10. Turn off the TV.
Scientists at the University of Massachusetts found that people who watch TV during a meal consume, on average, 288 more calories than those who don't eat with the tube on.
11. Put your fork down when you chew.
Or take a sip of water between each bite—eating slowly can boost levels of two hormones that make you feel fuller, Greek researchers found.
12. Choose rye (not wheat) bread for breakfast toast.
Swedish researchers found that rye eaters were more full 8 hours after breakfast than wheat-bread eaters, thanks to rye's high fiber content and minimal effect on blood sugar. As a result you'll want to snack less and eat less for lunch. For more healthy breakfast ideas, see our list of Best Breakfast Sandwiches.
13. Eat a handful of fruit and vegetables a day.
In one study, people who ate four or five servings scored higher on cognitive tests than those who consumed less than one serving. (Remember: Salad isn't always the healthy choice. Check out 20 Salads Worse Than a Whopper to see what I mean. You'll be shocked.)
14. Sip green tea.
It might help you build a strong skeleton, say researchers in China, and help protect you from broken bones when you're older. And one study found that it helps fight bad breath, too.
15. Work out before lunch or dinner.
Doing so will make the meals you eat right afterward more filling, according to British researchers—meaning you'll eat fewer calories throughout the day.
16. Hung over? Choose asparagus.
When South Korean researchers exposed a group of human liver cells to asparagus extract, it suppressed free radicals and more than doubled the activity of two enzymes that metabolize alcohol. That means you'll feel like yourself again twice as quickly.
17. Sleep 8 hours a night.
Too much or too little shut-eye can add extra pounds, say Wake Forest University researchers. Not there yet? Try these 7 simple strategies for longer, deeper sleep.
18. Discover miso soup.
Brown wakame seaweed (used in miso soup) can help lower your blood pressure, especially if your levels are already high, say researchers at the University of North Carolina.
19. Drink two glasses of milk daily.
People who drink the most milk have about a 16 percent lower risk of heart disease than people who drink the least. (I recommend nonfat or 1 percent milk.)
20. Take a zinc supplement.
Just 15 milligrams of zinc a day (the amount found in a Centrum Ultra multivitamin, for example) will motivate your immune cells to produce more of a protein that fights off bacterial infections.
21. Go ahead, eat your favorite foods.
Good eating doesn't need to be about deprivation—it's about making smart choices. Why eat a 1,000-calorie cheeseburger if a 500-calorie burger will satisfy you just the same? The bottom line: Eat foods that you enjoy, just not too much of them.
22. Choose foods with the fewest ingredients.
There are now more than 3,000 ingredients on the FDA's list of safe food additives—and any of these preservatives, artificial sweeteners and colorings and flavor enhancers could end up on your plate. Do you really know what these chemicals will do to your waistline or health? Of course not. Here's a rule of thumb: If a 7-year-old can't pronounce it, you don't want to eat it.
23. Snack on popcorn.
In a 2009 study, people who ate 1 cup of microwave popcorn 30 minutes before lunch consumed 105 fewer calories at the meal. Just choose the kind without butter.
24. Or snack on walnuts.
Eating a handful of walnuts each day may boost your HDL (good) cholesterol fastest, while lowering your LDL (bad) cholesterol.
25. Scramble your breakfast.
People who ate eggs in the morning instead of a bagel consumed 264 fewer calories the rest of the day, according to a Saint Louis University study. That's because protein is more filling than carbs.