numbers on the scale rise. They decide to embark on a healthy diet to shed those excess pounds and, ideally, lose weight fast. Two months later, the husband’s shed serious pounds and is looking trim, while the wife struggles to get the scale to budge, even after a diet full of kale salads and grilled chicken breast.
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Whereas many beverages can increase your waistline (see above), there is one that is guaranteed to trim your tummy: water. Drinking plain ol’ H2O works because staying fully hydrated tells your body it’s okay to release any extra water it’s retaining, decreasing the accompanying bloat. Plus, drinking water has been proven to reduce cravings for sweets, lower your appetite, and help you feel satiated faster. Here 9 more ways to bust belly fat in a single day!
Other diabetes medications. Insulin-releasing tablets (e.g. sulphonylureas) often lead to weight gain. These include: Minodiab, Euglucon, Daonil, and Glibenclamide. Tablets like Avandia, Actos, Starlix and NovoNorm also encourage weight gain. But not Metformin. The newer drugs Victoza and Byetta (injectable) often lead to weight loss, but possible long-term side effects are still unknown. More on diabetes
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."
If you can keep up motivation and accountability without the assistance of an app or a like-minded community, the book should give you all necessary tools. While we weren’t floored by Mayo’s online offerings, the app does have one cool feature (if you can get it to work): Enable your camera to eyeball the correct size of any food item in comparison to a virtual baseball, hockey puck, set of dice.
We all want a toned, flat stomach. No surprise there. But since many women are still relying on crunches to get it, we want to make one thing clear: Crunching is not the most effective abs workout. "Crunches work only the muscles on the front and sides of your abdomen, but it's important to target all the muscles of the core to get more defined abs—including lower back, hips, and upper thighs," says Lou Schuler, co-author of The New Rules of Lifting for Abs. (Also try these 20 tricks for engaging your core and getting a sneaky abs workout.)
Consider them “good carbs”. Their bulk takes up space in your stomach, helping you feel full and eat less. The top fiber food: beans, which contain 8g per 1/2 cup. Research shows that guys who added 12g of fiber a day to their diet lost a quarter of an inch from their love handles, without otherwise modifying their diet. Here are some of the best sources.
“Patients can diet themselves down to any weight they put their minds to, but to maintain that weight, they need to actually enjoy the lifestyle that got them there,” writes Yoni Freedhoff, M.D., the medical director of the Bariatric Medical Institute in Ottawa, Canada, and Arya M. Sharma, M.D., Ph.D., the founder and Scientific Director of the Canadian Obesity Network, in Best Weight, a manual for clinicians who treat patients pursuing weight loss. “A patient’s best weight is therefore whatever weight they achieve while living the healthiest lifestyle they can truly enjoy.”
Luckily, that doesn’t mean you need to dedicate even more time exercising. In fact, high-intensity interval training (HIIT) workouts can slash the time commitment while boosting results. HIIT workouts last about 20 minutes and combine bursts of super-intense exercise with slower recovery phases. This type of workout has been found to help people lose more fat once the workout is over, even though they burn less calories during the workout (since workouts are shorter) and also build muscle, rather than break it down the way conventional cardio does. (3)
When you exercise on the rowing machine, try this interval workout: Row for 60 seconds, note the distance on the machine, then rest 60 seconds. Repeat, only this time, row for 55 seconds and try to match or better your distance from the first time. Rest 55 seconds, then repeat, reducing the time to 50 seconds. Continue until you can’t beat your original distance.
Diet plans are usually divided into three categories, namely Low Carb, High Carb and High Protein. Menu choices also include vegetarian, gluten-free, allergy and diabetic-appropriate meals. It is essential that you consult with a doctor or a nutritionist before enrolling in a diet program this is to ensure that the diet plan is in-tune with their health condition.
If you're dehydrated, it can be hard to tell if you're hungry or just thirsty. If you're craving a mid-day snack, have a glass of water and wait a few minutes before reassessing how hungry you really are. Water also helps food move through your digestive system, lessening feelings of bloating. It's a good idea to keep a water bottle with you throughout the day. Add in cucumber slices or fresh fruit to infuse flavor.
Salads are the go-to diet food, you’re probably thinking. How could they possibly keep me from losing weight? The problem is with what you put on the salad. “Salad items like nuts, fruits, some dressings and extras like croutons and cran-raisins, can actually add an extra 300-400 calories to the meal,” says Angela Godwin, FNP-BC MSN, clinical instructor at the NYU Rory Meyers College of Nursing. “Instead, greens and proteins can make a salad more filling with less fat.” Also, steer clear of “lite” salad dressings that secretly have high sugar content. Look out for these other weight-loss mistakes nearly everyone makes.
Choose Liquid Calories Wisely. Sweetened drinks pile on the calories, but don't reduce hunger like solid foods do. Satisfy your thirst with water, sparkling water with citrus, skim or low-fat milk, or small portions of 100% fruit juice. Try a glass of nutritious and low-calorie vegetable juice to hold you over if you get hungry between meals. Be careful of alcohol calories, which add up quickly. If you tend to drink a glass or two of wine or a cocktail on most days, limiting alcohol to the weekends can be a huge calorie saver.
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