Vitamin A maintains the sexual hormone function in men and women and keeps skin from becoming dry and itchy. It's also good for men's sperm.

     B complex increases the levels of testosterone, the fuel of the sex drive, in both men and women. It keeps the thyroid, nervous system and adrenal glands content.

    Vitamin C keeps the skin smooth and supple, helps prevent miscarriages, keeps sperm from clinging together in immobile clusters, and enables you to enjoy more intense, longer-lasting orgasms. Recent studies suggest that vitamin C should be taken as a part of a multi-vitamin and not independently.

    Vitamin E helps the blood carry energizing oxygen, prevents cells from oxidizing, nourishes the pituitary gland, offsets the loss of estrogen in post-menopausal women and keeps testosterone from breaking down in men. Nuts, seeds, whole grains, fruits and vegetables are all good sources for Vitamin E.

    Zinc is essential for the production of testosterone. Low levels may reduce your sperm count, potency, sex drive and long-term sexual health. Insufficient zinc in women may cause dryness of the vagina.