Eli5: How do we know obesity is genetic and runs in the family? Is there something written in the DNA?

Question

Probably a stupid question but I’ve always wondered this.

In: Biology

Answer 1

[8 Things About You That Increase Your Child’s Risk for Obesity and Unhealthy Eating Habits](https://www.huffpost.com/entry/diet-and-nutrition_b_4827359)

Parents tend to pass bad eating habits on to their children.

[Immigrants gain weight when they move to a country where the government subsidizes high fructose corn syrup. ](https://www.webmd.com/diet/news/20041214/for-immigrants-america-is-land-of-obesity#:~:text=Weight%20Gain%20Among%20Immigrants&text=Foreign-born%20adults%20were%20less,risk%20factor%20for%2)