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Are there any supplements I should avoid when taking acetaminophen (Tylenol)?
Find out if there are any supplements that should be avoided when taking acetaminophen (Tylenol).
Can taking N-acetylcysteine (NAC) supplements reduce my risk of liver damage from acetaminophen?
Information on taking NAC supplements (N-acetylcysteine) to reduce the risk of liver damage from acetaminophen.
How do the COVID-19 vaccines compare in terms of efficacy, safety and side effects? How, when and where do I get the COVID-19 vaccine?
Find out how the COVID-19 vaccines from Pfizer and Moderna compare and learn how when and where you can get the COVID-19 vaccine.
What is the best way to take melatonin to get a good night's sleep?
Learn more about the best way to take melatonin for better sleep. When to take it, how to take it, and general melatonin information.
Is it better to use a powdered product that you mix with liquid than to take a pill? I was told that the vitamins will be more completely absorbed. Is that true?
Learn more about taking supplements & multivitamins in powder or tablet form, including tips on how to get the most from your supplement.
Is it possible to take too much vitamin C?
Find out the daily value of vitamin C, along with possible side effects of excessive vitamin C intake. ConsumerLab explores the topic of proper vitamin C supplement usage, and why taking too much can be harmful.
Should I be worried that my supplement contains "caramel coloring IV"? I've heard that it has been linked to cancer.
Learn more about caramel coloring IV, including evidence from studies on cancer.
What are the health benefits of andrographis? Can it treat colds, help with joint pain, or other conditions, and is it safe?
Learn about the health benefits of andrographis, whether it can help relieve cold symptoms, reduce pain and stiffness of osteoarthritis or rheumatoid arthritis, decrease symptoms of ulcerative colitis, or slow the growth of cancer. See the clinical evidence for the branded andrographis extract ParActin. Plus, learn about dosage, side effects and drug interactions with andrographis.
NAC (N-Acetyl Cysteine) Supplements Review
Choose the Best N-Acetyl Cysteine Supplement. See Our Tests of Popular NAC Supplements and Top Picks for Quality and Value.
Holy Basil Supplements Review
Find the Best Holy Basil (Tulsi) Supplements. Tests and Reviews of Popular Holy Basil Supplements & CL's Top Pick.
Is kratom too dangerous to use?
Find out if kratom is safe/legal to use, including potential adverse effects, such as agitation, rapid heartbeat, nausea, drowsiness, seizures, and possible drug interactions.
How are you staying healthy during the coronavirus pandemic?
Tips for staying healthy during the coronavirus (COVID-19) pandemic. Tips from ConsumerLab members for maintaining physical health, mental health and social well-being during COVID-19.
Recalls & Warnings
February 06, 2023
FDA Warns Companies Promoting Products to Treat Monkeypox, COVID-19, & Other Viruses
On January 30, 2023, the FDA issued a warning letter to four companies following review of the company websites, which found statements about company products to be drug claims because they were promoted to mitigate, prevent, treat, diagnose, or cure viruses such as monkeypox.