The food gap isn't going anywhere.
In the United States, there is a positive correlation between income and one's ability to eat a nutritious diet. It's been stated again and again; eating healthy, well-balanced meals is expensive, a luxury for the rich. While the population as a whole is eating clean-er than they were twenty years ago, the disparity between the kinds of groceries poor and rich people eat is widening. It's not only affording quality food that's the problem, however. In certain low-income areas, it's impossible to even access healthy groceries, leading to creation of food deserts.