While maintaining good habits during the day—eating well, exercising regularly—are crucial for weight loss, resting at night is just as important for keeping off the pounds. In a study published by Plos One journal last year, researchers found that people who skimped on sleep were more likely to have higher body mass indexes and larger waist circumferences than those who got adequate shut-eye.
Digestive metabolism, or thermic effect of food (TEF): Simply digesting food—turning carbs into sugar and turning protein into amino acids—typically burns 10 to 15 percent of your daily calories. Digesting protein burns more calories than digesting carbohydrates or fat—about 25 calories for every 100 consumed. Digesting carbohydrates and fat burns about 10 to 15 calories for every 100 consumed.
These fatty acids rocketed to fame for their ability to decrease the harmful inflammation that is associated with many chronic diseases—including obesity. Crandall is quick to point out that researchers have yet to find a cause-and-effect link—so don’t expect to pop a fish oil supplement, for example, and drop 10 pounds. But, she says, getting omega-3s from whole foods such as nuts, seeds, and fatty fish like salmon is a good way to hedge your bets. And bonus: If you’re suffering from other kinds of inflammation, that can lessen your willingness to be active, omega-3s might help there, too. Find out the fat-burning foods you should add to your diet.

The sugar contained in fruit is called fructose. Many people have come to believe that fructose is bad for you and will promote fat gain. This is simply not true. Fructose metabolizes differently than other types of sugar but it is still a great choice for carbohydrates. Fructose will restore liver glycogen levels quickly and muscle glycogen stores slowly. Although fructose is technically a sugar it does not cause a spike in blood sugar like many other sugars. This makes fruit and excellent choice for daily consumption.
Vary your daily calories while reducing your overall average. Your body may adjust to a lower but steady calorie intake, meaning it won’t draw from your stored fat. To keep your body guessing and your metabolism up, try switching between higher and lower daily calorie intakes. This might help avoid that dreaded weight-loss plateau and improve your willpower.[2]
The general rule is to set protein intake per pound of LEAN MASS. But the problem is, figuring this out can be both time-consuming and troublesome, not forgetting hardly accurate. Using per pound of bodyweight is easier and tends to work pretty well for leaner folk. However, it doesn’t work as well for people who have more fat to lose (20% + body fat for men and 30% + for females).
Protein. Deciding how much protein to eat at each meal is simple. Take the total protein you are supposed to consume during the day and divide it evenly among the essential eating times. Let’s say, for example, you are supposed to be eating 200 grams of protein per day. Since there 5 essential eating times you just need to divide 200 by 5. This means that you will need to take in 40 grams of protein at each meal.
People often think that low-intensity exercise, in which your body taps into fat metabolism, is the most efficient way to lose body fat. Some cardio machine displays even claim that you’re in the fat-burning zone when your heart rate is low and that you exit the zone once your heart rate rises. Physiologically, the second part of that statement isn't true. 
Since doing cardio exercise is not as interesting as other exercises, people think it’s the only way to lose weight. But because it can get rather boring, people stop putting in the effort to lose weight altogether. The good news is, there are other ways to burn fat without having to spend long hours on the treadmill. The best way to reap the benefits of cardio is to incorporate it with weight-training.
Every expert ever will tell you that crash diets don’t work, are unhealthy, and offer at best a temporary fix since you may end up gaining back more than you initially lost once you fall off the wagon. But that doesn’t mean losing weight has to be a slow, torturous process either. Yes, you’ll still have to eat few calories than you burn, but nutrition and exercise researchers have uncovered some scientifically tested ways to make that easier and faster than ever.
Weight training is the ultimate way to burn calories fast. "A pound of muscle burns up to nine times the calories of a pound of fat," explains Richard Cotton, M.A., chief exercise physiologist for myexerciseplan.com. Weight training increases your resting metabolic rate, which is the number of calories you burn while sitting on your butt. What's more, it gives your metabolism an added boost after you exercise, staying in overdrive for up to two hours after the last bench press, according to a study published in Medicine & Science in Sports & Exercise. Strapped for time? Try these quick moves: squats, bench step-ups, lunges, push-ups, pull-ups and planks. In a pinch, just do single sets of 10 for each exercise — you'll get optimal results for the time invested.
Add resistance training. A 2006 study published in the International Journal of Sport Nutrition and Exercise Metabolism suggests that combining cardiovascular (aerobic) exercise with resistance training is more effective than cardiovascular training alone in getting rid of abdominal fat.[11] You can do resistance training with free weights, exercise machines or resistance bands and it may also be useful to train from unstable positions due to increased muscle activity.
The researchers hypothesize that participants who abstained from animal products dropped significantly more pounds since plant-based foods include loads of filling fiber and slow-to-digest complex carbs. Though more research is needed to confirm these results, the study authors write, "Vegetarian diets appeared to have significant benefits on weight reduction compared to non-vegetarian diets."
I built this protocol for people who simply won’t take my advice to be patient and eat the Bulletproof Diet while using Bulletproof Intermittent Fasting. It uses biohacking techniques I pioneered on myself to reduce – but not eliminate – the risks of rapid fat loss. It prevents the metabolic harm and brain fog that come with very low-calorie diets (or multiple day fasts), and it does everything I can think of to maintain health in the face of additional toxins.  This is also not intended for people who are already fairly lean (10-14% body fat).  It is designed for obese and severely overweight people who want to lose fat as fast as possible.
Repeat after us: It’s time to start eating clean. She recommends a combination of veggies, fruit, whole grains, nuts, seeds, beans, low-fat dairy and lean protein like poultry, eggs and fish for a dose of omega-3 fatty acids. And drop the added sugar while you’re at it. “Studies show that when you have a diet rich in whole grains — and calorie-controlled — that you can reduce the belly fat,” she says. But remember to watch your portions, too. “A lot of people eat very healthy and don’t eat junk, but their portions are too large.”
When trying to build and maintain muscle mass, adequate protein intake is a must. The best choices for protein are lean animal proteins. Protein that is not derived from an animal source is that it is considered an incomplete protein. This means that it lacks certain essential amino acids necessary to build muscle. Here are some of the best choices choices for protein:
Over the past five or six days of this protocol, you’ve been in deep ketosis and burning only fat, but you haven’t had to be particularly calorie restricted. In order to reset leptin levels and prevent a large drop in energy levels, you need to re-feed. Contrary to our normal recommendations, you need to pound down the carbs. When it comes to normalizing leptin levels, fat has no effect, while carbs are going to send them sky high.

Glycogen is the unused and stored form of carbohydrates in muscles. When glycogen stores begin to peak from eating plenty of carbs, the body upgrades its fat-storing ability. Conversely, as glycogen stores are depleted, fat-burning increases. One way to kick-start the fat-burning process is to go extremely low-carb on two consecutive days every couple of weeks. This ensures that you tap into your glycogen stores for fuel, which signals the body to burn more fat.
Research also shows that workouts involving high-intensity interval training (HIIT) can help reduce excess fat around your middle. Besides working your core, try incorporating a day or two of more vigorous exercise into your weekly schedule. (You can start with these three beginner routines.) Keep in mind that you can lower your total body fat percentage even by moving around more at work, according to another study.

To avoid starvation the body will lower leptin levels and lower energy expenditure in an attempt to slow down the rate of fat loss. As stated before, leptin is a primary fat burning hormone, low levels of it will spell disaster for any fat loss plan. There is a way to keep leptin levels elevated though. This can be accomplished through controlled high carb days. High carb days will keep leptin levels high and the metabolism running efficiently.
It's easy to overdo it when you're eating something delicious — and that's why it's good to focus on foods that will force you to slow down. "Slowing down can help you check in with your hunger levels. For that reason, I love snacking on 100-calorie packs of in-shell pistachios," Gorin says. "Shelling the pistachios helps you slow down your snacking, and the shells leave a visual cue to remind you of how much you've eaten. Because you're more in tune with what's gone into your mouth, you may be less likely to have extra servings." In one preliminary study, people snacking on in-shell pistachios ate 41% less calories than those who ate the shelled version.

For even more impressive effects on body composition: aim for exercise forms which elicit a positive hormonal response. This means lifting really heavy things (strength training), or interval training. Such exercise increases levels of the sex hormone testosterone (primarily in men) as well as growth hormone. Not only do greater levels of these hormones increase your muscle mass, but they also decrease your visceral fat (belly fat) in the long term.
A University of Michigan study found that lab rats who nommed on a diet enriched with powdered blueberries had less abdominal fat after 90 days than rats who ate a standard diet. The researchers suspected that blueberries are so good at targeting belly fat because of their high levels of phytochemicals, a naturally occurring antioxidant. FYI, blueberries are also an excellent source of fibre.

Carbohydrates are essential to keeping a fast metabolism. Leptin and other fat burning hormones are directly related to carbohydrate intake and body fat levels. Leptin is a fat burning hormone that serves many functions. One of the most important functions is the control of energy expenditure. When food intake, and most notably carb intake is high, leptin levels will be high. This sends signals to you body that it is in a fed state and this can cause your metabolism to remain high.
Do more HIIT: High intensity interval training (HIIT) is as close to a magic pill as we have (except it involves a whole lot more work than just swallowing a capsule—sorry). Not only does it surge your body to max intensity during the workout, but because you’re working so hard, your body can’t deliver enough oxygen in the moment, explains personal trainer Jeremey DuVall. Your muscles accumulate a “debt” of oxygen that then has to be repaid post-workout. This throws your body into a phase of fat burning for hours after you’re done sweating, known as post-exercise oxygen consumption, or EPOC. Plus, super intense circuits like this activate muscle-building hormones like growth hormone and IGF-1, he adds.
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