Nature’s perfectly tailored first food

Breast milk isn’t just milk — it’s a dynamic, living fluid that changes to meet your baby’s needs at every stage of development.

Colostrum (Birth to ~5 days)

Often called liquid gold, colostrum is the first milk your body produces:

Thick, yellowish and small in quantity — but powerful!
Packed with antibodies, white blood cells, and immunoglobulin A (IgA) to protect against infection
Helps coat and protect baby’s gut
Acts as a natural laxative to help pass meconium

Transitional Milk (Day 5 to ~2 weeks)

Creamier and more abundant
Increasing in fats, calories, and lactose
Balances protective factors from colostrum with the growing nutritional needs of your baby

Mature Milk (After ~2 weeks)

By about 2 weeks postpartum, your milk becomes “mature.” It contains:

Foremilk (watery & rich in lactose): Quenches thirst at the start of a feed
Hindmilk (thicker & higher in fat): Comes later in the feed to help baby feel full and grow

Nutrients & Roles

Water

Keeps baby hydrated (88% of breast milk!)

Carbohydrates (mainly lactose)

Brain development & energy

Proteins

Growth, digestion, immune support (e.g. lactoferrin, lysozyme)

Fats

Brain development, energy, essential fatty acids like DHA

Vitamins & Minerals

Calcium, iron, zinc, B12, and others based on your diet

Antibodies & Enzymes

Immune defense, gut protection

Hormones

Help regulate baby’s appetite and development

Bonus Superpowers of Breast Milk

Adapts in real time — changes when baby is sick or in growth spurts
Varies between feeds — even taste and smell shift based on your diet
Day vs. Night — milk made at night contains more melatonin to help baby sleep