This citrus fruit is an immunity-boosting all-star. One medium grapefruit contains nearly 80% of the daily recommended intake of vitamin C. Plus, the pink flesh is packed with vitamin A and plenty of filling fiber. Even better—one serving is only 60 calories.
You’ve probably topped a salad with dried cranberries but never thought to put the lower-sugar, real-fruit variety on your grocery list. But you should. In their raw form, cranberries contain only 4g of sugar per one-cup serving, versus the 18g of sugar that come with a quarter-cup serving of dried cranberries. Fresh cranberries are high in vitamin A, which helps maintain healthy eyesight and healthy skin. They are also believed to help lower LDL, or bad, cholesterol.
Again, these guys probably don't make frequent appearances into your shopping cart, but they’re worth grabbing. "These fruits manage to pack a lot of fiber into their tiny size, so they’re filling and will keep us fuller longer," says New York-based Tanya Zuckerbrot, M.S., R.D. "They’re also rich in vitamin A, which promotes healthy eyesight and helps prevent night blindness.”
These fuzzy little fruits contain as much potassium as a banana, but with half the calories. Potassium helps manage blood pressure by keeping electrolytes balanced. “Kiwis are a waist-friendly nutritional powerhouse," notes Zuckerbrot. "They contain twice as much vitamin C as oranges, and are a great source of antioxidants in the form of vitamin E." One cup of kiwi fruit contains over 270% of the daily-recommended dosage of vitamin C, which helps fight free radicals.
Even if they're too sour for a snack, lemons are the ultimate winter powerfruit. “Rich in vitamin C, lemons promote healthy blood vessels, gums, skin, and teeth," says Zuckerbrot. "They also boost the immune system." Squeeze some fresh lemon juice into your water or green tea in the morning to boost energy and fend off colds and the flu.