domingo, 20 de marzo de 2011

25 Ridiculously Healthy Foods 16 to 20


16. Sweet Potatoes
One of the best ways to get vitamin A—an essential nutrient that protects and maintains eyes, skin, and the linings of our respiratory, urinary, and intestinal tracts—is from foods containing beta-carotene, which your body converts into the vitamin. Beta carotene–rich foods include carrots, squash, kale, and cantaloupe, but sweet potatoes have among the most. A half-cup serving of these sweet spuds delivers only 130 calories but 80% of the DV of vitamin A. Replace tonight’s fries with one medium baked sweet potato (1,096 mcg) and you’re good to go—and then some.


17. Garlic
Garlic is a flavor essential and a health superstar in its own right. The onion relative contains more than 70 active phytochemicals, including allicin, which studies show may decrease high blood pressure by as much as 30 points. High consumption of garlic lowered rates of ovarian, colorectal, and other cancers, according to a research review in the American Journal of Clinical Nutrition. Allicin also fights infection and bacteria. British researchers gave 146 people either a placebo or a garlic extract for 12 weeks; garlic takers were two-thirds less likely to catch a cold.
The key to healthier garlic: Crush the cloves, and let them stand for up to 30 minutes before heating them, which activates and preserves the heart-protecting compounds, according to a 2007 study from Argentina.



18. Red Peppers
Citrus fruits get all the credit for vitamin C, but red peppers are actually the best source. Vitamin C may be best known for skin and immunity benefits. Researchers in the United Kingdom looked at vitamin C intake in 4,025 women and found that those who ate more had less wrinkling and dryness. And although getting enough vitamin C won’t prevent you from catching a cold or flu, studies show that it could help you recover faster.
Vitamin C has other important credentials too. Finnish researchers found that men with low levels were 2.4 times likelier to have a stroke, and Australian scientists recently discovered that the antioxidant reduces knee pain by protecting your knees against arthritis



19. Figs
When you think of potassium-rich produce, figs probably don’t come to mind, but you may be surprised to learn that six fresh figs have 891 mg of the blood pressure-lowering mineral, nearly 20% of your daily need—and about double what you’d find in one large banana. In a recent 5-year study from the Netherlands, high-potassium diets were linked with lower rates of death from all causes in healthy adults age 55 and older. Figs are one of the best fruit sources of calcium, with nearly as much per serving (six figs) as 1/2 cup of fat-free milk.
Serve by chopping and adding to yogurt, cottage cheese, oatmeal, or green salads. Or enjoy them as a savory snack: Cut a slit in the side and stuff with 1/2 teaspoon of a low-fat version of a soft cheese such as chèvre or Brie.




20. Blueberries
Blueberries may very well be the most potent age-defying food—they’re jam-packed with antioxidants. When researchers at Cornell University tested 25 fruits for these potent compounds, they found that tangy-sweet wild blueberries (which are smaller than their cultivated cousins) packed the most absorbable antioxidants. Research shows a diet rich in blueberries can help with memory loss, prevent urinary tract infections, and relieve eyestrain.
Add up to 1/2 cup of blueberries to your diet a day for maximum health benefits, recommends Ronald Prior, PhD, adjunct professor of food science at the University of Arkansas in Fayetteville. This alone provides just about double the amount of antioxidants most Americans get in 1 day.

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