How true is it that breast milk adapts to your baby’s individual needs?

Breastmilk can vary significantly in its appearance; sometimes it’s white and creamy, sometimes yellowish and thin, sometimes even bluish-clear. It’s all perfectly normal. Scientists studying mothers who tandem breastfeed both a newborn and toddler find that the breasts produce two different kinds of milk for the two children, including colostrum for the newborn. And with premature babies, miraculously the breasts produce milk even higher in growth hormones, nitrogen and protein.