The glycemic and lipid profiles are shown in Table 3. Triglyceride and VLDL levels and insulin indices (FINS, HOMA-IR, and HOMA-S) showed a significant decrease in both groups. In addition, QUICKI increased significantly in both groups, yet no significant differences were shown between the 2 groups. Although the level of FBS and FINS changed significantly, especially in the rapid WL group, the drop in HOMA-B was not statistically significant. A significant reduction in LDL, FBS, and TC was seen in the rapid WL group. In addition, a significant reduction in HOMA-IR, HOMA-S, FBS, and LDL was seen in rapid WL group compared to the slow WL group.

It’s true that green tea can raise your metabolic rate, so you burn more calories, says David Nieman, Dr.PH., director of the human performance laboratory at Appalachian State University in Boone, N.C. Nieman, who has studied green tea extensively, says this effect is probably due to a combination of its caffeine and catechins—antioxidants that are plentiful in green tea and present in smaller amounts in some fruits, dark chocolate, and red wine.


Look for breads that say 100% whole wheat to make sure you getting the real deal. Ann Kulze, MD, of Charleston, S.C., author of Dr. Ann’s 10-Step Diet, A Simple Plan for Permanent Weight Loss & Lifelong Vitality, also recommends incorporating beans such as soy, lentil, chickpeas, and black beans into your diet. “They are high in fiber and protein so they’ll keep you full longer,” Kulze says.
Ladies, don't despair: Women have weight-related advantages, too. They tend to carry more body fat on their thighs and backsides (the so-called “pear” shape), which are much healthier places to hold weight than around the middle. Plus, while women are better at storing fat, they also tend to burn more body fat during exercise than men do. "The fat women find it hardest to lose is generally the least harmful to health," Katz says.
FODMAPS, or FODMAPs, or Fermentable Oligossaccharides Disaccharides Monosaccharides And Polyols, are found in a wide variety of foods that are otherwise classed as healthy but are hard to break down in the gut, leading to bloating, excessive gas and stomach pains. Foods that are high in FODMAPs and might be a good idea to avoid are garlic, onions, beans and most wheat products.
Harder et al. reported that rapid WL could significantly decrease weight, triglycerides, total cholesterol (TC), low-density lipoprotein (LDL) cholesterol, fasting blood glucose (FBS), hemoglobin A1c, and fasting serum insulin (FINS) (16). Also, Wahlroos et al. reported that a significant decrease in waist circumference, body mass index (BMI), subcutaneous abdominal fat volume, and insulin resistance occurred after rapid WL (17).
One small 2018 study published in the International Journal of Sport Nutrition and Exercise Metabolism found that matcha green tea drinks can enhance exercise-induced fat oxidation in women following a 30-minute walk. But, the authors were also quick to point out that "the metabolic effects of matcha should not be overstated" when related to weight loss.
Consequently, researchers have widely discredited the hCG diet, which involves using hCG injections, pellets, sprays, or drops, and consuming  as few as 500 calories daily. The diet is problematic not only because there’s a lack of research on hCG supplements, but also because  the calorie requirement is dangerously low, potentially leading to nutrient deficiencies, fatigue, hormone imbalances, blood clots, and other issues. Thus, most experts agree the hCG Diet is not safe for anyone, the Mayo Clinic notes. (35)
The point at which unexplained weight loss becomes a medical concern is not exact. But many doctors agree that a medical evaluation is called for if you lose more than 5 percent of your weight in six months to a year, especially if you're an older adult. For example, a 5 percent weight loss in someone who is 160 pounds (72 kilograms) is 8 pounds (3.6 kilograms). In someone who is 200 pounds (90 kilograms), it's 10 pounds (4.5 kilograms).
A myriad of different teas have been shown to aid weight loss, and green tea is no exception. In fact, a study published in The Journal of Nutrition found that after just two weeks, those who sipped four to five cups of the green brew each day, in addition to working out for 25 minutes, lost more belly fat than those who didn’t imbibe. Scientists attribute green tea’s ability to shrink waists to the beverages catechins, a type of antioxidant that hinders the storage of belly fat and facilitates rapid weight loss.
Apples contain pectin, an ingredient that naturally slows digestion and encourages feelings of fullness. Studies show that eating a whole apple with your meal (as opposed to apple juice or applesauce) is a natural appetite suppressant, helping you consume fewer overall calories without feeling deprived. Sass likes using shredded apple in slaws and stir-fry, or mixing them into burger patties to add moisture.
Kefir is a yogurt-like substance, but it actually contains less sugar and more protein than conventional yogurt while remaining packed with gut-friendly probiotics that can help you lose weight by aiding digestion. In one study, kefir displayed weight loss properties similar to those of milk and other dairy-rich products. Other probiotic-rich foods include kombucha, bone broth, and fermented items such as sauerkraut and kimchi.
The concentration of EGCG—the superpotent nutrient found in green tea—may be as much as 137 times greater in powdered matcha tea. EGCG can simultaneously boost lipolysis (the breakdown of fat) and block adipogenesis (the formation of new fat cells). One study found that men who drank green tea containing 136 milligrams of EGCG—what you’d find in a single 4-gram serving of matcha—lost twice as much weight than a placebo group and four times as much belly fat over the course of three months
If you've seen the TV show, you get the idea: Six weeks of healthy food and regular exercise is celebrated as a great start to a weight-loss journey – as well as a way prevent or reverse various diseases. Fair enough. Experts determined that the Biggest Loser Diet is very likely to help you shed pounds, thanks to calorie restriction and exercise. To reap the other benefits of weight loss, however, you have to stick with it – something that's a lot harder for average Joes than for TV stars-in-the-making.

Consistent with the current study, improvement of metabolic factors after 4 weeks of VLCD was reported in a study by Erik et al. In this study, it was found that VLCD in the short-term intervention could cause a significant reduction in the levels of blood glucose, cholesterol, and TG in a fasting condition (27). The study of Laaksonen et al. showed that administration of VLCD diet for 5 weeks improved metabolic factors and decreased cutaneous water loss and increased subcutaneous fat water. This researcher suggested that WL and consequent improved insulin sensitivity could mediate an increase in abdominal subcutaneous fat hydration (31).
If you consume green tea first thing in the morning, catechins and caffeine present in green tea can stimulate the production of gastric acid and cause stomach indigestion. One should also avoid drinking green tea in the night since it will disturb the sleep pattern. Also, if green tea is consumed just after meal it could inhibit nutrient absorption from the food. Green tea should be consumed in between meal or 30 minutes before exercise (for optimal fat loss). 

Drinking herbal teas such as green tea, white tea, black tea and rooibos tea can amp up your metabolism. According to a study in the American Journal of Clinical Nutrition, green tea is more effective than other teas like oolong at promoting weight loss because of it’s high levels of catechins. (6) So if you want to lose weight fast, I recommend drinking 1–3 cups of green tea daily.
If your favorite foods fall into the list of forbidden fruit, you’re even more likely to fall off the wagon. Giancoli gives the example of diets that cut out coffee: “It’s ridiculous. There’s a lot of research that coffee is fine. Coffee’s been redeemed.” The Mayo Clinic goes even further, saying: “Caffeine may slightly boost weight loss or prevent weight gain.”

“Eat vegetables before or with meals. Whether you are hungry on your way home or right when you walk in the door, snacking on veggies can help you keep your portions in check once you sit down to a meal. I also recommend starting your dinner with a vegetable salad or vegetable soup to fill you up and prevent overeating. — Ilyse Schapiro, MS, RD, CDN, author of  Should I Scoop Out My Bagel?


The latest nutritional research proves what you eat AND when you eat both contribute to weight loss. †† We created Rapid Results based on this revolutionary research. With Rapid Results we provide you with a plan that takes maximum advantage of your body’s natural fat-burning ability, so you lose weight faster, plus our consultants have completed new comprehensive training to deliver excellent weight loss guidance for results.
Also, men tend to lose weight where they need it most (read: belly), so it's often more immediately noticeable when overweight men start trimming down than when women do, as ladies' fat stores are typically more spread out, which is partly why they tend to lose weight at a slower pace than guys. Even basic, regular exercise -- ideally 30 to 60 minutes a day -- tends to reduce abdominal obesity, even if guys don’t technically lose weight.

Weight loss can be intentional, such as from dieting and exercise, or unintentional and be a manifestation of illness. Weight loss can result from a decrease in body fluid, muscle mass, or fat. A decrease in body fluid can come from medications, fluid loss, lack of fluid intake, or illnesses such as diabetes. A decrease in body fat can be intentionally caused by exercise and dieting, such as for overweight or obesity. Weight loss is normal after pregnancy. Other causes of weight loss include, but are not limited to, cancer, viral infection (such as CMV or HIV), gastroenteritis, parasite infection, depression, bowel diseases, and overactive thyroid (hyperthyroidism).

HCG, or Human Chorionic Gonadotropin, is a hormone produced during pregnancy by the placenta after implantation, and doctors sometimes prescribe it for fertility issues. But this hormone has also gained popularity as a weight-loss supplement — and using it as such can be dangerous. In fact, the Food and Drug Administration (FDA) warns against purchasing over-the-counter hCG, as these supplement products are illegal. (34)


Every tea has its own special weight-loss powers, but if your boat is sinking and you can only grab one package of tea before swimming to the deserted island, make it green tea. Green tea is the bandit that picks the lock on your fat cells and drains them away, even when we’re not making the smartest dietary choices. Chinese researchers found that green tea significantly lowers triglyceride concentrations (potentially dangerous fat found in the blood) and belly fat in subjects who eat fatty diets. Follow these steps to Make the Perfect Cup of Green Tea!
“Across the world, guidelines recommend gradual weight loss for the treatment of obesity, reflecting the widely held belief that fast weight loss is more quickly regained," said the first author of the paper, Katrina Purcell, of the University of Melbourne, in a press release. "However, our results show that achieving a weight loss target of 12.5% is more likely, and drop-out is lower, if losing weight is done quickly.”
Abazarfard, Z., Salehi, M., & Keshavarzi, S. (2014, May). The effect of almonds on anthropometric measurements and lipid profile in overweight and obese females in a weight reduction program: A randomized controlled clinical trial. Journal of Research in Medical Sciences: The Official Journal of Isfahan University of Medical Sciences, 19(5), 457–464. Retrieved from https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4116579/

Kale gets all the love (and it's a fantastic option, too), but if you prefer milder romaine lettuce as your salad base and it helps you eat more of it, go for it. When fruits and veggies were examined for their weight-loss potential, one that came out on top was leafy greens, per 2015 research in PLOS Medicine. Over a four-year period, eating a serving per day (that's two cups) was linked to about a half pound of additional weight lost. The veggies that helped with weight loss, like lettuce, tended to offer fiber and have a low glycemic load, which aids fullness, controls blood sugar and discourages your body to store fat, the study points out. Spinach, kale or head lettuce are other good options.


There's a reason (well actually, many reasons) why lentils are considered one of the world's healthiest foods. With 13 grams of protein and 11 grams of fiber per serving, this legume—another member of the pulse family—will keep you feeling full for hours in between meals. They're a great source of fat-burning resistant starch, too, with 3.4 grams in a half-cup serving.

Over a thousand years ago, matcha came to Japan as an aid to meditation practice. During long hours of sitting, monks would drink matcha to remain alert yet calm. Modern science has recently confirmed the lessons of centuries of tradition. Matcha is rich in L-Theanine, a rare amino acid that actually promotes a state of relaxation and well-being by acting upon the brains functioning. While stress can induce beta waves an excited, more agitated state, L-Theanine creates alpha waves, which lead to a state of relaxed alertness. And while L-Theanine is common in all tea, matcha may contain up to five times more of this amino acid than common black and green teas.

Although it’s tempting to look for a quick fix with a speedy weight loss scheme, many popular diets are unhealthy or produce only temporary results. You’ll have better luck with an eating plan that includes a variety of healthful foods and gives you enough calories and nutrients to meet your body’s needs. Taking it slow by making ongoing eating and exercise changes is the best way to reach and maintain your optimal weight.


A new player in the weight loss program space, Noom packs a lot of behavioral psychology into one sophisticated app. It aims to help you identify and break bad habits, and have some fun doing it. The powerful app echoes Weight Watchers’ successful community approach, but outleagues that program in terms of learning resources. While it’s the more expensive of our two favorite programs, it’s the richer when it comes to virtual experience — with personalized lessons, tasks, and support that made us look forward to opening up the app.


OnlinePlus provides tracking as well as community through WW Mobile’s clean and sophisticated Connect news feed, and it costs you just under $36 a month. If you like the idea of getting together IRL, Meetings+OnlinePlus costs about $77 a month. Our tester found the meetings genuinely nice, if a little cheesy. And if you need extra help, there’s a Personal Coaching option for about $107 a month. At every level of membership, you have access to a live coach via Expert Chat.
You've got 28 days to get to your goal, so we've recruited Juge to help you every step of the way. He'’s adapted a traditional bodybuilding competitor's diet for a noncompetitor (that means you!) who wants to look his best, shedding as much fat as possible in a very short time. With just under a month, there's no time to fool around, so get started on your high-protein meal plan now to lose weight and build muscle while you're at it. Go to the grocery store and stock up tonight. Come breakfast time tomorrow, follow his plan as strictly as you can and get ready to show off those impressive muscles in a month.

So while green tea might not be the lean fat-burning machine it's cracked up to be, that doesn't mean it can't be beneficial for weight loss. After all, unsweetened green tea is one of the smartest beverage picks around. It’s free of calories, fat, and sugar—definitely much better than a 140-calorie can of soda. And since it's common to confuse thirst for hunger, sipping some green tea can help keep food cravings at bay.
“There are many foods that aid weight loss, but one that I often recommend to my clients and eat myself is grapefruit. Researchers at Scripps Clinic in San Diego found that when obese people ate half a grapefruit before each meal, they dropped an average of 3.5 pounds over 12 weeks. Apparently, the tangy fruit can lower insulin, a fat-storage hormone, and that can lead to weight loss. Plus, since it’s at least 90% water, it can fill you up so you eat less. However, if you are on certain medications you should not have grapefruit or grapefruit juice, so check the label on all your prescriptions, or ask your pharmacist or doctor. — Patricia Bannan, MS, RDN, author of  Eat Right When Time is Tight.
Weight Watchers, which not only champions a sustainable diet but has sustained itself for over fifty years, is a favorite amongst nutritionists. Its practical, flexible philosophy of saving and splurging SmartPoints boils down to balancing out food choices. You can get tips, tools, and motivation by attending the traditional weekly meetings, or get the same resources through its user-friendly app. Either way, research proves that Weight Watchers’ social element supports weight loss. At about $4 a week, OnlinePlus costs about half as much as Meetings+OnlinePlus, which runs around $8 (your fees vary depending on the length of your commitment).
Ready to step it up with your Fitbit tracker and set some new health and fitness goals? That’s awesome! Cue the fireworks! But if your ultimate goal is to lose weight, unfortunately, activity alone isn’t going to get you there—you also have to change what you eat. That does not mean you need to do a cleanse or detox. But it is possible to get a jump on weight loss, the smart and healthy way. Fitbit Dietitian Tracy Morris developed this kickstart one-week meal plan to help her clients see results, fast. Disclaimers: Please don’t try to lose more than 2 pounds per week, or dip below 1200 calories per day, which can compromise your metabolism. This is not a long-term plan, so you definitely don’t want to eat this way every week. But it’s a great way to kick off a weight loss goal, with specific meal and snack ideas, so you’ll see an initial drop—and be extra motivated to keep the momentum going this year.  
In an accompanying comment, Corby Martin and Kishore Gadde write that the study shows that "a slow and steady approach does not win the race, and the myth that rapid weight loss is associated with rapid weight regain is no more true than Aesop's fable." They cite a number of potential short-term advantages of very low calorie diets and note that these diets are now well formulated and provide adequate protein and essential micronutrients. They are "safe if used under expert supervision," the write.
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.
Buy an iced tea maker. During warmer months, drinking hot tea may not sound like fun; however, you can still consume just as much tea by using an iced tea maker. Like the electric teakettle, simply fill the machine with water; add ice (according to the manufacturer’s directions) and teabags. Turn it on and begin drinking fresh iced tea in a matter of minutes.
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 lbs you’re trying to lose.” (32)
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When it comes to enjoying green tea, how you brew it can make all the difference. Be careful not to overheat the water, as boiling will damage the catechins. For best results, bring water to a boil, but let it rest for ten minutes before pouring it over the tea. Then, pour it over the tea and let it brew for a minute before pulling out the leaves and serving them. Depending on your taste, this brew time can be made longer or shorter. Some types of green tea are better for weight loss than others. Matcha tends to be the most nutritious, as you dissolve and drink the tea leaves themselves, rather than just using them to infuse your water.
The concept of "diet" tea is sort of false advertising -- any unsweetened, natural tea can promote weight loss. Certain teas may act as a laxative or fat-blocker and that's why they're marketed as such. However, laxatives just clean out your colon (you've already consumed the calories). You may lose a little bit of water weight initially, but the second you drink something, it'll come back.

Because they don’t cater to one person’s weird eating habits. They provide a general guide for normal palates. If you don’t like the food, make up your own plan. Or write up a plan for other picky eaters like yourself! Sounds like with the limited amount of food you find acceptable to eat, surely you shouldn’t be overweight. And if you rely on junky snack foods in place of these perfectly healthy AND flavorful options, nobody can help you but yourself.
It’s true that green tea can raise your metabolic rate, so you burn more calories, says David Nieman, Dr.PH., director of the human performance laboratory at Appalachian State University in Boone, N.C. Nieman, who has studied green tea extensively, says this effect is probably due to a combination of its caffeine and catechins—antioxidants that are plentiful in green tea and present in smaller amounts in some fruits, dark chocolate, and red wine.
Cheese isn’t traditionally thought of as something you consume to encourage weight management, but calcium-rich Parmesan, when eaten in moderation, can help stave off sugar cravings that can easily lead to weight gain. How does that work, you ask? The native Italian cheese contains the amino acid tyrosine (a building block of protein) which has been shown to encourage the brain to release dopamine without any unhealthy insulin spikes. What’s more? The combination of calcium and protein found in dairy products such as Parmesan has been found to increase thermogenesis—the body’s core temperature—and thus boost your metabolism.
It sounds silly, but switching which hand you eat with can save you calories, and help boost weight loss. “It takes 15 minutes for your brain to realize that you’re full,” celebrity personal trainer Jay Cardiello told us in our article 40 Weight Loss Tips for Over 40. “To give your mind time to catch up to your mouth, simply switch your fork to non-dominate hand. It may be frustrating, but it’s a simple and unnoticeable way to curb overeating and lose weight.”
Abazarfard, Z., Salehi, M., & Keshavarzi, S. (2014, May). The effect of almonds on anthropometric measurements and lipid profile in overweight and obese females in a weight reduction program: A randomized controlled clinical trial. Journal of Research in Medical Sciences: The Official Journal of Isfahan University of Medical Sciences, 19(5), 457–464. Retrieved from https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4116579/
Blueberries are lousy with antioxidants, satiating fiber, potassium, and more, and according to researchers at the University of Michigan, the colorful fruits may also encourage weight loss. In a study of laboratory rats, scientists found that after 90 days the rats who received blueberry-enriched powder as 2 percent of their diet had less abdominal fat, lower triglycerides, lower cholesterol, and improved fasting glucose and insulin sensitivity, than the rats who weren’t given any blueberry-enriched powder.
Anaerobic exercise, on the other hand, primarily uses sugar as its fuel. This doesn’t mean that it’s not good for weight loss, though. Anaerobic exercise helps build muscle, and as we explained above, this will help you burn calories even when you’re resting. Anaerobic exercises are generally high intensity, for example sprinting and weight lifting. 

A number of studies have been conducted to test the theory that green tea can help with weight loss. It's important to note that most of these studies used green tea extract, not the actual tea. Drinking regular green tea may not help you lose any weight, according to a 2012 clinical study published in Obesity, which compared the effects of drinking regular green tea and a catechin-rich green tea on weight loss in a group of men and women with type 2 diabetes. While the group drinking catechin-rich tea lost a half-pound over the 12-week study period, the group drank a lower-catechin green tea gained half a pound.
Because the diet isn’t as restrictive as a traditional vegan or vegetarian diet, it may be simpler to stick with — hence its No. 2 ranking in U.S. News & World Report’s Easiest Diets to Follow category. Because you’ll be eating meat some of the time, you may also be at a lower risk of the aforementioned nutrient deficiencies that vegetarians and vegans may face.

Electrolytes play a major role in keeping us alive since they provide the electrical current that allows our muscles, particularly the heart, to contract at the right speed. When there is a sudden decrease of food intake, there is also a sudden decrease in the electrolytes that our bodies are used to getting, particularly potassium and magnesium. If the body can’t handle the deficit, this can lead to impaired cardiovascular function and irregularities such as heart arrhythmias.
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