A scoop of guacamole is one of the most effective fat-burning, hunger-squashing snacks known to man. Not only are avocados rich in vitamin B6—which directly counteracts the belly-fat-building stress hormone, cortisol—they’re also full of monounsaturated fat. This healthy fat may actually prevent body fat distribution around the belly by down-regulating the expression of certain fat genes, according to research in the journal Diabetes Care. These same satiating fats may also be the reason behind another study that found people who ate half a fresh avocado with lunch reported a 40 percent decreased desire to eat for hours afterward.
Belly fat, or visceral fat, is an especially harmful type of fat that sits around your organs. The first 2 weeks of belly fat loss are the most important, because changes to diet and exercise can result in relatively large weight loss in a short time. Learn the truth about how the body stores and removes belly fat, then adjust your lifestyle for maximum fat reduction.

Use an adult energy needs calculator to estimate your calorie intake needs; then subtract the 500 to 1,000 calories for weight loss. For example, a 28-year-old woman who is 5 foot, 9-inches tall weighs 175 pounds and is lightly active -- less than an hour a day -- burns about 2,400 calories daily. She'll burn about 2 pounds of fat in a week if she eats 1,400 calories daily, or 1 pound a week if she eats 1,900 calories a day.
Don’t let extra hours lounging in bed stand between you and a flatter stomach. 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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