1. When you roll out of bed
Eat (a good) breakfast Every. Single. Day.
If you don't, your body goes into starvation mode (it's paranoid like that), so your metabolism slows to a crawl to conserve energy, Berardi says. And the heartier your first meal is, the better. In one study published in the American Journal of Epidemiology, volunteers who got 22 to 55 percent of their total calories at breakfast gained only 1.7 pounds on average over four years. Those who ate zero to 11 percent of their calories in the morning gained nearly three pounds. In another study published in the same journal, volunteers who reported regularly skipping breakfast had 4.5 times the risk of obesity as those who took the time to eat.
What should you be having? Morning munchies that are slow to digest and leave you feeling fuller longer. Try a mix of lean protein with complex carbohydrates and healthy fats, like this power breakfast, recommended by Berardi: an omelet made from one egg and two egg whites and a half cup of mixed peppers and onions, plus a half cup of cooked steel-cut oats mixed with a quarter cup of frozen berries and a teaspoon of omega-3-loaded fish oil.
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Sip java
Sisterhood of the traveling spill-proof mugs, rejoice! A study published in the journal Physiology & Behavior found that the average metabolic rate of people who drank caffeinated coffee increased 16 percent over that of those who drank decaf. Caffeine stimulates your central nervous system by increasing your heart rate and breathing, says Robert Kenefick, Ph.D., a research physiologist at the U.S. Army Research Institute of Environmental Medicine. Honestly, could there be a more perfect beverage?
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Guzzle your water cold
Chase your morning joe with an ice-cold glass of H2O. Researchers at the University of Utah found that volunteers who drank eight to 12 eight-ounce glasses of water per day had higher metabolic rates than those who quaffed only four glasses. Your body may burn a few calories heating the cold water to your core temperature, says Madelyn Fernstrom, Ph.D., founder and director of the University of Pittsburgh Medical Center Weight Management Center. Though the extra calories you burn drinking a single glass doesn't amount to much, making it a habit can add up to pounds lost with essentially zero additional effort.
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2. When you're at work
Pick protein for lunch
Cramming protein into every meal helps build and maintain lean muscle mass. Muscle burns more calories than fat does, even at rest, says Donald Layman, Ph.D., professor of nutrition at the University of Illinois. Aim for about 30 grams of protein -- the equivalent of about one cup of low-fat cottage cheese or a four-ounce boneless chicken breast-at each meal.
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Brew up some green tea
"It's the closest thing to a metabolism potion," says Tammy Lakatos Shames, R.D., author of Fire Up Your Metabolism: 9 Proven Principles for Burning Fat and Losing Weight Forever. The brew contains a plant compound called ECGC, which promotes fat burning. In one study, people who consumed the equivalent of three to five cups a day for 12 weeks decreased their body weight by 4.6 percent. According to other studies, consuming two to four cups of green tea per day may torch an extra 50 calories. That translates into about five pounds per year. Not bad for a few bags of leaves, eh? For maximum effect, let your tea steep for three minutes and drink it while it's still hot.
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Undo damage with dairy
Hey, it happens. There are days when no salad on earth can possibly overcome the seductive power of French fries. But you can make up for it with a calcium-rich afternoon snack, like eight ounces of milk or six ounces of low-fat yogurt. Calcium helps your body metabolize fat more efficiently by increasing the rate at which it gets rid of fat as waste (yes, that kind), reports a study from the University of Copenhagen. Sorry, supplements don't have the same effect.
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3. When you go food shopping
Choose organic produce
You wouldn't fill your car engine with pesticides, right? Hell, no. Researchers in Canada found that dieters with the most organochlorides (chemicals found in pesticides) stored in their fat cells were the most susceptible to disruptions in mitochondrial activity and thyroid function. Translation: Their metabolism stalled. Can't afford a full organic swap? Go to foodnews.org/fulllist for the most (and the least) contaminated foods, then adjust your shopping list accordingly.
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Seek heat
It turns out capsaicin, the compound that gives chili peppers their mouth-searing quality, can also fire up your metabolism. Eating about one tablespoon of chopped red or green chilies boosts your body's production of heat and the activity of your sympathetic nervous system (responsible for our fight-or-flight response), according to a study published in the Journal of Nutritional Science and Vitaminology. The result: a temporary metabolism spike of about 23 percent. Stock up on chilies to add to salsas, and keep a jar of red pepper flakes on hand for topping pizzas, pastas, and stir-fries.
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Grab some metal
Women lose iron during their period every month. That can throw a wrench into your metabolic machine, because iron helps carry oxygen to your muscles. If your levels run low, muscles don't get enough O2, your energy tanks, and your metabolism sputters, Shames says. Stock up on iron-fortified cereals, beans, and dark leafy greens like spinach, bok choy, and broccoli.
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4. When you work out
Mix things up with intervals
You're always looking for a way to shorten your workout, right? Well, step up your intensity and you'll burn the same number of calories or more in less time. In one Australian study, female volunteers either rode a stationary bike for 40 minutes at a steady pace or for 20 minutes of intervals, alternating eight seconds of sprints and 12 seconds of easy pedaling. After 15 weeks, those who incorporated the sprints into their cardio workouts had lost three times as much body fat-including thigh and core flab-compared with those who exercised at a steady pace. Bursts of speed may stimulate a fat-burning response within the muscles, says lead researcher Ethlyn Gail Trapp, Ph.D. 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.
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Texting lingo consists mainly of acronyms and phonics, which reduce the number of letters needed to write a comprehensible message. For example, the word 'you' is shortened to 'u' and "talk to you later" is simply "TTYL."
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