Just eat meat.

Created by Michael Goldstein (@bitstein)

Yamnaya

[…]

Ancient DNA reveals these migrants were well nourished, tall and muscular. Some archaeologists also argue that the warrior tribe consisted of skilled horsemen.

[…]

‘It looks like they lived mostly on meat and milk products,’ says Professor Kristiansen.

[…]

‘They were healthier and probably physically quite strong.’

Joe Pinkstone, “The most violent group of people who ever lived: Horse-riding Yamnaya tribe who used their huge height and muscular build to brutally murder and invade their way across Europe more than 4,000 years ago”, The Daily Mail, March 29, 2019