For thousands of years, Jains thrived on lacto-vegetarian diet in India. Ahimsa (Non-violence) is a core principle for Jains.
From past few years, Jains living in United States, Canada and many European countries have stopped consuming milk and milk products, after learning about the suffering of milk producing cows. In United States, Cows are slaughtered once they STOP producing Milk.
Vegan Jains is a great blog inspiring Vegetarian Jains to go Vegan. Please visit http://veganjains.com/ to know more about the growing Vegan trend among Jains .
Here are other interesting links related to Jains.