Here's a secret: slaving away inside your body to help you burn calories and shed fat. It's called your metabolism, and it's the sum of everything your body does. Each time you eat, enzymes in your body's cells break down the food and turn it into energy that keeps your heart beating, your mind thinking, and your legs churning during a grueling workout. A fast metabolism means more calories burned. The more you burn, the easier it is to drop pounds. And get this—you can make increase you metabolism so it works harder, a lot harder, 24 hours a day.
WHEN YOU GO FOOD SHOPPING
Choose organic produce
Whether you ride, run, or row, try ramping things up to rev your burn: Start by doing three eight-second all-out, can't-talk sprints with 12 seconds at an easy pace between each effort. Work your way up until you can do 10 sprints over 20 minutes.
Combining regular exercise with fish-oil supplements increases the activity of your fat-burning enzymes, reports a study published in the American Journal of Clinical Nutrition. Look for brands containing at least 300 milligrams of the fatty acid EPA and 200 milligrams of the fatty acid DHA per capsule. Pop two of these two hours before your workout.
Eat fish like salmon, tuna, and sardines are loaded with hunger-quashing omega-3 fatty acids. A 3.5-ounce serving of salmon nets you 90 percent of your recommended daily value of vitamin D, which will help preserve your precious calorie-craving, metabolism-stoking muscle tissue.