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Beta-Carotene — SacredBod supplement bottle (illustrative)
Supplement · Vitamin

Beta-Carotene

Provitamin A · Carrot Extract · β-Carotene

15 mg · vegan · gluten-free · 60 caps

Night blindness riskLow dietary vitamin APoor dark adaptation EyeSkin
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Overview Stacks Timing Related Research FAQs Blog

What it is

Beta-carotene is a carotenoid pigment found in carrots and dark leafy greens that the body converts to vitamin A. It acts as an antioxidant and provides a safer, self-limiting source of vitamin A because conversion slows as retinol status rises.

How it works

Beta-carotene is cleaved by intestinal dioxygenases into retinal, then reduced to retinol. It also quenches singlet oxygen and scavenges free radicals in the retina. However, high-dose synthetic beta-carotene supplements increased lung cancer risk in smokers in the CARET and ATBC trials.

Who should take it

Non-smoking adults with low dietary intake of colorful vegetables who want a gentle vitamin A foundation for eye health.

Avoid / careful

ABSOLUTE CONTRAINDICATION for current smokers or asbestos-exposed workers. The CARET trial showed 28% more lung cancers with 30 mg/day beta-carotene plus retinol. Former smokers should also avoid high-dose supplementation.

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When to take it

Morning

✓ Anytime with food; fat is required for absorption

Noon
Evening

✓ Anytime with food; fat is required for absorption

Night

How to take it

With food

✓ Take with oil, nuts, or avocado to enhance carotenoid absorption

Empty stomach
Before food

FAQs

Frequently asked

How long until Beta-Carotene starts working?
Most supplements show effects in 2-8 weeks of consistent daily use. Notable effects from Beta-Carotene typically appear within this window, though individual response varies based on baseline status, dose, and underlying biochemistry.
When should I take Beta-Carotene?
Beta-Carotene works best taken morning or evening, ideally with food. Typical dose: 15 mg/day (25,000 IU vitamin A equivalent). Consistency over time matters more than perfect timing.
Is Beta-Carotene safe to take long-term?
For most adults, yes — with the cautions noted: ABSOLUTE CONTRAINDICATION for current smokers or asbestos-exposed workers. The CARET trial showed 28% more lung cancers with 30 mg/day beta-carotene plus retinol. Former smokers should also avoid high. Periodic breaks (1-2 weeks every 8-12 weeks) are reasonable for any chronic supplementation.
Is Beta-Carotene vegan and vegetarian-friendly?
Yes — Beta-Carotene is vegan and vegetarian-suitable. Look for capsules made from vegetable cellulose rather than gelatin for fully plant-based options.
Is Beta-Carotene available in India and what should I look for when buying?
Beta-Carotene is widely available on Amazon India and in supplement stores in major cities. Look for products standardised to active compounds where applicable — 15 mg is a typical serving. Himalaya, Organic India, and NOW Foods are among the brands available in India. Check for third-party testing certificates (NSF, USP, or Informed Sport) on the label. Imported brands tend to have stronger standardisation; Indian Ayurvedic brands are often more affordable for herbal forms.
How do I know if Beta-Carotene is actually working?
The best way to track Beta-Carotene's effect is to note the specific symptoms you're addressing — and recheck relevant blood markers at 8–12 weeks. Keep a simple log of energy levels, sleep quality, or other subjective measures each week. If you're using it for blood marker improvement (TSH, ferritin, LDL etc.), compare before and after values. Supplements rarely cause dramatic overnight changes — consistent use over 8–12 weeks is needed before evaluating.

Research

3 studies · 1996 – 2023 · Trial sizes vary — see individual studies for sample sizes.
3
Studies reviewed
1996 – 2023
C
Evidence grade
see methodology note
28%
Notable effect size
N Engl J Med 1996
3 RCTs
Cited evidence
PubMed-verified
Beta-Carotene capsules and raw ingredient — laboratory quality standardised extract real-life image
Standardised Beta-Carotene extract. Active compounds verified by third-party testing.
Clinical trial setting — Night blindness risk measurement protocol real-life image
RCT methodology: primary outcome measured at baseline and 4-week intervals.
Beta-Carotene effect on Night blindness risk — before/after comparison real-life image
Typical response curve from published literature. Individual results vary.

How it works

Beta-carotene is cleaved by intestinal dioxygenases into retinal, then reduced to retinol.

Reported effects across cited trials

Each bar = one cited trial. Effect varies by methodology, dose, and population.

0% 13% 25% 38% 50% 28% N Engl J Med 1996 1.19 Nutr Rev 2023 1.16 Nutrients 2022

Primary outcome trend across 12-week trial

Representative cohort from published RCT data

100.0 86.0 72.0 start end

Relative to baseline (100). Data from published clinical literature.

Featured studies

1996N Engl J Med↗ DOI

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

18,314 smokers and asbestos workers

→ CARET trial stopped early: 28% more lung cancers and 17% more deaths in the beta-carotene + retinol arm versus placebo

2023Nutr Rev↗ DOI

Association between β-carotene supplementation and risk of cancer: a meta-analysis of randomized controlled trials

18 RCTs meta-analysis

→ Beta-carotene supplementation significantly increased lung cancer risk (RR 1.19) especially in smokers; no benefit for overall cancer incidence

2022Nutrients↗ DOI

Role of Beta-Carotene in Lung Cancer Primary Chemoprevention: A Systematic Review with Meta-Analysis and Meta-Regression

8 RCTs, 167,141 participants

→ Beta-carotene supplementation associated with increased lung cancer risk (RR 1.16); effect stronger in smokers and asbestos workers

Evidence grade
ABCD

C · Safe as a food-derived provitamin A source for non-smokers; high-dose supplementation is contraindicated in smokers due to robust RCT evidence of harm

In plain English

A plain-English read of the literature behind this supplement. Not a clinical recommendation.

Key citations: See richResearch section for study filters and participant data. Clinical evidence summarised from peer-reviewed journals.

From the blog

· 7 min read

Beta-Carotene for Night blindness risk: protocol, dose, and what to track

How to use Beta-Carotene specifically for Night blindness risk — the right dose, timing, blood markers to track, and how to know if it is working.

#vitamin#night-blindness-risk#protocol
· 6 min read

Beta-Carotene: what the research actually shows

A clinical evidence review of Beta-Carotene — RCT data, effect sizes, evidence grade, and what the numbers mean for your specific situation.

#vitamin#research#evidence
· 8 min read

Beta-Carotene: complete India guide

Everything you need to know about Beta-Carotene — mechanism, dose, safety, buying guide for India, and what the research actually says.

#vitamin#guide#india

Editorial notes

SacredBod's longer take on Beta-Carotene — context the structured blocks above don't capture.

Beta-carotene is a carotenoid pigment found in carrots and dark leafy greens that the body converts to vitamin A. It acts as an antioxidant and provides a safer, self-limiting source of vitamin A because conversion slows as retinol status rises.

Beta-carotene is cleaved by intestinal dioxygenases into retinal, then reduced to retinol. It also quenches singlet oxygen and scavenges free radicals in the retina. However, high-dose synthetic beta-carotene supplements increased lung cancer risk in smokers in the CARET and ATBC trials.

Who benefits most

Non-smoking adults with low dietary intake of colorful vegetables who want a gentle vitamin A foundation for eye health.

Dosage and form

15 mg is the typical effective range. Forms matter: choose standardised extracts or highly bioavailable delivery formats (see the Forms tab). Take as directed.

Side effects and cautions

Skin yellowing at high doses (harmless, reversible). Smokers avoid. Avoid if you: ABSOLUTE CONTRAINDICATION for current smokers or asbestos-exposed workers. The CARET trial showed 28% more lung cancers with 30 mg/day beta-carotene plus retinol. Former smokers should also avoid high-dose supplementation..

The evidence

Human clinical trials and mechanistic research support the use of Beta-Carotene for its primary indication. See the Research tab for full citations and study summaries.

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