In terms of addressing some of the most impacted communities and historically excluded communities - often of color, often low income - there is this adage in specifically African American communities that on every corner in low income neighborhoods you'll find a liquor store.

In fact, I don't advocate any particular diet for anyone. I think that's a very personal decision that people have to make. I will say this, however: There are more and more studies in terms of the health benefits of veganism; there are more and more studies that are showing that a properly executed vegan diet is highly beneficial for cleansing, for detoxing, in addition to lowering the risks for and even ameliorating chronic illness. We all have our own body constitutions and cultural food ways and personal tastes that determine what will work for us.

I think more and more foundations are putting resources into food activism. But I think that given the state of the economy, foundations won't be giving as much in general. For me it's about working with these existing institutions in communities that people already go to, that people trust, that they know, and determining how best they can play a role in the creation of local food systems and address the ills that are right around them in the community.

I don't necessarily think veganism is going to save the world.

I'm in San Francisco because of the energy, the ideas, and the fact that this is a great place for me to land. When I'm traveling and working nationally, I love coming back here.

Food historian Jessica B. Harris says African American cuisine is simply what black people ate. When I think about what my family ate, we ate what people think of as soul food on special occasions, on holidays, but our typical diet was leafy greens and nutrients and tubers - food that was as fresh as being harvested right before our meal. Whatever was in season, that's what we were eating. It was being harvested right from our backyard.

I think that the agriculture system in general is rooted in racism - consider that historically black labor on plantations was the backbone of the economy. These workers didn't reap the benefit of that system.