Milk free diet for breastfeeding mums

This dietary advice gives general information to help you make the recommended changes to your diet while you are breast feeding and while your child requires a cow’s milk free diet.  If you need more detailed advice, please ask your doctor to refer you to a Dietitian for advice on your diet.

Breast feeding is best for your baby.  Unfortunately, the cow’s milk protein you eat can pass through to your breast milk.  This means that your baby can be exposed to cow’s milk protein from your breast milk if you ingest cow’s milk and cow’s milk products.

Occasionally, breast fed babies can react to milk proteins transferred in breast milk from the mother’s diet. If your baby reacts to cow's milk proteins in your breast milk, you will be advised to avoid milk (dairy) whilst breastfeeding. This is usually done as a trial for between 4 to 6 weeks to see if your baby’s symptoms improve. If they do not, and you were following the diet strictly, you can return to your normal diet.  If your baby's symptoms improve whilst you are on a cow's milk free diet, you would be asked to reintroduce cow's milk back into diet after 4-6 weeks (Home challenge) to check for any return of symptoms.  Should there be return of symptoms on home challenge, non-IgE milk allergy is confirmed.

If your baby develops symptoms only on introduction of cow's milk in weaning/cow's milk containing feed (infant formulas), we encourage you to return to full breast feeding, and start milk free weaning. It is important to remember that if your baby does not have any symptoms on breast feed, while you (mother) are consuming cow's milk, you can continue to consume cow's milk containing foods in your diet, and initiate cow’s milk free weaning.

A small proportion of milk allergic children may also react to soya proteins in which case this also needs to be avoided in maternal milk.

If you have any other allergies or medical conditions, please seek further advice.

It is important for you to have a milk free diet- please check food labels and avoid products containing “Milk”.

Suitable alternatives to cow's milk are Calcium enriched soya milk, oat milk, nut milks (cashew, almond, hazelnuts), pea, coconut,  hemp milk etc.

  Milk free foods Foods to avoid / check labels
Fruit & vegetables All plain fruit vegetables
Fresh, dried, frozen or tinned
Vegetables mixed with sauces made from cow's milk
Fruit mixed with ordinary yogurt, custard, cream, ice-cream
Meat, fish, eggs, quorn, pulses Plain meat, fish, eggs, nuts and pulses Meat, fish, eggs, and pulses in a sauce made from cow's milk
Processed/prepared meat/fish
Plain quorn products
Dairy products Calcium enriched milk alternatives can be used in cooking as well as in cereals
E.g. Oat milk, nut milks, coconut based yogurts
Cows', goats' and sheep's milk and all products made from these
All cheeses, including cheese spreads, cream cheese,cheese
Dairy ice cream, cream and desserts
Starchy food and cereals Bread/rolls/wraps/bagels/pitta/crackers

Flour, plain pasta and rice
Plain potatoes
Plain breakfast cereals
Filled pasta/ravioli or rice in cows' milk based sauces
Processed potato products
Other foods


Any oils, lard, suet, dripping
Dairy-free margarine e.g. Pure, Vitalite, Flora dairy-free, supermarket own dairy-free brand,

Dark chocolate

Biscuits and cakes
Milk chocolate, most chocolate spread

Ingredients to watch out for on labels:

Milk and milk products will be indicated and 'milk' in bold on the ingredient list, check the labels.

Calcium and Vitamin D

  • When breast feeding, you require approximately 1250 mg of calcium per day.  This can be difficult to obtain from your diet when you are avoiding cow’s milk and cow’s milk products.
  • To achieve a sufficient intake it is important that you try to use a calcium enriched cow’s milk substitute (for example soya drink, oat drink, rice drink, nut drink, hemp drink) and include non-dairy sources of calcium in your diet. 
  • Other mammalian milks such as goat milk and sheep milk and their products contain proteins similar to cow’s milk and should also be avoided.
  • It may also be advisable for you to take a calcium supplement (1000 mg/day), please discuss this with your doctor.
  • The Department of Health recommends that all breast-feeding mums take a 10µg Vitamin D supplement which can be obtained from pharmacies or health food shops.

Use this guide to help you check if you are getting enough calcium in your diet.

Calcium content of foods

Food Calcium Content (mg)
300ml soya drink * 360
300 ml coconut drink* 360
300 ml almond/hazelnut drink*


300 ml rice drink * 360
300 ml oat drink*


Pot of Soya yoghurt * 150
Pot of soya dessert * 135
120 g Soya custard *


1 scoop of soya ice cream 6
Fruit juice fortified with calcium 300
140 g tinned pilchards / sardines with bones 450
2 fish fingers 50
2 large slices bread 130
5 tablespoons cooked lentils


200 g baked beans 100
2 tablespoons cooked spinach 135
Medium portion broccoli/cabbage 35
7 dried apricots 40
Medium Orange 75

*check product is fortified with calcium and Vitamin D

Example of how to meet 1250 mg Calcium per day

Meal Food Calcium content (mg)
Breakfast Cereal with 200ml fortified milk substitute



200g baked beans

2 slices wholemeal toast with dairy free spread



Evening Meal

140 g tinned sardines

Jacket Potato

2 tablespoon spinach




Supper 200ml Hot Chocolate (made with cocoa powder and fortified milk substitute) 240
  Total 1360

Page last updated on: 22nd March 2023