Many doctors recommend that even women on the pill who do not have noticeable deficiencies in Vitamin E benefit from taking Vitamin E supplements as it helps prevent cardiovascular disease. Vitamin E is a fat-soluble vitamin and is beneficial for pill users as the oestrogens in the pill hinders the livers ability to metabolise fat soluble vitamins. These levels can drop even further when combined with stress, caffeine and smoking. Vitamin C is contained in foods such as strawberries, green peppers, broccoli, citrus fruits, cantaloupe and alfalfa sprouts. Zinc can be found in dark green vegetables, whole-grains, brewers yeast, seafood and pumpkin seeds.
Supplements are also beneficial.
This article only touches on what is a very complex issue.