There are other studies done on people who gestated and were born through the lean years of WW2 in Europe. They still have trouble with weight 50 years later, statistically. It seems like that prenatal and early starvation permanently changed how their bodies interact with food.

I think there may have been a stress response difference too but can't remember exactly.

Source: Why Zebras Don't Get Ulcers by Sapolsky. This whole book is about stress.