Winter time is quite often flu season. The results of many clinical trials have shown that while vitamin C does not prevent a cold, its use can slightly reduce the severity of cold symptoms and may somewhat reduce the duration of the cold. Higher doses of vitamin C do not provide any extra benefit. Pectin, a fiber found in citrus, is known to significantly lower blood cholesterol levels. Potassium protects against sodium-induced elevation of blood pressure.
Orange juice helps replenish electrolytes in children with diarrhea.
Folic acid, in addition to protecting against neural tube defects, has been shown to have antioxidant properties. Adequate amounts of folic acid can decrease the risk of rectal, cervical and other cancers. Folate deficiency is associated with an impairment in the number and lifetime of white blood cells. While marginal folic acid intake is very common in the U.S., orange juice can provide 100 micrograms of folic acid per 8 oz. serving. Other good sources of folic acid include fresh green leafy vegetables, oatmeal and legumes.