there is . if people Haryana, Punjab and Gujrat people ate meat , they would have reached 7 feet height now.
height is firstly dependent on genetics and then on nutrition.
these people have the genes to reach 7 feet (like African American basketball players) but due to non-veg diet they reach may be 6'3'' . if they did not drink huge amounts of milks then they would have reached just 5'10''
in toronto i met with a punjabi family , their son is 6'9'' and plays basketball. his coach told his parents to feed him meat to improve his game and so they did from age 12. he grew to a monstorous side. the father is 6'0''.
meanwhile on the other states the gene is already shorter , may be peak at 5'8''. if they ate meat in generations the peak would increase.
but due to vegetarian diet they could not reach the full height at cap at 5'5''.
Pottenger's Cat Study , read up on this.
he fed two group of cats from same lineage , different foods. in 9 generations they look completely different.
nutrient dense cats got bigger and stronger , nutrient low cats got very thinly , smaller and weaker.
he also saw a pshychological change. they bigger group was more aggressive, more forceful to mating , while the other group was, timid and almost behaved like nuter cats.
see any similarity , muslims always aggressive, always forceful on women , hindus timid, no attention from women.