What is a dietary supplement? Dietary supplements are substances you might use to add nutrients to your diet or to lower your risk of health problems such as osteoporosis or arthritis. Dietary supplements come in the form of pills, capsules, powders, gel capsules and tablets, extracts, or liquids. They might contain vitamins, minerals, fiber, amino acids, herbs or other plants, or enzymes. Sometimes, the ingredients in dietary supplements are added to foods and drinks. A doctor’s prescription is not needed to buy dietary supplements. Should I take a dietary supplement?
Eating a variety of healthy foods is the best way to get the nutrients you need. However, some people may not get enough vitamins and minerals from their daily diet. When that’s the case, their doctors may recommend a dietary supplement to provide missing nutrients.
If you are thinking about using dietary supplements:
Learn. Find out as much as you can about any dietary supplement you might take. Talk with your doctor, pharmacist, or a registered dietitian. A supplement that seemed to help your neighbor might not work for you. If you are reading fact sheets or checking websites, be aware of the source of the information. Could the writer or group profit from the sale of a particular supplement? Read more about choosing reliable health information websites. Remember. Just because something is said to be “natural” doesn’t mean it is safe or good for you. It could have side effects. It might make a medicine your doctor prescribed for you either weaker or stronger. It could also be harmful to you if you have certain medical conditions. Tell your doctor. Before deciding to start taking a dietary supplement to treat any health condition, check with your doctor. Do not take a supplement to try to diagnose or treat any health condition without first checking with your doctor. Learn how medications can interact with dietary supplements. For more information, visit the National Center for Complementary and Integrative Health. Buy wisely. Choose brands that your doctor, dietitian, or pharmacist recommend. Don’t buy dietary supplements with ingredients you don’t need. Don’t assume that more is better — it can actually be harmful to take too many supplements or those with a very high concentration of a nutrient. It is possible to waste money on unneeded supplements. Check the science. Make sure any claim about a dietary supplement is based on scientific proof. Look for the United States Pharmacopeia (USP) verified mark. USP verifies the identity, quality, strength, and purity of supplements. Information on some dietary supplements is available on healthwiseusa, but it’s important to note that most supplements listed have limited evidence of any benefit. If something sounds too good to be true, it probably is. Be a savvy consumer. Some advertisements for dietary supplements in magazines, online, or on TV promise that some of these products will make you feel better, keep you from getting sick, or even help you live longer. It’s important to know that often, there is little, if any, science supporting these claims.
Dietary supplements for older adults
People over age 50 may need more of some vitamins and minerals than younger adults do. Your doctor or a dietitian can tell you whether you need to change your diet or take a vitamin or mineral supplement to get enough of these:
Calcium: Calcium works with vitamin D to keep bones strong at all ages. Bone loss can lead to fractures in both older women and men. Calcium is found in milk and milk products (fat-free or low-fat is best), canned fish with soft bones, dark-green leafy vegetables like kale, and foods with calcium added, such as breakfast cereals. Vitamin D: Most people in the United States consume less than recommended amounts of vitamin D. Talk with your doctor about adding vitamin D-fortified milk and milk products, vitamin D-fortified cereals, and fatty fish to your diet, or using a vitamin D supplement. Vitamin B6: This vitamin is needed to form red blood cells. It is found in potatoes, bananas, chicken breasts, and fortified cereals. Vitamin B12: This helps keep your red blood cells and nerves healthy. While older adults need just as much vitamin B12 as other adults, some have trouble absorbing the vitamin naturally found in food. If you have this problem, your doctor may recommend that you eat foods like fortified cereals with this vitamin added, or take a B12 supplement. Strict vegetarians and vegans are at greater risk of developing vitamin B12 deficiency because natural food sources of vitamin B12 are limited to animal foods. Talk with your doctor about whether taking a B12 supplement is right for you.