Is it okay to take a zinc supplement while I am on an antibiotic for a respiratory infection?
Does zinc interfere with the absorption of antibiotics? Learn more about this and other effects in the body.
What is Pycnogenol, does it work, and is it the same as other pine bark extracts?
Learn more about Pycnogenol, including evidence from clinical studies on blood clots, osteoarthritis, cognition, vision, tinnitus, and the skin and safety.

Is there evidence that d-limonene can help fight cancer?
Find out if d-limonene can help fight cancer or help for GERD (gastroesophageal reflux disorder), including evidence from clinical studies.

Does Prevagen really improve memory?
Learn more about Prevagen, including clinical studies on Prevagen's impact on memory & cognition, safety, pricing, and an FDA warning letter. ConsumerLab explores the efficacy of Prevagen.

Are gummy vitamins better or worse than pills?
Learn more about gummy supplements, including those for multivitamins, vitamins C and D, calcium, and B vitamins.

Is it better to eat farmed salmon or wild salmon? Which one has more omega-3s and less contamination with PCBs, mercury, etc.?
Learn more about wild caught vs. farm raised salmon, including omega-3 content and contamination with PCBs, mercury, and other toxins.

I'm trying to pick a good multivitamin for my children and husband, and for myself. Any suggestions based on your research?
Find out how to pick the best multivitamin for you and your family, based on diet, price, and effectiveness.

I've tried a number of fish oil supplements, all of which make me nauseous. What is the best non-fish alternative? I am primarily interested in getting EPA.
Learn how to reduce fish oil side effects such as nausea and upset stomach.

How can I find out where a vitamin or supplement is made and where its ingredients come from, such as China or the USA?
Learn more about the manufacturing, distribution, and ingredients of a supplement, including FDA regulations.

How do I choose the best probiotic supplement? There are so many different strains of bacteria!
Information on how to choose the best probiotic supplement based on safety and our lab test on probiotic bacteria content.
