All of our RD experts agree: H2O is crucial. “Water is so important when trying to lose weight since it helps to you feel full between meals,” says Amy Shapiro, RD, founder of Real Nutrition NYC in New York City. Here’s a simple hydration rule of thumb: Shoot to consume half as many ounces of water as your total body weight in pounds. (So if you weigh 180, sip on 90 ounces of water each day.)


Drinking enough water can help you stay slim, too. Research from the American Chemical Society in Boston found that having two 8-ounce glasses of water before a meal while also reducing portion sizes could help you lose weight and keep it off. Not to mention, water fills you up, curbing your appetite: "In addition to slightly boosting your metabolism, drinking water before meals has been shown to help you eat less without trying," says Sass.

“Stop focusing on calories and start focusing on the quality of the foods you eat. High-quality diet options are natural, whole, minimally processed foods, like vegetables, fruits, nuts or seeds that offer a lot more nutritional value in the form of vitamins, minerals, healthy fats and fiber. These foods help tame hunger naturally and nourish our cells at the deepest level so that we aren’t left with constant cravings. — Michelle Loy, MPH, MS, CSSD, Registered Dietitian Nutritionist and owner of Go Wellness in Orange County, California
Before you head out to dinner, pour yourself a cup of green tea. The active ingredient in green tea, EGCG, boosts levels of cholecystokinin, or CCK, a hunger-quelling hormone. In a Swedish study that looked at green tea’s effect on hunger, researchers divided up participants into two groups: One group sipped water with their meal and the other group drank green tea. Not only did tea-sippers report less of a desire to eat their favorite foods (even two hours after sipping the brew), they found those foods to be less satisfying.
This double-blind clinical trial study was conducted on 42 obese and overweight individuals (25 < BMI < 35). Participants were selected from those, who referred to a nutrition clinic (Ahvaz, Iran). Participants were screened based on the inclusion and exclusion criteria. Inclusion criteria were lack of physical activity, no smoking, no alcohol drinking, no usage of herbal supplements and vitamins, and lack of weight changes in the last 6 months. Exclusion criteria included pregnancy, breastfeeding, use of drugs that effect metabolism, lipid and glycemic profile, eating disorder, diabetes, cardiovascular disease, kidney problems, thyroid, digestive, respiratory diseases, and cancer. Participants consuming more than 300 mg of caffeine daily (described as caffeine users) were excluded from the study (20). The level of physical activity was assessed weekly by phone. The subjects, who had moderate or various physical activities, were excluded from the study.
The plan is simple: Commit to two weeks of restricted dieting, then transfer to a sustainable regime. Phase one: Cut out restaurant food, added sugar, eating while watching TV, snacking on anything other than fruits and veggies, and limit meat and dairy. You’re also asked to add four healthy habits, simple tweaks like having a good breakfast every morning.
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
As for the health benefits of green tea, research does show that it may help protect against cardiovascular disease by preventing the oxidation of LDL cholesterol and reducing blood clotting. A meta-analysis of 13 randomized controlled trials, showed that it significantly lowered blood pressure, as well as LDL cholesterol and total cholesterol. So, adding a few cups of unsweetened green tea each day may be beneficial for heart health.
In addition to its 4 grams of belly-filling fiber, a cup of hearty oatmeal delivers as much protein as an egg. In other words, the popular breakfast food is an excellent weight loss tool. In fact, according to a study in the Annals of Nutrition and Metabolism, scientists found that having oatmeal for breakfast resulted in greater fullness, lower hunger ratings, and fewer calories eaten at the next meal compared with a serving of ready-to-eat sugared corn flakes, even though the calorie counts of the two breakfasts were identical. For an added fiber boost, sprinkle some berries and chia seeds on top of your oatmeal, but be sure to stay away from fattening syrup and sugar.
What's more trustworthy than a diet built by experts from the Mayo Clinic? Created by doctors, nutritionists, and all-star chefs, the plan has a few phases: In the first, you should lose 6 to 10 pounds in two weeks. After that, you can expect to lose 1 to 2 pounds a week until you reach your goal weight. You're also given plenty of resources and advice to help you keep the weight off.
Maintain a consistent exercise program. Even though intense exercise is effective for weight loss, hard workouts put your body at a higher risk for injury and burnout. And you're not likely to burn enough calories for weight loss while you're recovering on the couch. Easy workouts are usually safer for your body and may allow you to be more consistent, week to week and month to month.
Need a midday snack? This combo offers protein, healthy fats, and fiber to fend off hunger. With about 160 calories for 50 of them, pistachios are one of the lowest-calorie nuts. Plus, they’re usually packaged in their shells, which can slow you down and keep you from munching mindlessly. The apple adds sweetness and crunch to your treat, along with 4 grams of fiber.
Too tired to hit the gym? This meal can help you out. Beef is rich in protein and iron, which your body uses to build red blood cells. They take oxygen to your organs, so falling short in those can zap your energy. Broccoli is the perfect side, because its vitamin C helps your body take in iron. A half-cup of this veggie has 65% of all the vitamin C you need in a day.
“Stop focusing on calories and start focusing on the quality of the foods you eat. High-quality diet options are natural, whole, minimally processed foods, like vegetables, fruits, nuts or seeds that offer a lot more nutritional value in the form of vitamins, minerals, healthy fats and fiber. These foods help tame hunger naturally and nourish our cells at the deepest level so that we aren’t left with constant cravings. — Michelle Loy, MPH, MS, CSSD, Registered Dietitian Nutritionist and owner of Go Wellness in Orange County, California
New Delhi: With so many diet plans and methods out there, adopting the right forms of eating habits to lose weight can be confusing. Well, forget the expensive meal plans that claim to promote rapid weight loss, here's one easy, simple trick that can help you get rid of that stubborn belly fat and shed those extra pounds in no time. Green tea has been consumed for centuries for its immense health benefits. A growing number of studies have shown that the flavonoids and caffeine in green tea can boost metabolism, enabling the body to break down and process fat much faster.
“Whether it’s an app or paper food logs, tracking what you eat will certainly be eye-opening. Almost everyone consumes more than they think. Write everything down as soon as you’re done eating so you don’t forget anything. The simple act of recording what you eat will make you eat less. When the calories are in your face, it makes you think twice!” — Martha McKittrick, RD, CDE

Ranging from just-juice to just-tea cleanses, these typically short-term plans can be dangerous. “Detoxes and cleanses are usually low in calories, protein, and fiber, all nutrients that our bodies need to function,” says Alissa Rumsey, RD, who is in private practice in New York City. “These plans leave you feeling hungry and cranky, causing a rebound food binge once you stop the detox.”


When you want to lose weight, lunch may be the culprit that's holding you back. So often you're rushed and pressed for time—or eating at your desk. And while it may not be ideal, a rushed lunch doesn't have to send you into an afternoon slump. In fact, there are some speedy foods that are simple to throw together and can help you reach your weight-loss goal. And, guess what: you know (and probably love) all of them. These are the modern-day weight-loss superfoods.
The difference in body composition (muscle loss and dehydration), metabolic effects, and the return of weight has been reported (9, 10). In a meta-analysis study, weight return had been reported in most participants (77%), who followed WL diets (11). In a classification of diets based on calorie restrictions and speed of WL, diets are divided to rapid WL, moderate WL, and slow WL.
“A cup of blackberries has only 62 calories and is packed with fiber and phytochemicals, including powerful flavonoids and anthocyanins, which help to speed stool and toxins through your digestive system,” says Maleeff. Their high water and fiber content, plus sweet taste, make them the perfect refreshing summer weight-loss food. (These blackberry yogurt cheesecake parfaits are perfect for dessert!)
Going gluten-free may be a popular trend, but unless you're actually gluten-intolerant or have celiac disease, plenty of reasons exist to continue eating whole grains. They're a tasty way to fill up on both soluble and insoluble fiber, which help you feel full for longer and keep bowel movements regular (oats, barley, and bulgur are especially high sources). Whole grains can also help prevent weight gain: in one study, women who ate whole grains like wheat germ and dark bread had a 49% lower risk of "major" weight gain over time.
Set (and write down) reasonable expectations for what you plan to achieve during your challenge. “You can absolutely make a difference in 10 days,” says Brooke Alpert, RD, a dietitian in New York City and the author of The Diet Detox, but don’t expect to shed 20 pounds a la The Biggest Loser. “While actual weight loss will be around three to four pounds, you can really notice the difference in the way your body feels in about a week.”
Almonds, peanuts, walnuts, pistachios — at GH, we're nuts about nuts! People who snack on nuts may have lower abdominal fat than those who munch on carb-based treats, according to a 2015 study in the Journal of the American Heart Association. Nuts are rich in monounsaturated fats, a heart-healthy (and more satisfying) pick than their grain-based counterparts.

Also known as yam or yambean, this Mexican turnip is a great source of fiber, says Dr. Jaime Schehr, a registered dietitian in New York City. “This plant is great for weight loss due to its high fiber to sugar ratio (a whopping 32g of fiber per medium jimaca—that’s almost an entire day’s worth). They are also a good source of potassium, an essential mineral in maintaining water balance in our body.”
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