Evidence brief · Supplement
Beta-Carotene for Lung cancer (smokers, high-dose)
Evidence grade B — Increased risk
- Overall grade
- Grade B
- Last revised
- 1
- graded outcome
- 0
- references listed
Assembled by the app from other entries in this library. It adds no evidence of its own — follow the links to the entries it draws on.
1 at grade B — 1 graded row
What is known
Each outcome with its grade (how strong the evidence is, A to D), the size of the effect where the entry records one, and how often studies agree.
- Lung cancer (smokers, high-dose)Evidence grade B
Increased risk
Smallhigh
The evidence in words
The verdict
For lung cancer (smokers, high-dose), Beta-Carotene earns evidence grade B (small effect, high consistency) — there is real evidence here. Increased risk
How it might work
It's converted to retinol as needed (a safe way to get vitamin A) and acts as an antioxidant pigment.
How to use it
Safety & cautions
Food amounts are safe (excess just yellows skin). High-dose supplements are contraindicated in smokers and asbestos-exposed people.
Bottom line
Get carotenoids from food. Skip isolated high-dose beta-carotene supplements — especially if you smoke.
Goes with
- Beta-CaroteneRead the full Beta-Carotene monographEvidence grade C
Related reading
Entries that share this one's tags or conditions.
- Beta-Carotene for Vitamin-A statusEvidence grade B — Corrects deficiencyEvidence grade B
- Beta-Carotene: side effects, safety & interactionsFood amounts are safe (excess just yellows skin). High-dose supplements are contraindicated in smokers and asbestos-expoEvidence grade C
- Chaga for Immunity / antioxidant (humans)Evidence grade D — No trialsEvidence grade D
- Alpha-Lipoic Acid for Diabetic neuropathyEvidence grade B — Symptom reliefEvidence grade B
Sources
This entry lists no references of its own — it is assembled from the entries it links to, whose sources are on their pages.
Last revised . A grade is this entry's reading of the evidence, not medical advice.