The normal range of triglycerides is 0.45-1.69 mmol/L, so a triglyceride measurement of 2.9 mmol/L is not very high and can only be considered mildly elevated. Triglycerides are an important component of blood lipids, and their increase is mainly due to familial hypertriglyceridemia, as well as a high intake of fatty foods in the diet. In addition, it can be secondary to certain diseases, such as diabetes, hypothyroidism, pancreatitis and other conditions. If the triglyceride level is 2.9 mmol/L, patients are generally advised to pay a little attention to their diet, that is, not to eat foods with high fat content as much as possible, and not to take lipid-lowering drugs, and to review their blood lipid level regularly.