Does Fish Oil Leave a Bad Taste in Your Mouth? Here’s Why and How to Fix It
                                
                                
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                                    5 min read                                
                            
                                According to research, a significant percentage of fish oil supplements on the market may be rancid. Yes, fish oil can leave a bad taste in your mouth, and while often dismissed as a normal side effect, it can signal an issue with the oil's quality or how your body is digesting it.