Life stage
Postnatal and supplements
After birth, the NHS says breastfeeding women, like everyone, should consider a daily 10 microgram vitamin D supplement in autumn and winter, and some need it all year round. Beyond that, a varied diet, fluids and rest do most of the work for recovery and energy. Many supplements have not been tested for breastfeeding, so always check suitability with your GP, pharmacist or health visitor first.
What changes nutritionally
The postnatal period is about recovery and, for many, breastfeeding. Energy needs are high while sleep is short, which makes diet quality and hydration the priorities rather than any single supplement. Vitamin D is the one the NHS continues to recommend for breastfeeding women. Iron can be a question for women who lost more blood during birth, but that is something to confirm with a GP rather than guess at.
Because some supplements pass into breast milk, this stage calls for the same caution as pregnancy: check a product is suitable for breastfeeding before taking it.
The supplement categories that matter
Vitamin D: the NHS says breastfeeding women should consider 10 micrograms daily in autumn and winter, and all year round if you are not often outdoors or usually cover most of your skin outdoors (the NHS also says people with dark skin should consider it all year). Breastfed babies have their own NHS vitamin D advice. Iron: only if your GP advises it, based on how you feel and any tests. Omega-3: maternal DHA continues to matter while breastfeeding; check the source and breastfeeding suitability first. Magnesium: some women ask about it for tiredness; check it is suitable while breastfeeding and speak to your pharmacist. See when to take magnesium. Collagen and cosmetic supplements: check breastfeeding suitability before use.
Where this fits across the life stages
The postnatal period follows pregnancy. Later stages are covered in our perimenopause, menopause and senior years guides.
Frequently asked questions
What does the NHS recommend after birth?
Vitamin D, as set out in the list above. For your baby, the NHS says breastfed babies from birth to 1 year should be given a daily 8.5 to 10 microgram vitamin D supplement; your health visitor can advise.
Can I take supplements while breastfeeding?
Some supplements pass into breast milk, so suitability matters. Vitamin D is recommended; many others have not been tested for breastfeeding. Always check the label says it is suitable while breastfeeding and speak to your GP, pharmacist or health visitor before starting anything new.
What about energy and recovery?
Tiredness is common after birth. A varied diet, fluids and rest do more than any supplement. If you feel persistently exhausted or low, that is worth raising with your GP or health visitor rather than reaching for a product, as it can have a medical cause.
Is iron worth taking postnatally?
Only if advised. Some women are low in iron after birth, but this should be confirmed and managed with your GP rather than self-treated with high-dose supplements. Speak to your GP if you feel unusually tired or breathless.
This is information, not medical advice, and is not a substitute for a registered clinician. While breastfeeding, always check any supplement with your GP, pharmacist or health visitor first.
We sell this in our store
Vitamin D3 2,000 IU
Her Vitals' own vitamin D3 is a 2,000 IU (50 microgram) daily softgel, five times the NHS's routine 10 microgram breastfeeding advice above, so it is not the standard postnatal dose. It may suit someone advised by a GP or health visitor that they need more; always confirm any higher-strength product is suitable while breastfeeding first.
Sold by us directly from our own Shopify store, disclosed here as our own product like any other. This is a direct sale by us. It does not win our roundups or calculators automatically. Check our price against any other product with the cost-per-effective-dose calculator.
We sell this in our store
Omega-3 EPA 180mg + DHA 120mg
Her Vitals' own omega-3 provides 180 mg EPA and 120 mg DHA per softgel. Maternal DHA continues to matter while breastfeeding, but check the breastfeeding suitability and speak to your GP, pharmacist or health visitor before starting, as noted above.
Sold by us directly from our own Shopify store, disclosed here as our own product like any other. This is a direct sale by us. It does not win our roundups or calculators automatically. Check our price against any other product with the cost-per-effective-dose calculator.
Editor, Her Vitals
Oliver leads Her Vitals's editorial coverage of women's life-stage health and supplements. He curates and reviews existing branded products across trying to conceive, pregnancy, postnatal, perimenopause, menopause and the senior years, weighing what the evidence supports against guidance from bodies such as EFSA, the NHS and NICE, and is clear that the content is information rather than medical advice.
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