frontFish is a great source of protein and healthy fats; however, many fish are contaminated with mercury.

Mercury is most harmful to the developing brains of unborn children and young children, affecting cognitive, motor and sensory functions.

The more mercury that gets into your body, the longer the exposure time, and the younger you are, the more severe the effects.

Dr. Holly discusses how mercury gets into fish and which species of fish contain the highest mercury levels, as well as other options for getting your omega-3 fatty acids.