The level of in the bodies of the old is much higher than that in the bodies of the young. The high level of cholesterol can endanger the human body and cause various diseases, such as coronary heart disease and arteriosclerosis. Cholesterol is the important material of the synthesis of bile acid and vitamin D and the formation of cell membrane. The old usually depend on drugs and medicines to decrease cholesterol. In fact, some common foods in our daily life can effectively lower cholesterol for the old. These foods mainly include soy bean products, garlic, marine fish, tea leaves and white gourd. 

Eating soy bean products moderately can help the old lower the level of cholesterol effectively. Soy bean products contain amino acids needed by the human body. According to the research in Italy, the protein contained in soy bean can neutralize the bad effects of high fat diet. The researchers have proved that one cup of soy bean milk a day can decrease cholesterol in human body by 19%.

Garlic plays an important role in transforming bad cholesterol into good cholesterol in human body, which can prevent cardiovascular disease. In addition, the old can kill the toxins in their bodies and improve the immunity to various diseases by eating garlic.

Marine fish contains a lot of high-quality unsaturated fatty acid which is very effective in lowering cholesterol in the blood. People who frequently eat fish can be rarely attacked by coronary heart disease. can be resolved into various chemical substances by enzyme in human body to resist inflammation, high blood pressure and pain for the old. However, the fish oil which can lower cholesterol can only be found in mackerel, salmon, menhaden, sardine and tuna.

Tea leaves contain many beneficial nutrients the human body needs. Drinking tea can effectively help the old lower cholesterol in the blood and prevent atherosclerosis. Therefore, the old can drink tea moderately to decrease the level of cholesterol and keep their bodies healthy.

White gourd contains much water and low calories. Therefore, the intake of white gourd can not only reduce the weight of human body, but also decrease cholesterol. In addition, the absorption of much water can improve urination for the old.

In addition, the old should frequently eat the foods containing antioxidants like beta-carotene and vitamin E. The antioxidants can effectively stop the transformation of good cholesterol into bad cholesterol.