Yes. I say "contribute" for a reason.

Most corporations in the United States that produce milk, produce absolute shit. I don't drink it, neither do members of my extended family. They have a child on the autism spectrum - removing dairy and gluten from his diet significantly improved his behavior.

Let's face it - cow milk is not the same as human breast milk. Especially with Corporations using genetically enhanced feedstuffs and adding hormones that can make young boys grow tits.

I go off of experience. Not Peta.

As far as studies go, one was in the works:

https://clinicaltrials.gov/ct2/show/NCT02911194

I'm having a very difficult time finding the recorded results.