Is it lactose? Galactose, bovine somatotropin or mRNA of milk?

http://www.nature.com/bjc/journal/v112/n1/full/bjc2014544a.html

Read the comment on Michaelsson's paper in the BMJ

http://www.bmj.com/content/349/bmj.g6015/rr/804415

And never forget that milk is not only a food but a genomic program injected per os in the baby to grow.
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4428476/

And some general news about cow milk and pseudo-milks
https://www.newscientist.com/article/mg22730310-200-time-to-ditch-milk-exploring-the-dairy-dilemma/