The phrase “slow carb” is anything but sluggish when it comes to blasting fat. Slow carbs are digested slowly, which keeps you feeling fuller and energized longer—and sweet potatoes are one of them. Among the magic ingredients here are carotenoids, antioxidants which stabilize blood-sugar levels and lower insulin resistance, which helps your body efficiently convert calories to energy rather than stored as fat. And their high vitamin profile (including A, C, and B6) give you more energy to burn at the gym.
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.