Can cod liver oil be taken every day?

Generally, fish liver oil should not be taken every day, as it may adversely affect the body. The specific analysis is as follows:

Fish liver oil is a compound preparation primarily containing vitamin A and vitamin D, used for the prevention and treatment of night blindness and rickets. However, it must be taken according to the dosage recommended by a physician and should not be consumed daily. Daily consumption may lead to vitamin toxicity, which can cause various discomforts such as skin itching, chapped lips, and swelling. Some individuals may also experience symptoms like fever, headache, and joint pain, all of which are detrimental to health.

In daily life, all medications should be used under the guidance of a doctor to avoid self-medication that could negatively impact health.