"Crash diets (dramatically cutting down how much you eat) might help you to lose a few pounds at first, but they’re hard to sustain and won’t help you keep the weight off. It might seem like a quick and easy option, but eating too few calories can actually do more harm than good. If your calorie intake dips too low, your body could go into starvation mode. This will slow down your metabolism, making it harder for your body to lose weight. Make sensible, healthy changes to your lifestyle that you can stick to and avoid the fad diets."
Research has shown that with intermittent fasting, blood pressure is reduced, levels of sugars and fats in circulation are improved, and inflammation, an indicator of heart disease risk, can be limited. Every week there is a day when you are eating a reduced amount of calories compared to the other days, to achieve this. He has dieters follow a specific four-week eating plan, including some days where the calorie count is about 1,600, and other days where it is 900. (The average caloric intake for women is about 1,800 a day; for men, 2,500, according to government statistics).
Too little sleep or too much sleep can throw your stress and regulatory hormones out of whack, and may lead to weight gain. A single night of sleep deprivation can increase levels of ghrelin (a hormone that promotes hunger), making you more likely to overeat the next day. Reduced sleep may also lead to fatigue during the day (duh) and less physical activity, which may be another reason why people who regularly don't get enough sleep tend to gain weight.
The trick here is not only to avoid all obvious sources of carbohydrate (sweets, bread, spaghetti, rice, potatoes), but also to be careful with your protein intake. If you eat large amounts of meat, eggs and the like, the excess protein will be converted into glucose in your body. Large amounts of protein can also raise your insulin levels somewhat. This compromises optimal ketosis.
We’re not saying it’s CGI or Photoshop that’s responsible for creating these onscreen bodies. Rather, it’s a secret, weeklong get-shredded strategy that separates people who make their living with their bodies from guys like us who just want to eat popcorn and watch them dodge bullets. The movie stars, the underwear models, the pro bodybuilders—they don’t look like that all the time. They can’t. But when it’s go time, they’re ready with Hollywood’s biggest get-shredded secret.
Which leads us to point number two: If you want to lose belly fat, you'll need to lose weight. If you stick to the following plan, you won't have to lose as much weight as you might think because your body will burn more fat for energy, but still. Reducing your body fat percentage will require losing some weight. Don't go into this thinking you won't have to lose weight, because that's the surest way to fail.
It’s possible you’ve lost significant fat already with foods like milk, wheat bread, and artificial sweeteners in your diet, but for the next week, cut these out entirely—even if you don’t think you have an intolerance to them. Even the slightest irritation to your digestive system can cause bloating and water retention, so eliminate the risk completely. Dairy and gluten appear in numerous condiments (soy sauce, salad dressings, some brands of barbecue sauce, etc.), so to avoid a potential problem, read labels and control your intake as much as possible. Season your food with condiments such as sea salt, salsa, and balsamic vinegar instead.
Avoid sweetened drinks. Drinks that are sweetened, whether artificially or naturally, will have little nutritional value and add lots of empty calories to your diet. Do not drink fruit juice or other sweetened drinks. Even natural sugars will increase your daily calorie intake and prevent weight loss. If you chose to drink juice, do not exceed 4 oz per day (1/2 cup). Instead of drinking sweetened beverages throughout your day, drink unsweetened, calorie-free beverages. Some beverages to avoid include:
You can blame biology for your sweet tooth. We’re hardwired to have a preference for sweets, and this drive is universal and begins early on, according to research on the subject. Sugar makes food taste good, so food companies add it to everything from breads to soups to salad dressings to cereals, yogurts and more. This adds up to way too much sugar!
Close the Kitchen at Night. Establish a time when you will stop eating so you won't give in to the late-night munchies or mindless snacking while watching television. "Have a cup of tea, suck on a piece of hard candy or enjoy a small bowl of light ice cream or frozen yogurt if you want something sweet after dinner, but then brush your teeth so you will be less likely to eat or drink anything else," suggests Elaine Magee, MPH, RD, WebMD's "Recipe Doctor" and the author of Comfort Food Makeovers.
Getting more fiber into your diet, especially soluble fiber found in oats, chia seeds, legumes, vegetables, and fruits, can help reduce fat accumulation in the abdominal area. Psyllium husk is another great source of fiber—and has zero calories. Fiber swells up with water, increasing the bulk of your stomach contents and giving you a feeling of fullness. It also reduces fat absorption from food by binding with bile acids required for the digestion of dietary fats. Fiber can also bind with sugars and other carbohydrates, delaying or reducing their absorption into the bloodstream.
Count calories and macros. You’ll need to track calories and macros (grams of fats, protein and carbs) religiously, at least for the first month. First, use this calculator to determine your body fat percentage- and don’t suck in your gut when you measure your waist. Then, use this calorie calculator (be sure to select the lean mass formula) to determine your Total Daily Energy Expenditure.
Don’t let extra hours lounging in bed stand between you and a flatter belly. While getting enough sleep can help boost your metabolic rate, sleeping in may undo any benefit you’d enjoy from catching a few extra winks. One Obesity study reveals that late sleepers who snoozed past 10:45 in the morning ate nearly 250 more calories over the course of the day, despite eating half as many fruits and vegetables as their early bird counterparts. Even worse, they chowed down on more salty, sugary, and trans-fat-laden fast food than those who woke up earlier. If you happen to head out of the house early, you’re in for an additional metabolic boost; researchers at Northwestern University have found that people exposed to just a short period of early morning sunlight had lower BMIs than their late-waking counterparts.