There are plenty of life long vegetarians in India so this article seems nonsense. I would agree that people should watch their diet and make adjustments but categorically declaring that we need animal fat doesn’t make sense.
Milk cows are forcibly impregnated year after year to keep their milk flowing. All this shortens their lifespan to 4 years instead of their natural 20.
Milk is a product of cruelty.
In India, vegetarianism is usually synonymous with lacto vegetarianism