4. Beware of 100-calorie snack packs. “These tend to be high in sugar and low in protein, so they don’t fill you up,” Ziltzer says. “Instead, they spike insulin, a hormone that builds fat.” For example, a 100-calorie pack of mini chocolate chip cookies has 1 g of protein and 8.5 g of sugar. A cup of edamame, on the other hand, packs 17 g of protein and 3 g of sugar for 189 calories. Another reason to cut down on sugar: It can help control symptoms of PMS, the NIH notes.
If you’ve got weight to lose and you want it gone fast, try swapping out your usual proteins in favor of fish. Not only is fish lower in calories than an equivalent amount of beef or chicken, a study published in Obesity reveals study subjects who added omega-3 fatty acids, like those found in fish, to their diets shed more weight and had an easier time keeping it off than those who skipped them.
The scale is not necessarily your friend. You may want to lose fat – but the scale measures muscles, bone and internal organs as well. Gaining muscle is a good thing. Thus weight or BMI are imperfect ways to measure your progress. This is especially true if you’re just coming off a long period of semi-starvation (calorie counting), as your body may want to restore lost muscles etc. Starting weight training and gaining muscle can also hide your fat loss.

It turns out the easiest trick to lose belly fat can be done in seconds. The expert advice? Stand up straight and adjust your posture. This simple trick to lose belly fat works because the abdominal muscles use energy to keep us upright. When you slouch, you put these muscles to sleep, meaning they can't burn belly fat. "Correcting poor posture can make you look 5 pounds slimmer instantly," strength and conditioning specialist Deborah L. Mullen told Prevention.
Here's something else most people probably don't know: Fidgeting is good for you. It's considered a nonexercise physical activity, and it's an important way to burn energy. You get more health benefits if, in addition to exercising, you are a more fidgety, more active person the rest of the day. This means gesturing while you're talking, tapping your foot, just moving around.
Eat polyunsaturated fats. While saturated fat leads to the body's retention of visceral fat, causing abdominal girth and excessive weight gain, studies have shown that a diet high in polyunsaturated fat helps promote the production of muscle mass instead of body fat.[8] Polyunsaturated fats can also help reduce cholesterol levels in the body, lowering the risk of stroke and heart disease.[9] Sources of polyunsaturated fats include:[10]
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 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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