Fish oil is an oily product extracted from fatty fish, rich in unsaturated fatty acids, suitable for people with three highs and people with arteriosclerosis. After taking fish oil for one month, the body may produce some changes, but due to the relatively short time of taking fish oil and the different physical conditions of each person, most people may not have obvious perceptible changes, some people may appear weight loss, mental stress reduction and other changes. Fish oil is rich in DHA and EPA, which are helpful in regulating blood lipids, especially for people with three highs and atherosclerosis, etc. These people may experience some changes after taking fish oil for a month, but the changes are not too obvious, because fish oil is not a medicine, and it does not take long to take for a month, so most people will not experience significant changes. Fish oil has a satiating effect, and can also reduce the heart rate and sympathetic sensitivity, after taking it for a month may appear weight loss, mental stress reduction and other performance, nervousness, anxiety may be somewhat better. It should be noted that for those who are allergic or intolerant to fish oil, consumption of fish oil may lead to diarrhea, abdominal pain, rash, etc. Patients with liver disease may have an increased tendency to bleed if they consume fish oil. Fish oil is also not suitable for organ transplant recipients and AIDS patients, as it may reduce the activity of the immune system and increase the chances of infection. Therefore, fish oil is not recommended for any of the above groups. Usually, the unsaturated fatty acids in fish oil can be obtained from food, commonly found in onions, cauliflower, kelp, sea fish, oranges, yogurt, etc. With a normal diet and balanced diet, additional fish oil supplementation is generally not required. Some irregular fish oil, in the production process of raw materials vary, long-term consumption may cause adverse effects on gastrointestinal function, so you need to choose the regular fish oil.