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  1. Multivitamin Side Effects: Common, Severe, Long Term

    Apr 27, 2024 · Learn about the side effects of multivitamin, from common to rare, for consumers and healthcare professionals.

  2. Multivitamin Side Effects: Timespan and When to Be Concerned

    Dec 14, 2020 · This article discusses whether you should be concerned about taking multivitamins. It reviews the potential side effects of multivitamins and which ingredients may cause them.

  3. Multivitamins - Uses, Side Effects, and More - WebMD

    Taking multivitamins by mouth doesn't reduce the risk of heart disease or prevent heart -related events such as heart attack in people with heart disease. Death from any cause. Taking...

  4. Dangerous Side Effects and Risks of 8 Popular Supplements

    Oct 30, 2025 · Supplements offer some health benefits, but also come with risks and side effects. More than 50% of adults in the United States use dietary supplements. 1 However, supplements aren't …

  5. Multivitamins: Supplement Uses, Warnings, Side Effects, Dosage

    What are the side effects of multivitamins? Common side effects of multivitamins include: This is not a complete list of all side effects or adverse reactions that may occur from the use of this drug. Call …

  6. Multivitamins and Megavitamins - Special Subjects - Merck Manual ...

    Large doses of beta-carotene, vitamin E, and possibly vitamin A in multivitamins or megavitamins can increase the risk of death. Multivitamins and megavitamins containing large amounts of vitamin A or …

  7. 7 Side Effects of Taking a Multivitamin Every Day - Eat This Not That

    Jul 12, 2023 · To learn more about what happens when you take a multivitamin every day, we talked with expert doctors and dietitians about the positive and negative side effects that may occur. But, …

  8. 8 Side Effects Of Multivitamins Need To Know Before Taking

    Sep 4, 2025 · Here we have mentioned both common and uncommon side effects of consuming Multivitamins. 1. Agitation is a state of nervous excitement or anxiety. This is found in people taking …

  9. Can Taking a Multivitamin Have Side Effects? What You Need to Know

    Oct 30, 2025 · Discover if taking a multivitamin can have side effects. Learn about potential risks like GI issues and nutrient toxicity, and how to choose a safe, high-quality supplement for your needs.

  10. Multivitamins Uses, Side Effects & Warnings - Drugs.com

    Oct 5, 2025 · Multivitamins are used to provide vitamins that are not taken in through the diet. Multivitamins are also used to treat vitamin deficiencies (lack of vitamins) caused by illness, …