Are Multivitamin Supplements Really Essential to Your Health?
Multivitamin supplements can be a good way to get the vitamins you need, especially if your own diet doesn't give you all the nutrients you need. That said, of course, multivitamin supplements can't do everything and won't replace the benefits of a healthy diet in general; they will simply fill in gaps for those times when you just can't quite eat right.
Multivitamin supplements include vitamins as well as minerals. The minerals included are important to everyday health, and many people can be deficient in them. They include magnesium, iron, calcium and zinc. Multivitamin supplements also contain many different vitamins, as listed below.
Vitamin A is found in most multivitamin supplements. It's rare to be deficient in vitamin A unless you are elderly. However, vitamin A is necessary for your immune system to function at its best, and it is sometimes recommended to prevent certain types of birth defects or to prevent bone loss. However, vitamin A can be toxic in large doses, so it should never be taken to excess.
Beta-carotene is another supplement found in multivitamin supplements. It functions as an antioxidant and can also increase white blood cell count; it also boosts your immunity. Beta-carotene and vitamin A also are important to eye health.
Folic acid is an especially important nutrient during pregnancy and is included in prenatal multivitamin supplements. If you are deficient in folic acid during pregnancy, your baby can have a low birth weight and will also be at increased risk of neural tube defects, such as spina bifida.
The B vitamin family has quite a few members, with most included in multivitamin supplements. Folic acid is one of these, and pyridoxine is another. Vitamin B12 and pyridoxine help control the levels of homocysteine in the blood. Homocysteine, when high, can contribute to strokes, heart disease, and Alzheimer's disease. Vitamin B12 can help fight anemia, heart disease and memory loss. Vitamin B1, or thiamine, is important for proper brain function. Niacin, also called vitamin B3, is a preventative for a disease called pellagra. Although pellagra is relatively rare, it can occur in someone who is deficient in niacin; people suffering from pellagra have inflamed mucous membranes, mental confusion, diarrhea, and scaly sores on the skin.
Vitamin C boosts the immune system and is an antioxidant, and also helps keep skin healthy; it also helps to heal wounds and prevent scar formation.
Vitamin D is essential to proper absorption of the mineral calcium. A deficiency of vitamin D can lead to bone loss, fractures, and a disease called rickets, which can result in severe bone pain. Though vitamin D can be manufactured by the human body from exposure to sunlight, it is included in multivitamin supplements too because the deficiency can be so painful. However, that doesn't mean that you should take mega doses of it.
Some multivitamin supplements also contain vitamin K. Vitamin K deficiency can lead to bleeding, easy bruising, and brittle bones, or osteoporosis.
Calcium is among the mega minerals that are important to good health, and is found in many multivitamin supplements. Along with vitamin D and vitamin K, it's necessary to your diet in order to maintain adequate bone mass. You need enough calcium in your diet or through multivitamin supplements for good health, and it also reduces the risk of fracture in bones for older people.
Multivitamin supplements can provide more than 100% of the recommended daily allowance of some vitamins, but in most cases, it's not safe to consume very large amounts of any vitamin or mineral by itself. The levels included in multivitamins are usually safe, but if you take too many supplements in individual form and too much of them, extremely large doses could be unsafe.
Theoretically, your diet is supposed to be sufficient to provide 100% of your recommended daily allowance of the basic vitamins and minerals, but the person who eats a balanced diet with adequate vitamins and minerals every single day is rare in today's fast-paced world. There are many multivitamins available, and it may take some research to decide which kind is best for you. If you start taking a multivitamin supplement and experience any side effects, it is a good idea to stop taking them and see if the problem goes away. If so, you should ask your doctor to recommend a multivitamin supplement.
There are about a dozen different vitamins and minerals recognized as important for humans to consume. If you are shortchanged on any of them for a significant amount of time, you could begin to experience deficiency symptoms. And again, multivitamin supplements can prevent these types of deficiencies, but are still no substitute for a healthy diet and lifestyle, one that includes good nutritious food and exercise, too.
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