Every year, millions of people take dietary supplements hoping to improve their health. The problem is, most of us have no idea what’s in the pills we’re taking. This is particularly true for omega-3 fatty acids, one of the top three supplements I recommend for women of all ages. So many of the omega-3 products on the shelf are low-quality, rancid oils that are a waste of money and can cause more harm than good. On top of that, there are serious issues around the sustainability of the fish oil production process, which is the traditionally recommended source of omega-3.