Eating well on a low budget?

Adam Drewnowski and his colleagues at the University of Washington have been doing a series of papers on the cost of food per calorie.  The latest is a research brief answering the question, “Can low-income Americans afford a healthy diet?”  Not really, they say.  Federal food assistance assumes that low-income people spend 30% of their income on food but that assumption was based on figures from an era when housing, transportation, and health care costs were much less.  As Drewnowski has shown repeatedly, healthier foods cost more, and sometimes a lot more, when you look at them on a per-calorie basis.