Listen in as Dr. Mike provides the answers to a wealth of health and wellness questions. Here you'll find the answers to a wealth of health and wellness questions posed by Healthy Talk fans. Listen in because what you know helps ensure healthy choices you can live with. Today on Healthy Talk, you wanted to know:Do you think Columbia University should control what Dr. Oz promotes?Dr. Mike's gut answer is no. If anything, he should be a little more self-censored and take responsibility for what he is saying and promoting.I saw on CNN Health that people with cancer in low income neighborhoods have worse outcomes. Other than access to healthcare, why is this?This is a very good, yet very tough question. First of all, the problem is access to healthcare. Everyone should have access to doctors, hospitals, and treatments. This might be a better question for an epidemiologist. Should I take blood tests before taking any supplements?Yes, blood tests help give a better understanding of what's going on in your body, and doctors can use that information to help you determine which supplements might be of use.If you have a health question or concern, Dr. Mike encourages you to write him at askdrmikesmith@radiomd.com or call in, toll-free, to the LIVE radio show (1.844.305.7800) so he can provide you with support and helpful advice.