Breast milk texture and colour then changes to suit babies’ needs as they grow, with mum’s producing different amounts depending on how hungry their little one is.

The National Childbirth Trust reports that breastmilk can also change in response to the baby or mother’s illness, with increased immune cell levels to aid recovery.

NCT breastfeeding counsellor Joanna Daniels said: “Breast milk is an ever-changing live substance that responds to the baby.  

“When a baby is ill it’s likely that the mother’s milk changes to increase the number of antibodies and leukocytes which help protect her baby from illness.  

“It’s likely that the baby passes the infection to the mother when breastfeeding and her body responds.”

Rebecca shared her amazement in a TikTok video which has since garnered over 400,000 views and 40,000 likes.

Other mum’s flooded the comments to share their experiences with colour-changing breast milk. 

One quipped: “Magical!

“Mine goes so watery it’s almost blue when it’s hot.”

Another added: “Mine went blue and greenish when my son had a nasty cold.

“It’s amazing what our bodies can do.”

Others called breast milk “liquid gold” and shared their astonishment at the power of the human body.