As you get older, dark circles may start appearing under your eyes. While they make you look tired or older than you are, these dark circles are caused by a number of factors, not just age or lack of sleep. Heredity, hormones and allergies may also be the cause (and your doctor can help you determine which).
Vitamin K helps with one common cause: the leaking of capillaries around the eyes, which results in the pooling and clotting of blood. Researchers believe that vitamin K aids in the constriction of capillaries, breaking up the tiny blood clots that form the circles. Vitamin K likely won't be a cure-all for under-eye circles, but getting your fair share of this vitamin should be part of your treatment plan.
Your body produces small amounts of vitamin K on its own, but you can use more than your body can provide. Vitamin K can be consumed as a supplement, as part of a multi-vitamin, in the form of topical creams or (ideally) through your diet. Kale, lettuce, spinach and broccoli are all excellent sources of vitamin K, as are non-hydrogenated vegetable oils.
As we age, our bones begin to lose structural strength, due to reduced levels of ossification (an ongoing process through which bone replaces itself). Vitamin K has been shown to help aging seniors maintain bone strength.
The next vitamin we'll discuss helps fight the effects of aging both inwardly and outwardly.