doctor, doctor give me the news i ve got a bad case of loving you feeling very 80s when i hear that. feeling good when i hear that. takes me back. takes me back to college. doctors recommended eating oily fish to keep your heart healthy. many americans skip filets and pop fish oil pills. last year, americans spent more than $8 billion, with a b, on fish oil supplements. as abc s dr. richard besser reports, that may be money down the drain. fish oil may support heart health. promotes a healthy heart. omega-3 promote as healthy heart. reporter: $740 million, that s how much we spend on them a year. fish oil capsules. containing the substance heart doctors swear by, omega 3 fatty acids. look at the box. the packaging says the capsules support a healthy heart and may reduce coronary heart disease. but that groundbreaking new study says the proof is in and