Where?
not everything needs an extravagant scientific analysis. Environmental factors may play a small role but it isn't the sole reason a lot of people in the hood eat like shyt. It shouldn't be the role of the state to teach people that McDonald's is bad for you, that's absurd. Whether you are rich or poor, if you are obese it's because you make poor choices when it comes to food. It's that simple.
Sorry, but it's not racism making people go get half fried chicken and pork fried rice everyday, just like it's not racist for Chinese people to sell it to them.