Deep-sea fish oil is not recommended for consumption after the expiration date. Deep-sea fish oil refers to the unsaturated fat components extracted from the bodies of fish and animals in the deep sea, and the main components are EPA (eicosapentaenoic acid) and DHA (docosahexaenoic acid). Deep sea fish oil, if it has expired, the nutrients in it will be lost, but also may breed bacteria or toxic ingredients, if you blindly consume expired deep sea fish oil, there is no health benefits, but may cause the body to appear food poisoning symptoms, such as nausea, vomiting, abdominal pain, diarrhea, dizziness, headache and so on. Therefore, it is not recommended to eat expired deep sea fish oil, found that deep sea fish oil has expired, you need to promptly discard the expired deep sea fish oil, do not continue to eat. Although deep sea fish oil has high nutritional value, it is a dietary supplement and cannot replace drugs for diagnosis, prevention and treatment of diseases. Pregnant women, breastfeeding women, children, and those undergoing treatment for illnesses need to consult a doctor before consumption.