Grocery store access and obesity

From the LA Times:

Better access to supermarkets — long touted as a way to curb obesity in low-income neighborhoods — doesn't improve people's diets, according to new research. The study, which tracked thousands of people in several large cities for 15 years, found that people didn't eat more fruits and vegetables when they had supermarkets available in their neighborhoods.

Instead, income — and proximity to fast-food restaurants — were the strongest factors in food choice.