17/10/2025
There’s so much pressure on women who breastfeed to have the “perfect” diet so that their breastmilk is “perfect”. Luckily, nature gave protections to the milk-making process to make sure our breast milk always contains exactly what our baby needs, no matter what we eat* (*see below for exceptions)
THE FACTS
⚡️It takes a mum about 2,800 kJ per day to make breast milk. Some of this energy comes from pregnancy fat stores and around 2,100 kJ needs to come from extra food intake each day. Choose the most nutrient-dense foods that you can.
💦We make an average of 800ml of breast milk daily. Breast milk is 87% water, so make sure you stay well hydrated - especially when you’re exercising and when the weather is warm. (But note that drinking to excess will not help you make more milk.)
💪🏼We can’t control the protein levels in our breast milk with our diet. The protein levels do however naturally decrease as lactation progresses. Based on the average of 800ml of breast milk per day, we need to eat an additional 25g of protein per day when we are breastfeeding, so include this in your daily food intake.
🐠We cannot change the percentages of fat in our breast milk. Fat levels are only influenced by how full our breasts are at any given time – the emptier the breast, the higher the fat content. We can however influence the types of fats in our breast milk by what we eat – so if we eat more unsaturated fats and omega-3 fatty acids, more of them will be in our breast milk.
🌈There will always be the right levels of vitamins and minerals provided your diet is reasonably balanced - eat a rainbow!
[If you are concerned that your diet is deficient in any way, please consult a dietitian or other qualified health care professional.]
(*NOTE: If you are vegan or have had bariatric surgery, it is important to check your vitamin and mineral levels, especially B12, through pregnancy and breastfeeding. Being deficient in B12 can lead to deficiencies in your breast milk, which can have serious consequences for the growth and development of a baby.)