Editorial standards

Supplement Magazine is an independent publication about vitamins, minerals, and dietary supplements. We exist because the space between a supplement’s marketing and its actual evidence is wide, and someone should stand in it honestly.

Who runs it

The publication is run by Emrah Sümer, its founder and managing editor. He is not a clinician and does not present himself as one. His job here is to read the primary research, check every citation, and say plainly what it supports, including when the answer is that a product does not work. We do not currently have an outside medical reviewer, and no article claims one.

How we research

Every health claim we publish is traced to a primary source: a peer-reviewed study, a systematic review or meta-analysis, a product label filed with the FDA (read through DailyMed), or an authoritative reference such as the NIH Office of Dietary Supplements. We link those sources so you can check our work, and each one is dated with the day we last checked it. Where we can count something ourselves, we do: several articles are built on our own counts from the NIH Dietary Supplement Label Database, with the method stated on the page. The full process is set out inhow we review.

How we make money

Some articles carry affiliate links, through Amazon Associates and through Awin programmes such as Herbal Lab and USA Medical, and a few carry a clearly labelled advertisement. If you buy through one of these links, we may earn a commission at no additional cost to you. A product box appears only when the article’s own conclusion supports buying something, and it is visually separated from the editorial text with the disclosure next to the link. Many of our articles have no product box at all, because the evidence did not justify one. Details are on ouraffiliate disclosure page.

Corrections

When we find an error, we fix the article and record it here with the date. We do not quietly change a finding.

• 15 October 2026.Lion’s Mane: How Long It Takes: the participant count for the 2023 Docherty trial was corrected from 43 to 41, the number given in the study’s abstract.
• 11 October 2026.Magnesium and Melatonin Together: an unsourced statement that 0.5 to 1 mg of melatonin works as well as 5 to 10 mg was removed and replaced with the findings of a 2024 dose-response meta-analysis of 26 trials, in which the effect peaked at 4 mg a day.

Not medical advice

Nothing here is medical advice or a substitute for a clinician. Supplements interact with medications and conditions. Talk to your doctor or pharmacist before starting anything new. See our medical disclaimer.