It is recommended to take fish oil between meals to achieve the best supplementation effect, and eating fish oil between meals will make the best bioavailability of fish oil, you can choose the time period is after breakfast and before lunch, that is, 10-11 am, or after lunch and before dinner, that is, 3-5 pm, this time belongs to the state of stomach emptying, eating fish oil can make the best bioavailability of fish oil. This is the time when the body is in a state of basic gastric emptying. Patients with gastrointestinal tract dysfunction may experience acid reflux, heartburn, nausea, vomiting and a series of other clinical symptoms and manifestations. For those with poor gastrointestinal tract function, it is recommended to take fish oil 30 minutes after meals to minimize side effects and irritation to the gastrointestinal tract.