Omega-3 supplements have been proven to support heart and brain health and to reduce inflammation. That’s why millions of people take these fish oil pills on a daily basis. The unhealthy side-effect is devastating overfishing of fish species like menhaden, which are crucial to the aquatic ecosystem, and has landed others, like whale sharks, on the endangered species list. Here’s a company that has developed omega-3 supplements based on algae that are grown in ponds.