The main reasons for low LDL are as follows: (1) Diet, if you eat a lot of vegetables and fruits in your diet, but eat little or no meat or fatty foods, it will cause low LDL. Second, weight, low weight or body mass index is less than normal people, will also appear in the phenomenon of low LDL. Third, oral medications may also cause low LDL results, such as statin drugs, atorvastatin calcium tablets, resuvastatin tablets and other drugs, have the effect of lowering blood lipids, especially can reduce LDL, so it is possible to lead to the consequences of low LDL. So low LDL can be a result of diet, weight, medications, etc.