Research
Micronutrients & recovery
Beta-carotene supplementation increases the risk of lung cancer in smokers and asbestos workers.
If you smoke or have been exposed to asbestos, do not take beta-carotene supplements, as they increase your risk of lung cancer. This risk does not apply to non-smokers.
WeakRefutesHIGH confidence
Two large trials... found a surprising increase in lung cancer incidence and deaths in smokers and male asbestos workers.
Why this rating
Based on large RCTs.
Source
National Institutes of Health State-of-the-Science Conference Statement: Multivitamin/Mineral Supplements and Chronic Disease Prevention
Nih State-of-the-Science Panel · Annals of Internal Medicine · 2006
DOI 10.7326/0003-4819-145-5-200609050-00136
systematic_reviewCited 172×
Read the paper DOI resolved against Crossref · corpus check 2026-06-10
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