Thing is, there’s no reason you shouldn’t be in on the secret, too. Whether you’re planning a last-minute vacation, or auditioning for latest action movie there’s a method you can follow to get as lean and hard as possible, so your muscles look like they’ve been shrink-wrapped by your skin. Follow these seven steps to get “the body” for your big moment.

Why does HIIT training work better than conventional cardio for fat loss? When you do cardio at the same pace, your body adjusts itself to the workload and tries to conserve calories. (After all, your body doesn't know how long or hard you plan to work out.) Interval training forces your body to burn more calories -- and tap into fat stores -- because it has no choice. Science says so: One study at Laval University found people who performed HIIT cardio lost nine times more fat than people who performed moderate cardio at a consistent speed.
NASM-certified personal trainer Sydney Eaton, head of fitness and programs at PK Coin App, said that high-intensity interval training, or HIIT, can also be an effective way to burn fat fast. "I've seen many clients achieve desirable results in a very short amount of time with [HIIT]," Sydney told POPSUGAR. For your cardio days, you could opt to do HIIT in the form of sprints on the treadmill or a 20-minute no-equipment HIIT workout.

Falling short on zzz’s is also a surefire way to put your waistline in jeopardy. That’s because sleep deprivation knocks your hunger hormones out of whack, leading to an increase in ghrelin, which stimulates appetite, and a decrease in leptin, which signals when you are satiated. What’s more, research has shown that when you aren’t well-rested, you’re also more likely to reach for junk food (hello Ben & Jerry’s!)—and it may even become harder for you to build muscle mass.


There’s a reason everyone harps on about protein: Not only does it help keep you full, but it’s also responsible for repairing the tiny tears caused by strength training in your muscles. This helps them grow bigger and stronger, nudging out body fat in the process. As a general rule of thumb, aim to get at least 70 grams of protein throughout the day, says Dr. Cheskin. (These high-protein foods can help you reach that goal.)
After your last training session (Wednesday, in this example, two full days before Saturday’s event), eat two to three grams of carbs per pound of body weight for the rest of the day. If you train at night and it’s hard to eat enough carbs before bed, you can split up the total and eat the rest of the carbs on Thursday night. Insulin sensitivity remains high for 48 hours post- workout, so glycogen will still go to your muscles. Otherwise, on Thursday, go back on the diet prescribed in Step 2.
How does it work? The Shred Plan is based on “diet confusion.” This principle is modeled after a similar strategy in exercise called muscle confusion, which is used to help break through plateaus of muscle growth. When you do the same types of exercises at the same times, your muscles acclimate to the stress and your progress stagnates. Muscle confusion dictates that people work their muscles in different ways for varying durations of time. By “confusing” your muscles, you can trigger their sustained growth and continue to move toward your fitness goals.
Another strategy to keep your metabolism off-kilter is to take your body on a calorie roller coaster. As you start off the Shred Diet at Week 1, you’ll slowly reduce your calorie intake. This will be a difficult uphill battle — the steep climb of the roller coaster. Luckily, this effort is only short-term; halfway through the diet, around Week 3, you get to bring the calories back. As you glide down the roller coaster’s hill, you can indulge in your favorites like pizza and pasta (in healthy moderation), and your metabolism will run overtime. This roller coaster of calorie consumption is the perfect metabolic recipe for shedding fat. 
While no single food can "spot train" belly fat, some smart swaps can also improve gut health (eliminating cramps and gas!) and help you feel less puffy. Veggies, fruits, seeds, nuts, fish, whole grains, and other smart choices loaded with fiber and protein will keep you fuller longer, all while working their nutrient-powered magic. When it comes to healthy eating and weight loss, these plant-based foods loved by registered dietitians have your back.
After your last training session (Wednesday, in this example, two full days before Saturday’s event), eat two to three grams of carbs per pound of body weight for the rest of the day. If you train at night and it’s hard to eat enough carbs before bed, you can split up the total and eat the rest of the carbs on Thursday night. Insulin sensitivity remains high for 48 hours post- workout, so glycogen will still go to your muscles. Otherwise, on Thursday, go back on the diet prescribed in Step 2.
Burn more energy as heat. Expose yourself to cold temperatures regularly to make your body burn off more energy as heat. Drink ice water, take cold showers, keep your bedroom cool, or hold an ice pack to your upper back. Eating spicy foods also makes you produce more heat- having a slice of cold cut meat sprinkled with cayenne pepper right before a cold shower can significantly accelerate fat burning.
There’s a reason why protein takes center stage in many popular diet plans: it helps you feel full and stokes your metabolism enough to help you avoid the typical one or two pounds most adults gain each year. Your body burns slightly more calories after eating protein compared with fats or carbs, and protein from food also helps keep your muscles from deteriorating as you age. (Strength-building exercise is another important part of this process.) In order to get these benefits, you need to include protein at each meal, and getting adequate amounts of protein at breakfast — about 20 grams — is especially important. Making a beeline for the bagels or cereal means your body misses a key opportunity to rebuild muscle tissue, which naturally breaks down as you sleep. If this is your morning routine, your muscle mass will start to decline, and that means your metabolism will slow down. So skip the AM pastries and other carb-rich fare, and opt for an omelet or smoothie made with Greek yogurt or protein powder, instead.
At any given time, there are dozens of weight-loss hypes in the marketplace that claim to take off 10 pounds in 10 days, or whatever. Desperation can tempt us to try anything — from "clean eating" to cutting out food groups entirely. Keep in mind: Just because an avocado-kale-salad dripping in coconut oil is deemed "clean" by a so-called "expert" on your Instagram feed does not make it an unlimited food. Moral of the story? Avoid fads, eat real food, watch some Netflix, and unwind (perhaps with a glass of wine in hand). Now that's my kind of detox.
Another option is to drop carbohydrates in the evening. You need carbs for energy to make it through the day, but you don't need them to sit on the couch and watch movies at night. If this approach affects your sleep, try eating low-carb early in the day and having your carbs in the evening instead. You'll still end up eating fewer carbs than if you were having them at every meal.
After your last training session (Wednesday, in this example, two full days before Saturday’s event), eat two to three grams of carbs per pound of body weight for the rest of the day. If you train at night and it’s hard to eat enough carbs before bed, you can split up the total and eat the rest of the carbs on Thursday night. Insulin sensitivity remains high for 48 hours post- workout, so glycogen will still go to your muscles. Otherwise, on Thursday, go back on the diet prescribed in Step 2.
It’s natural for anyone trying to lose weight to want to lose it very quickly. But evidence shows that people who lose weight gradually and steadily (about 1 to 2 pounds per week) are more successful at keeping weight off. Healthy weight loss isn’t just about a “diet” or “program”. It’s about an ongoing lifestyle that includes long-term changes in daily eating and exercise habits.
NASM-certified personal trainer Sydney Eaton, head of fitness and programs at PK Coin App, said that high-intensity interval training, or HIIT, can also be an effective way to burn fat fast. "I've seen many clients achieve desirable results in a very short amount of time with [HIIT]," Sydney told POPSUGAR. For your cardio days, you could opt to do HIIT in the form of sprints on the treadmill or a 20-minute no-equipment HIIT workout.
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.
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