I am currently anemic and an athlete (runner)and taking a multivitamin to counteract that b/c I have been struggling because of the anemia.
Use of this web site constitutes acceptance of the LIVESTRONG.COM LIVESTRONG.com may earn compensation through affiliate links in this story. If your multivitamin contains calcium, this can reduce the absorption of calcium from your calcium supplement because the more calcium you take at one time, the less your body absorbs. However, if you take niacin supplements A caveat: This interaction has only been studied in those who currently have coronary artery disease (CAD). Antibiotics can be affected by the supplements you take, and they can affect your ability to absorb certain vitamins and minerals. Some individuals should avoid certain combinations of dietary supplements. https://www.nhs.uk/.../most-multivitamins-and-supplements-are-waste-money Low levels of vitamin B12 can lead to megaloblastic anemia, a condition in which the red blood cells are unusually large, but decreased in number. Calcium supplements are concentrated doses of calcium and may limit how much zinc your body can absorb from your multivitamin. If you opt to take multivitamins, the It is not known if this interaction holds true if you do not have CAD.Vitamin B12 and folate are both commonly prescribed supplements, with the latter being especially important during pregnancy. Use of this web site constitutes acceptance of the LIVESTRONG.COM Don’t use calcium, zinc, or magnesium supplements at the same time. Take your multivitamin and calcium supplement at different meals or different times in the day to enhance absorption of both minerals.As you get older, your absorption of vitamin D, calcium, iron, zinc and magnesium decreases. She is a member of the National Association for Family Child Care and contributes to various websites. The mineral calcium is also important for heart health.There is some controversy around this conclusion, however. Older adults, those following a vegan diet and individuals with gastrointestinal disorders are encouraged to take a B12 supplement.

Nutrition experts agree: A balanced diet provides all the necessary nutrients for most healthy people.However, the dietary supplement industry is booming. LIVESTRONG.com may earn compensation through affiliate links in this story. A close-up of vitamins in a pill organizer.

Remember the closer the amount gets to 500mg, the less your body will absorb because this is the maximum amount of calcium your body can take in at one time.Some multivitamins contain iron. This is the amount of calcium that is available for your body to absorb.
Always follow your doctor's advice about any dietary supplements if you take blood thinning medication.Iron-deficiency anemia is the most common type of anemia and develops when you're not getting enough iron-rich foods, per the Dietary supplements vary widely when it comes to the nutrients they provide, as well as the dosage of those nutrients. If your doctor recommends a vitamin K supplement, avoid taking high dosages of vitamin E, which may counteract the effects of vitamin K, according to This is particularly important to keep in mind for those taking blood thinning medications, such as warfarin. This will increase your iron absorption.Calcium may interfere with zinc absorption, especially in postmenopausal women. Copyright © Jill Corleone is a registered dietitian with more than 20 years of experience. Leaf Group Ltd. If your multivitamin contains calcium, this can reduce the absorption of calcium from your calcium supplement because the more calcium you take at one time, the less your body absorbs.