High carrier protein can be caused by high lipid levels such as high total cholesterol levels, high serum triglyceride levels, high serum LDL cholesterol levels, and high serum very low-density lipoprotein cholesterol levels. However, if it is just a high carrier protein and the other lipid levels are normal, there is no major problem. The reasons generally considered for high carrier protein, that is, high lipid levels, may be related to diet and body weight. A diet that favors fats or proteins, such as fish, chicken, pork, etc., tends to lead to high blood lipids, and then the carrier protein may also be elevated. Also if you are overweight and have a high body mass index, you are also prone to high levels of carrier protein.