The main advantage of omega-3 fatty acids is that they promote heart health by reducing triglycerides and fighting inflammation.

fish oil does not directly burn belly fat; it may even help a little when combined with a healthy diet and exercise.

Fish oil can begin to work in 2 to 4 weeks, but the full effect can take 2 to 3 months.

Fish oil can reduce bad fats called triglycerides, but it usually doesn’t lower bad cholesterol (LDL) and may even raise it a little in some people.