A1 milk is not good. Drink A2/Desi cow milk if you can afford, else you would spend that money as medical expense later! Read further to know why

Desi cows produce A2 protein which do not release bcm7 and these also produce a amino acid called proline which inhibits creation of bcm7 in humans 

while A1 cows produce A1 protein which release bcm7 and they do not produce any other thing that could inhibit absorption of bcm7 in humans. This leads bcm7 to get into our intestine after digestion which can't be completely disposed off by humans

bcm7 is found to have lots of ill effects on humans not limiting to diabetes, indigestion, limiting brain development, stroke etc. 

I am referring to articles and not claiming anything on my own. Please read below for more knowledge on what I am saying:

Understanding A1 and A2 milk behavior:

https://kamdhenugvppexam.org/document/Milk%20Proteins%20and%20A1-A2%20Milk.pdf

https://www.jagranjosh.com/general-knowledge/difference-between-a1-and-a2-milk-1542374870-1

https://www.researchgate.net/publication/334732932_Research_on_A1_and_A2_milk_A1_milk_is_not_a_matter_of_health_concern

In this article, they claim A1 milk has no side effects because it is not reported in EFSA report and hence other researches are not correct which is bad.

http://www.healthnz.co.nz/milk.htm

This article from Newzeland says, A1 milk could lead to type 1 diabetes and heart related issues and despite that industry is supporting A1 milk. 

https://keithwoodford.wordpress.com/2010/02/20/russian-breakthrough-unravels-bcm7-mysteries/

This article show the research from Russia and publication of article in international forum peer reviewed by 12 researchers from 4 different organisations where it says milk from a1 cows could lead to slow digestion, getting bcm7 into our blood and not able to dispose it completely and lead to low brain development in kids etc..

https://keithwoodford.wordpress.com/2014/04/02/human-health-implications-of-a1-versus-a2-beta-casein-theory-and-current-evidence/

This article says:

A1 beta-casein has been implicated in a range of human health conditions, many of which have an auto-immune element to them. The health conditions include Type 1 diabetes, heart disease, mental health conditions, behaviour, child development, sudden infant death syndrome, and milk intolerances.

So please switch to A2/Desi cow milk if you can afford.

If you drink more a1 milk you could switch to less a2 milk or more diluted a2 milk which could help you improve your health condition