It's what your definition of starvation is. Anorexics? We have people who die of anorexia but I wouldn't call that classic starvation.
Malnutrition? Yes there are people who don't eat properly and that stresses their body causing heart attack, etc. Food stamps aren't going to help.
And then we have dysfunctional adults who fail in feeding their children for one reason or another, usually drug abuse. These people are likely to spend their food stamp money on drugs.
But you really don't see skinny people in poor neighborhoods, quite the opposite.