If you're postmenopausal, don't consume prenatal vitamins. Because of the benefits of these supplements for nails and hair, many woman take them. Though this might be safe, post-menopausal women can receive too much iron by taking them.
It is not a good idea to just buy a bottle of the cheapest vitamin/mineral supplement you can find on the shelf. Many of these supplements are made with chemical substitutes of the natural nutrient you need. Before you invest your money in any supplement, do your research so you can make a wise decision.
Magnesium is necessary for over 300 chemical reactions in the body. Foods high in fiber contain magnesium, including legumes, vegetables, nuts and whole grains. This mineral is used to treat high cholesterol, ADHD, fatigue, migraines, PMS and multiple sclerosis. Magnesium can also be applied topically to speed up healing.