02/06/2026
Protein is an essential nutrient, made of amino acid building blocks, which are needed for repairing tissue, maintaining muscle and supporting immune function. Protein stabilises energy levels and is highly satiating, which can aid in supporting the physical demands of newborn life and healthy post-partum weight management.
Whilst breastfeeding, a woman's protein requirements increase to support breast milk production and a baby’s rapid muscular and organ growth. Similar to calcium, the amount of protein within breastmilk remains constant regardless of a mother's diet. If enough is not attained through food, the body may start to use its own muscle stores to meet these demands. This can increase fatigue and risk of injury.
Eliminating dairy and soy whilst breastfeeding can make it more difficult to meet daily protein needs. To support increased needs during breastfeeding, mothers should aim to include at least 3.5 serves of alternative protein-containing foods across the day, which can be achieved by including a protein source at each main meal.
1 serve = 65g cooked red meat, 80g cooked white meat, 100g cooked seafood, fish, 2 large eggs, 1 cup cooked legumes, 1 cup cooked quinoa.
Animal-based foods (e.g. meat and eggs) provide all essential building blocks for protein including those the body cannot make. Most plant-based sources (legumes, nuts, seeds), however, contain lower amounts of these building blocks, and are incomplete proteins. Including a variety of complementary plant-based sources across the day is recommended to ensure overall adequacy. If vegan, or vegetarian, careful planning is required to meet daily needs.
If able to incorporate a range of the above whole-foods daily, protein powders or supplementation are often not needed. However, if protein intake remains a concern, guidance from a doctor or dietitian is recommended before introducing new supplements into your diet.