Based on the Institute of Medicine recommendations for exclusively breastfeeding mothers.
BMR = 10W + 6.25H - 5A - 161
W = weight (kg), H = height (cm), A = age
Uses the Mifflin-St Jeor equation, considered one of the most accurate for estimating BMR.
Breastfeeding is a metabolically demanding process that requires significant energy to produce breast milk. On average, a lactating mother produces about 750-800 mL of breast milk per day during the first six months, with each liter of milk requiring approximately 500-700 calories to produce. This is why the Institute of Medicine recommends an additional 450-500 kcal/day during the first six months of exclusive breastfeeding.
As babies begin to eat solid foods around 6 months of age, breast milk production typically decreases slightly, which is why the calorie recommendation drops to about 400 kcal/day for the 6-12 month period. However, individual needs can vary based on how much the baby continues to breastfeed, the mother's metabolism, and activity level.
Stay Hydrated
Drink at least 8-10 glasses of water daily. Your body needs extra fluids to produce breast milk.
Eat Nutrient-Dense Foods
Focus on whole grains, lean proteins, fruits, vegetables, and healthy fats to support milk quality.
Don't Skip Meals
Eat regular, balanced meals and healthy snacks to maintain energy levels throughout the day.
Gradual Weight Loss Only
If trying to lose weight, aim for no more than 0.5 kg (1 lb) per week to maintain milk supply.
Calorie estimates are general recommendations for lactating mothers and may vary based on individual metabolism, baby's feeding patterns, and activity level. Restrictive dieting while breastfeeding is not recommended as it may affect milk supply and quality. Always consult with a healthcare professional, registered dietitian, or lactation consultant for personalized nutrition guidance during breastfeeding.