GUSTOIMAGES / SCIENCE PHOTO LIBRARY GUSTOIMAGES / SCIENCE PHOTO LIBRARY
Evening primrose capsules. These capsules, filled with oil from the evening primrose (Oenothera sp.), are a popular supplement. They contain the fatty acid GLA (gamma linolenic acid), which the body converts into hormone-like substances. These appear to decrease cholesterol levels, reduce inflammation and regulate the female reproductive system. Evening primrose oil is thought to help premenstrual tension, breast tenderness, alcoholism and eczema. Side effects are rare but the supplement should not be taken by epilepsy sufferers.
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