U.S. researchers estimate that an 18 percent tax on pizza and soda can push down U.S. adults' calorie intake enough to lower their average weight by 5 pounds per year.

Light to moderate alcohol consumption, especially red wine, is not only good for a woman's heart, it's also good for her waistline, according to a study reported Monday.

An initiative to get sugary drinks out of U.S. schools has begun to work, with diet beverages and smaller portions replacing some full-size, full-calorie varieties in school vending machines, organizers said on Monday.

What if steaks were healthier than strawberries, and ice cream a better weight-loss tool than carrots? It's time to rethink what you know about the food you eat.

Vitamin D is vital in activating human defenses and low levels suffered by around half the world's population may mean their immune systems' killer T cells are poor at fighting infection, scientists said.

He drops pounds overnight, but you gain weight just by glancing at a doughnut. Here are seven of his habits you should steal.

Food-borne illnesses, such as E. coli and salmonella, cost the United States $152 billion annually in health care and other losses, according to a new report.

Surgeon General Regina Benjamin, who has weathered some harsh criticism about her own weight, wants to make one point very clear: success can’t be measured by clothing size alone. She talks to msnbc.com about her vision for a fit nation.

A moment on the lips, forever on the hips? A bad figure is hardly the worst of it. Eating a lot of fat, especially the kind that's in cookies and pastries, can significantly raise the risk of stroke for women over 50, a large new study finds.

Experts worry that "The Biggest Loser" focuses too heavily on competitive weight loss — a focus that is at best, counterproductive and, at worst, dangerous.

Jillian Michaels has been sued for alleged false advertising by a woman who claims she was duped into buying a diet supplement endorsed by the celebrity trainer.

The price of losing weight for 22-year-old Thomas Ferraro is about $300 a month. That's how much he pays for Nutrisystem to ship low-cal meals to his doorstep. The food is shelf stable, meaning it doesn't go bad for months even without refrigeration.

First lady Michelle Obama launched a nationwide campaign Tuesday to fight childhood obesity, part of her effort to teach America's children about better nutrition and exercise.

People who drink two or more sweetened soft drinks a week have a much higher risk of pancreatic cancer, an unusual but deadly cancer, researchers reported on Monday.

Certain foods can be a dieter's downfall. By cutting out just one vice, you can reshape your body.

The Food and Drug Administration may update serving sizes for foods like chips, cookies and ice cream to reflect how Americans really eat.

Overweight people may want to vacation in the mountains rather than at the beach — and not just to avoid putting on a swimsuit.  A new study finds obese people lose weight at high altitudes.

Many processed foods contain too much salt, and sauces, spreads, and processed meats are the top offenders, new research shows.

These strategies ensure you will wake up refreshed and recharged, remain alert throughout the day, and wind down just in time for a good night's sleep.

The thought of suing a restaurant because of how much salt their meals contain may seem a little extreme. But the fact is, the food and restaurant industry is hiding a lot of secrets, and it's up to you to defend your health (and your waistline) against their false promises.

Your plates, pantry, and yes, your lightbulbs, may hurt your efforts to lose weight.

Lounging in front of the tube not only eats up hours in your day, it may also shorten your life, according to a new study.

You don't need to skimp on flavor in order to eat healthy. TODAY nutritionist Joy Bauer shares tasty options to help you stick to your diet.

Like many people, you may have woken up feeling fat, bloated, and mad at yourself for overdoing it while celebrating the holidays. Here's how to make a fresh start.

If kids ruled the world, they would  have pizza, burgers and chips for breakfast, lunch and dinner. Here, TODAY nutritionist Joy Bauer cooks up healthy, kid-approved alternatives to common junk foods.

A study of meals from 10 restaurant chains including Ruby Tuesday and Wendy's found calorie counts averaging 18 percent more than the values listed by the restaurants.

Flipping the switch and making a lifestyle change is the easy part. Look at any health club in January, after all, and you'll see plenty of new faces. The hard part is what comes next.

Forget the deprivation diet and marathon workouts. New research shows that taking baby steps — not giant leaps — is the best way to get lasting results.

Power up your diet by expanding your menu.

A man drinks a glass of goop made to look like fat in a new video released by the New York City health department as part of a campaign to curb the consumption of sugary beverages.

When you’re sweating through an intense workout, you probably reach for a sports drink to  rehydrate your body.  But which beverage is right for you?