“carotenoids?”Here!carotenoids (e.g. beta-carotene, lutein, lycopene)
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As a supplement
Talk to your doctor or pharmacist.
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A broad family of yellow, orange, and red pigments found in plants and some algae, including beta-carotene, lutein, zeaxanthin, and lycopene. Listed generically as "carotenoids," a label does not specify which particular compound or blend is present.
Why it’s used
Taken by some for general antioxidant support or for eye-health-related reasons, depending on which specific carotenoid is actually present.
What the evidence says
Evidence varies substantially by individual carotenoid — for example, lutein and zeaxanthin have more established research tied to eye health, while general antioxidant claims for carotenoids as a class are weaker. Because this entry does not specify which carotenoid is used, no single evidence grade can be assigned responsibly.
Where we looked
There was no paper to cite here, so this is the search instead — run it yourself and see what we saw.
- PubMed: 5521 records · searched September 2026
"carotenoids"[Title/Abstract] AND (review[pt] OR "safety assessment"[Title/Abstract] OR "risk assessment"[Title/Abstract] OR toxicology[Title/Abstract] OR toxicity[Title/Abstract] OR characterization[Title/Abstract] OR characterisation[Title/Abstract]) - PubMed: 312 records · searched September 2026
"carotenoids"[Title/Abstract] AND ("dietary supplements"[MeSH] OR supplementation[Title/Abstract] OR supplement[Title/Abstract] OR supplements[Title/Abstract] OR "oral administration"[Title/Abstract]) AND (randomized controlled trial[pt] OR clinical trial[pt] OR meta-analysis[pt] OR systematic review[pt]) AND humans[MeSH] - PubMed: 23441 records · searched September 2026
"carotenoids"[Title/Abstract]
This says what this database holds under these terms. It is not a finding that no research exists.
Context
Where specific carotenoids have been studied, doses and outcomes vary considerably by compound, which limits generalizing to "carotenoids" as an unspecified category.
Rumors
Carotenoid supplements are linked to serious health risks, including lung cancer in smokers.
Supports — establishedhealth and safety evidence
Studied in: smokers and asbestos workers.
Measured as an outcome.
- Role of Beta-Carotene in Lung Cancer Primary Chemoprevention: A Systematic Review with Meta-Analysis and Meta-Regression (Peer-reviewed) · Funding not checked
Who’s saying this
- Yahoo — a publisher: advertising solutions for advertisers and partners
How we know who this is
- “For 30 years and counting, Yahoo has become second nature for millions of people around the world.” (their page)
- “Our solutions ensure advertisers and partners reach the right audiences and achieve positive results.” (their page)
Carotenoid supplements support healthy vision and immune function.
We haven’t found evidence strong enough to support this or rule it out.
What was measured is not yet noted.
Who’s saying this
- Swanson Vitamins — a brand: sells its own vitamins and supplements
How we know who this is
- “At Swanson Vitamins, integrity means you get exactly what's promised: Safe, pure, effective supplements that you can trust.” (their page)
- Swanson Vitamins — a brand: sells its own vitamins and supplements
Carotenoid supplements protect the skin against sun damage.
Supports — suggestivehealth and safety evidence
Measured as an outcome.
- Protection from sunburn with beta-Carotene--a meta-analysis (Peer-reviewed) · Funding not checked
Who’s saying this
- Yahoo — a publisher: advertising solutions for advertisers and partners
How we know who this is
- “For 30 years and counting, Yahoo has become second nature for millions of people around the world.” (their page)
- “Our solutions ensure advertisers and partners reach the right audiences and achieve positive results.” (their page)
Carotenoid supplements act as antioxidants that protect cells from oxidative stress.
Supports — suggestivehealth and safety evidence
Measured as a biomarker.
- Effects of Oral Carotenoids on Oxidative Stress: A Systematic Review and Meta-Analysis of Studies in the Recent 20 Years (Peer-reviewed) · Funded by National Natural Science Fund; Liaoning Province National Natural Science Fund (government) · No conflicts declared
- The carotenoid beta-carotene enhances facial color, attractiveness and perceived health, but not actual health, in humans (Peer-reviewed) · Funding not checked
Who’s saying this
- Swanson Vitamins — a brand: sells its own vitamins and supplements
How we know who this is
- “At Swanson Vitamins, integrity means you get exactly what's promised: Safe, pure, effective supplements that you can trust.” (their page)
Taking carotenoid supplements gives you a tan or glowing skin without sun exposure.
Supports — suggestivehealth and safety evidence
Studied in: adult men.
Measured as an outcome.
- The carotenoid beta-carotene enhances facial color, attractiveness and perceived health, but not actual health, in humans (Peer-reviewed) · Funding not checked
Who’s saying this
- Yahoo — a publisher: advertising solutions for advertisers and partners
How we know who this is
- “For 30 years and counting, Yahoo has become second nature for millions of people around the world.” (their page)
- “Our solutions ensure advertisers and partners reach the right audiences and achieve positive results.” (their page)