Supplements in Pregnancy
Pregnancy changes what’s safe to take. This is a general, educational overview — not medical advice, and not specific to you. Safety depends on your dose, trimester, and health, so confirm everything with your OB or midwife. The good news: a prenatal plus DHA covers most needs, and the bigger job is avoiding a short list of the wrong things.
Last reviewed Jun 24, 2026 · Evidence-based — every ingredient links to its underlying studies.
Always confirm with your OB or midwife
Supplement safety in pregnancy is individual and dose-dependent. This page is general information to start a conversation — not a personal recommendation. Run anything you take (including "natural" products and topicals) past your clinician.
- Take a prenatal with folate/folic acid, iodine, and choline
- Add omega-3 (DHA)
- Vitamin D; iron if you’re deficient
- Topical retinoids and high-dose vitamin A
- Most herbs/adaptogens (e.g. ashwagandha)
- Megadoses of any single nutrient
Key point: A prenatal + DHA covers most needs; the bigger task is avoiding the short list of things to skip.
A general guide
Tiers reflect typical guidance — your clinician’s advice for your situation always wins.
- 7A prenatal multivitamin— The base layer — covers folate, iodine, iron and (usually some) choline in one product; multiple-micronutrient prenatals beat iron+folate alone for low-birthweight and small-for-gestational-age outcomes
- 6Folate / methylfolate— Neural-tube-defect prevention — start before conception if you can
- 9Omega-3 (DHA)— Fetal brain/eye development — use a DHA/fish-oil product, not cod liver oil (high in preformed vitamin A)
- 7.5Vitamin D— Common deficiency; supports bone/immune health — typical 600–2,000 IU/day, higher doses clinician-only
- 9Iron— If deficient/anemic — test first
- 8.5Iodine— Thyroid + fetal brain development — stick to the ~150–250 mcg in a prenatal; avoid kelp/seaweed megadoses (UL ~1,100 mcg/day harms the fetal thyroid)
- 6Choline— Brain development; often under-supplied by prenatals
- 9.5Creatine— Promising research but not established as routine — ask
- 7.5Ashwagandha— Traditionally used as an abortifacient and lacking safety data — avoid
- 8Tretinoin (topical retinoid)— Retinoids are avoided in pregnancy
- 5Retinol— Topical vitamin A — switch to bakuchiol/azelaic if needed
- 9Adapalene— Topical retinoid — avoided like the others
- 7High-dose vitamin A— Preformed (retinyl/retinol) vitamin A above ~3,000 mcg RAE (10,000 IU)/day is teratogenic; beta-carotene is safe — check your prenatal uses beta-carotene
- High-dose caffeine— Limit to ≤200 mg/day (about one mug of coffee)
- 7Hydroquinone— Notable systemic absorption — usually avoided
- 8.5Melatonin— Hormonal effects + insufficient pregnancy data — generally avoided
Skincare in pregnancy, briefly
On the topical side, the clear "avoid" list is retinoids (tretinoin, retinol, adapalene) and hydroquinone. Reasonable swaps that are generally considered low-concern include azelaic acid, niacinamide, vitamin C, and — most importantly — sunscreen (mineral filters preferred). Always confirm with your clinician.
Sources & further reading
Per-supplement evidence and the pregnancy note for each entry live on its page — always confirm with your clinician.
Common questions
Is creatine safe during pregnancy?
There’s growing research interest, but it isn’t established as a routine pregnancy supplement. Don’t add it on your own — ask your clinician.
Can I take ashwagandha while pregnant?
No — ashwagandha is best avoided in pregnancy (it has traditional use as an abortifacient and lacks safety data), like most herbs and adaptogens. Skip it and talk to your OB or midwife.
Is retinol/retinoid use safe?
No — topical retinoids (retinol, tretinoin, adapalene) and high-dose vitamin A are avoided in pregnancy. Bakuchiol or azelaic acid are gentler alternatives, but confirm with your clinician.
What about melatonin?
It’s generally avoided in pregnancy — it has hormonal effects and pregnancy data are insufficient. Prioritise sleep behavior and talk to your clinician before using it.
Educational guidance, not medical advice. Evidence and safety details for each option live on its individual page; see a clinician for prescription treatments or persistent problems.
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