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Beta-Carotene (synthetic)

Also known as: provitamin A

DDiscouraged1 studies referenced

Common dosage

Not recommended as supplement

Category

vitamin

Description

Synthetic beta-carotene supplements showed increased lung cancer risk in smokers in two large trials (ATBC, CARET). Get beta-carotene from food instead.

Safety & interactions

ATBC and CARET trials showed 18-28% increased lung cancer risk in smokers. Not recommended as an isolated supplement.
Check all interactions →

Studies on Beta-Carotene (synthetic) (1)

1.

Effects of a combination of beta carotene and vitamin A on lung cancer and cardiovascular disease (CARET)

Omenn GS, et al. (1996) · N Engl J Med · n=18,314

RCTPubMed

Health domains

ProtocolEngine provides general health information based on published research. This is not medical advice. Consult a healthcare professional before starting any supplement or health protocol.