Fat by evolution?

Question

some scientists took lizards that only ate living things to a place where they could only eat plants and in 35 years time they evolved to having changes to them that made them perfect for that environment.

is that the same way dna is changing making people fat? if a family was overweight eaters does that pass on down the line making evolution happen?

Answer 1

yes evolution is faster then what you think and it is happening from the way we eat and live.

Answer 2

Genetics do play a role in obesity but it's mostly learned behaviors like over eating and cooking skills.