To stay healthy during cold and flu season, be sure you're getting enough vitamin E.

Vitamin E may help ward off upper respiratory infections. In a study of older people, those who took a vitamin E supplement every day had fewer colds than those who didn't receive the supplement. Vitamin E is an antioxidant vitamin that strengthens the immune system.

Vitamin E is an antioxidant vitamin that not only helps strengthen the immune system, but also helps fight aging by keeping blood vessels clear and protecting against vision problems, such as macular degeneration and cataracts. Nuts, sweet potatoes, and avocados all contain vitamin E. However, most foods generally contain only small amounts of vitamin E. Although it's best to get your daily vitamin E through your diet, most people need to take a supplement to ensure they get the RealAge Optimum dose of 400 IU per day.

RealAge Benefit: Getting 400 IU of vitamin E per day can make your RealAge as much as 1 year younger.

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