Is it safe to eat fish while pregnant? Is it safe to eat fish at all? We discuss new study.

You probably saw the headlines this week about Consumer Reports advising pregnant women to not just limit their consumption of tuna, but to avoid it altogether.  Why?  Because of the potentially high levels of mercury that could cause damage to the fetus. We'll talk to one of the experts from Consumer Reports who also happens to be a member of the FDA Food Advisory Committee.  You'll learn which fish are safe and which ones you may want to avoid. Also today, Dr. Walter Willett from the Harvard School of Public Health and Professor of Medicine at Harvard Medical School joins us.  Dr. Willett is also the author of the best selling book, Eat, Drink and Be Healthy.