Fish oil has many health benefits, including being rich in omega-3 fatty acids. Many fish oil capsules are on the market, but a lot of them leave you with a fishy aftertaste. Sometimes even fishy breath. That is not attractive at all. The best way to find a brand that doesn't have this annoying side affect is to test a few out for free. You can start with Sundown Naturals. They make a brand of fish oil that they are currently giving away for free.