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ConsumerLab reviewed 39 multivitamin supplements and found problems with 44% of them, such as excessive or inadequate amounts of vitamins and minerals. It selected Top Picks for different groups and explained how to choose a multivitamin based on age, gender, and health needs.
The evidence to-date regarding oleandrin and COVID-19 is limited to laboratory research indicating that treating cells in test tubes with oleandrin before or after exposure to SARS-CoV-2 — the virus that causes COVID-19 — reduces virus production 78-fold to 800-fold (Plante, bioRxiv 2020). However, this research has not yet been peer ...
Z-Stack is a multivitamin developed by Dr. Zelenko, a physician known for his COVID-19 protocol. It contains vitamin C, vitamin D3, zinc and quercetin, but some of its ingredients may be too high or ineffective for immune boosting.
Compare the quality and effectiveness of 13 vitamin C supplements, including pills, powders, gummies, and liquids. Learn how vitamin C can help with colds, blood pressure, gout, and more, and what dosage and form to choose.
Learn which supplements can cause misleading results or lead to unnecessary testing or treatment in various blood tests, such as thyroid, vitamin D, PSA, and COVID-19 tests. Sign in as a member to access the full list of supplements and foods that interfere with tests, and when to stop taking them before tests.
ConsumerLab.com tests and compares Mercola products such as glutathione, vision, hydrogen water, lumbrokinase, astaxanthin, ginger, and more. Find out which products passed or failed quality tests and how to avoid counterfeits.
Learn how to optimize the absorption and effectiveness of vitamins and minerals by taking them together or separately, with or without food, and at different times of day. Find out which nutrients can enhance or interfere with each other, and how to avoid side-effects and interactions with medications.
ConsumerLab.com provides independent tests and comparisons of vitamin C supplements, including pills, gummies, powders, and liquids. Learn about different forms of vitamin C, dosage, safety, benefits, and more.
Find the best zinc supplements and lozenges for colds, deficiency, and vision based on testing, quality, and value. Compare 19 products, see dosage, forms, benefits, and cautions of zinc.
Between May 7 and May 8, 2020, the FDA issued warning letters to seven companies for selling products such as essential oils, CBD, hand sanitizers, and vitamins with unsupported claims that they can treat coronavirus (COVID-19).