Most of us know we’re supposed to eat more fruits and vegetables and less processed food, but there’s a growing health movement that goes much farther, arguing that most of our modern diseases – diabetes, heart disease and many cancers – can largely be blamed on the animal fat in our diet. (See this recent story about the link between diabetes and a diet rich in red meat.)
Dr. T. Colin Campbell, an emeritus professor of Nutritional Biochemistry at Cornell University, is a key researcher behind this whole-food, plant-based diet push.
As its name suggests, Campbell advocates eliminating processed foods, oils, and animal protein, including dairy, in favor of plant-based protein. New York Times food columnist Mark Bittman has long championed a modified version of this – a “vegan before 6 p.m.” diet of meat-free breakfasts and lunches – as he promotes in his own new book, VB6.
Campbell, who is highly critical of the mainstream nutrition research establishment, makes the case that eating a whole food, plant-based diet can prevent some diseases and reverse the progression of many others, and he has decades of peer-reviewed articles to support his claims.
The message that there are concrete choices we can make to improve our health is an empowering one, and Campbell’s mission has increasing traction. Yet the whole-food, plant-based diet is still considered more extreme than what most mainstream health experts suggest, and cooking virtually all meals from scratch and eliminating many everyday food staples is not always an easy transition.
In putting so much emphasis on nutrition as the basis for illness, other complexities arise. For instance, does viewing the diet as a panacea for preventing or reversing disease create expectations for some patients that are impossible to meet? Where might this leave the millions of patients with genetic diseases or autoimmune diseases – which aren’t associated with lifestyle and diet in the same way?
Curious about these potential consequences, I asked Dr. Campbell directly. Here is an edited version of our conversation: Continue reading