Veins carry blood returning to the heart. A varicose vein is one that has become enlarged and swollen; the condition usually occurs in the legs, where circulation is most difficult. It is unlikely that optimum nutrition can do much for veins that are already varicose; however, adequate vitamins C and E as well as other antioxidants can help to prevent further occurrences. Also, there is some evidence that a high-fibre diet can help to prevent varicose veins.
Regular exercise, especially swimming, will improve the circulation. Putting your feet up and gentle leg massages are all helpful. Application of vitamin E cream is beneficial.