You should already be following a diet to get lean, and should therefore be aware of how much you’re eating. But to remove any guesswork, we’ll give you some numbers to hit for the week: Consume one gram of protein and 10–11 calories for every pound of your body weight; 20% of those daily calories should be from fat, and the remainder from carbs. (Remember to first subtract the protein calories you’re also eating from the total allowed before you calculate the number of carbs.)

We often make the wrong trade-offs. Many of us make the mistake of swapping fat for the empty calories of sugar and refined carbohydrates. Instead of eating whole-fat yoghurt, for example, we eat low- or no-fat versions that are packed with sugar to make up for the loss of taste. Or we swap our fatty breakfast bacon for a muffin or donut that causes rapid spikes in blood sugar.
If we had a dollar for every well-intentioned person who's centered his or her fat-burning efforts around low- to moderate-intensity cardio sessions, we could make Fort Knox our summer retreat. This "I'm trying to lose weight, so I'm just doing cardio" attitude has become epidemic, as people waste countless hours on ellipticals, treadmills, and stationary bikes, with very little to show for it. The results they're after, of course, are washboard abs and an overall leaner physique, which is best accomplished through high-intensity lifting at appreciable volumes.
You’ll start each cardio day with Tabata-timed cardio. The HIIT protocol that follows calls for sprinting “on the minute,” meaning that your sprints and active rest will always add up to a minute. You’re free to choose your method of cardio, but treadmill running has been shown to burn more calories than cycling. In the first workout, perform 10 all-out 12-second sprints, with 48 seconds of active rest. This will amount to 120 seconds of total sprinting. The next time out, do more: 11 sprints at 13 seconds each, with active rest diminishing by a second. You can expect a similar uptick in volume each cardio session.
If you're specifically looking to target your belly, we have some bad news: you can't spot-target fat loss. That means you can do crunches or planks all day long, but you won't specifically burn belly fat. Instead, you can lose body fat overall, including from your belly. And by avoiding certain belly-bloating foods and with some strategic exercise, you will inevitably see results in your belly.
That means taking in fewer calories than you burn. That means making healthier choices. That means ... well, you know what that means. You know what you should eat. We all do. White flours and white sugars are the enemy. Foods like white breads, cookies, white pasta, white rice, and white potatoes are out. (The same is true for "white fats" like butter and full-fat cheese.)
"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."
Drink at least 2 liters (0.53 US gal) of water each day. Water has the double effect of both hydrating your body and filling your stomach with a certain volume of a liquid that has zero calories. The Institute of Medicine determined that an adequate intake (AI) for men is roughly 3 liters (0.8 US gal) (about 13 cups) of total beverages a day. The AI for women is 2.2 liters (about 9 cups) of total beverages a day.[12]
Anything that contains sensitive information (name, address, social security numbers, account numbers, etc.) that you no longer need, and that you want to keep out of the hands of thieves or “dumpster divers.” These documents could include old utility invoices, bank statements, medical records, credit card offers and old tax documents (older than 7 years), just to name a few.
Nuts. It’s very easy to eat until the nuts are gone, regardless of how full you are. A tip: According to science, salted nuts are harder to stop eating than unsalted nuts. Salted nuts tempt you to more overeating. Good to know. Another tip: Avoid bringing the entire bag to the couch, preferably choose a small bowl instead. I often eat all the nuts in front of me, whether I’m hungry or not.
World-class weight-loss expert and author of Shred: The Revolutionary Diet Dr. Ian Smith refers to this new diet as his secret weapon because it works unlike anything else he’s seen. As its name implies, the Shred Diet isn’t only about weight loss — it’s about reshaping your body and changing the way your clothes fit. In only six weeks, Dr. Smith claims this plan can help you lose up to 4 inches, 2 sizes and, incredibly, up to 20 pounds!
It can actually help you cut back on calories. That's because capsaicin, a compound found in jalapeño and cayenne peppers, may (slightly) increase your body's release of stress hormones such as adrenaline, which can speed up your ability to burn calories. What's more, eating hot peppers may help slow you down. You're less likely to wolfed down that plate of spicy spaghetti — and therefore stay more mindful of when you're full. Some great adds besides hot peppers: ginger and turmeric.
While many people turn to artificial sweeteners in a misguided attempt to whittle their waistlines, those fake sugars are likely to have the opposite effect. According to Yale researchers, artificial sweeteners are actually linked with an increased risk of abdominal obesity and weight gain, possibly because they can trigger cravings for the real stuff and spike insulin levels in a similar fashion to real sugar.
No matter how many ab workouts you do, they won't help you reduce belly fat. Instead of focusing on spot reduction — targeting one specific area on your body — you've got to train your entire body, fuel up with nutritious foods, and make sure that you're recovering (nope, all-nighters won't help) to lose fat in general. And losing body fat all over means you will be losing some on your belly as well. 

Try not to eat when you feel upset or bored — find something else to do instead (a walk around the block or a trip to the gym are good alternatives). Many people find it's helpful to keep a diary of what they eat and when and what they are feeling. When you have to write it down, you might think twice before eating cookies. Reviewing the diary later can also help them identify the emotions they have when they overeat.
The sad truth is that conventional ideas – eat less, run more – do not work long term. Counting calories, exercising for hours every day and trying to ignore your hunger? That’s needless suffering and it wastes your time and precious willpower. It’s weight loss for masochists. Eventually almost everyone gives up. That’s why we have an obesity epidemic. Fortunately there’s a better way.
To encourage ketone production, the amount of insulin in your bloodstream must be low. The lower your insulin, the higher your ketone production. And when you have a well-controlled, sufficiently large amount of ketones in your blood, it’s basically proof that your insulin is very low – and therefore, that you’re enjoying the maximum effect of your low-carbohydrate diet. That’s what’s called optimal ketosis.
Weight loss ultimately comes back to the concept of calories in, calories out: Eat less than you burn and you’ll lose weight. And while it’s possible to lose water weight quickly on a low-carb diet, I certainly wouldn’t advocate for it. The diet itself can trick you into thinking that this eating style is working — when really, you might gain back what you lost as soon as you eat carbs again. That can feel incredibly dispiriting if you want results that last longer than a week.
1 Reference for 5%: Blackburn G. (1995). Effect of degree of weight loss on health benefits. Obesity Research 3: 211S-216S. Reference for 10%: NIH, NHLBI Obesity Education Initiative. Clinical Guidelines on the Identification, Evaluation, and Treatment of Overweight and Obesity in Adults. Available online: http://www.nhlbi.nih.gov/guidelines/obesity/ob_gdlns.pdf Cdc-pdf[PDF-1.25MB]External
During this cleanse, you’ll still eat your four meals and three snacks, but you’ll make additions to help stimulate detox. Every morning for breakfast, have a cup of lemon water with flaxseed oil to help fight inflammation. You’ll also consume one cup of hibiscus tea and one cup of 100% cranberry juice daily. Full of antioxidants, these drinks will help your body fight off harmful free radicals. To aid in cleansing your liver, avoid alcohol this week.
"When we’re lacking in sleep, our body’s hormones get thrown off balance which can impact our hunger levels the next day. We all have two hormones that affect our appetite: ghrelin and leptin. When we don’t get enough sleep, our ghrelin levels (the hormone that makes us feel hungry) rise, and our leptin levels (the hormone that makes us feel full) drop. This means that when we’re awake, we tend to eat more but feel less satisfied. Try going to bed a little earlier than usual to avoid this imbalance and remember to remove any distractions that might prevent you from nodding off."
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