Can You Have Protein Shakes When Breastfeeding?
Written by Jordan Morley · Reviewed against NHS: food and drinks to avoid when breastfeeding · Last updated 28 October 2026
Fine in moderation. Simple protein powders are generally fine while breastfeeding, but check the label for added caffeine, stimulants and herbal blends.
What the guidance says
There's no NHS rule against protein shakes while breastfeeding. The sensible check is the label: caffeine, 'fat burners', herbal blends and unfamiliar added ingredients aren't well studied during breastfeeding. Count any caffeine towards the 300mg a day limit.
You can also check the calorie content of protein shakes alongside their safety information.
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Protein Shakes: the other answers on this site
| Question | Short answer (links to the full page) |
|---|---|
| In pregnancy | Check the ingredients |
Common questions
Is protein shakes safe while breastfeeding?
Fine in moderation. Simple protein powders are generally fine while breastfeeding, but check the label for added caffeine, stimulants and herbal blends.
What should I check on the label?
Added caffeine, stimulants, herbal blends and 'fat burners'. Plain whey or plant protein is the simplest choice.
Do I need extra protein while breastfeeding?
Most women get enough from a varied diet. The NHS doesn't recommend special products.
Was this different during pregnancy?
In pregnancy our verdict was “check the ingredients” (see our pregnancy guide for the reasons).
What should I avoid while breastfeeding?
The NHS list is short. Caffeine: try not to have more than 300mg a day (a mug of filter coffee is about 140mg, instant 100mg, tea 75mg). Alcohol: it is safer not to drink, but 1 or 2 units once or twice a week should be fine. Oily fish: no more than 2 portions a week. Shark, swordfish and marlin: no more than 1 portion a week. Peanuts are fine unless you're allergic. Most other foods that were off the menu in pregnancy, such as soft cheese, pâté, cured meat and runny eggs, are not restricted.
Related answers
Primary source: NHS: food and drinks to avoid when breastfeeding.
General information only, not medical advice: see the medical disclaimer. Feeling unwell after eating something? Contact NHS 111 or your GP.