What it is
Beyond the prenatal, a pile of supplements get marketed to pregnant mothers: magnesium, probiotics, collagen, cod liver oil, and more. Supplements are not tested like medicines, so quality varies. This is a map of what each is for, so you can ask good questions.
What's typical
Magnesium is often tried for leg cramps, constipation, and sleep. Probiotics come up for digestion and the baby's eczema risk. Collagen is sold for skin and tissue healing. Cod liver oil carries DHA plus vitamins A and D; the vitamin A is why it needs care in pregnancy. Many mothers take three or four things without telling their provider.
What's known
Magnesium for leg cramps has mixed trial results, per Cochrane. Probiotic evidence is strain-specific and modest. Cod liver oil is a traditional pregnancy food in Nordic cultures. Its vitamin A level is why ACOG and the NHS urge caution. Third-party testing seals, such as NSF or USP, are how to judge quality.
What helps
- Bring everything you take to your visit, bottles included.
- Ask one question per product: what is it for, and would you check a level first?
- Get food versions where you can: pumpkin seeds for magnesium, fish for DHA.
When to call someone
- Nowa child swallows any supplement, especially iron. Call Poison Control, 1-800-222-1222.
- Todaya rash, trouble breathing, or severe stomach pain after starting something new.
- At your next visityou want to start anything beyond the prenatal, or someone sold you a stack you are unsure about.
Who helps
Related
- Prenatal vitamins: when to start and what's in themBefore Pregnancy
- Vitamin DPregnancy: Eating
- Gut health before and during pregnancyBefore Pregnancy
- Omega-3s and DHAPregnancy: Eating
- Herbs and teas postpartum: what's traditional, what's knownNourishment and Traditions
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Sources
- NIH Office of Dietary Supplements — Dietary supplements: what you need to know
- Cochrane — Interventions for leg cramps in pregnancy review
- American College of Obstetricians and Gynecologists — Nutrition during pregnancy FAQ
Sources are named, not yet linked. The steward verifies each one and adds the link.
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