my name is roberto vargas and i'm here representing ucsf engagement health policy program. and we are not as university taking a stand on the soda tax, but what i am here to say is that since 2010 we've been partnering with the department of public health and community-based organizations to address chronic disease, health disparities here in san francisco. this is one of several priority health issues that we've chosen to address by leveraging the research resources of the university and it's because it's one of the health outcomes that impact san francisco the most when we look at health disparities across the city. and in looking at ways that we can address this problem, we found that it's really important that we do education for folk about what foods are unhealthy with sugary drinks being at the top of that list. we've also found that it's really important to look at how to change the environment for folk in communities that are most impacted which includes making healthy foods more available and local retail as well as looking for ways to look at policy and regulation