Do you use fasting to test blood lipids?

Lipids are neutral fats in plasma (Triglycerides and cholesterol) and lipids (phospholipids, glycolipids, sterols, and steroids). After eating, fats are hydrolyzed in the small intestine. After digestion products are absorbed, triglycerides, cholesterol esters, and phospholipids are synthesized in mucosal cells to form chylomicrons. They then become smaller and denser and are converted into very low density lipoprotein, low density lipoprotein, high density lipoprotein, and lipoprotein a. High calorie, high fat, high saturated fatty acid diet promotes cholesterol synthesis, so that its blood concentration increases. Hunger, low calorie diet or liver absorption of cholesterol more, can inhibit reductase activity, thus reducing cholesterol synthesis. Therefore, eating has a greater impact on the test results, blood lipids need to be fasting for at least eight hours.