What Are the Health Benefits of Leeks?
Vitamin A: Not Only for EyesA close relative of onions and garlic, leeks have a mild onion-like flavor that works well in soups and a variety of other dishes. One cup of leeks — approximately one whole leek — contains just 54 calories, so leeks add bulk to your meal to keep you feeling full, without significantly boosting your calorie intake. Leeks serve as excellent sources of vitamins, and also offer health benefits thanks to their phytonutrient content.
Adding leeks to your diet helps ensure that you meet your recommended daily intake of Vitamin A. A single one-cup serving of leeks boasts 1,484 international units of vitamin A — 64 percent of the daily intake for women and 49 percent for men, set by the Institute of Medicine. Getting enough vitamin A in your diet supports healthy blood cell development, including the growth of new red blood cells that transport oxygen, and white blood cells that fight infection. Vitamin A also helps your retinas — the tissues in your eyes that detect light and color — to function under low-light conditions.
Vitamin K for Blood and Bones
Leeks also provide a generous amount of vitamin K. Vitamin K benefits every tissue in your body, helping to regulate blood flow, while low vitamin K levels can induce bleeding, which can negatively affect your circulation. Getting enough vitamin K also activates osteocalcin, which is a protein essential for bone health. Leeks contain 42 micrograms of vitamin K per cup. This provides 47 percent of the daily vitamin K intake for women and 34 percent for men, set by the Institute of Medicine.
Lutein and Zeaxanthin Protect Your Vision

Consume leeks as a source of lutein and zeaxanthin. These compounds contribute to healthy eyesight. They protect your eye tissues from oxidative damage — harmful oxidation of your DNA and cell membranes — by filtering out harmful light rays as they enter your eye. The American Optometric Association also notes that lutein and zeaxanathin, when consumed in adequate amounts, protect you from cataracts and age-related macular degeneration. The AOA recommends 12 milligrams of lutein and zeaxanthin daily to reap these benefits, and each cup of leaks contains 1.7 milligrams, or 14 percent of this goal.

By Louise Tremblay


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