Lard and vegetable oil will be fat if consumed in excess over a long period of time. Lard and vegetable oil are rich in fat, fat is an important source of human energy, is an important component of human tissue, has important physiological functions, moderate consumption is beneficial to the body. Excessive consumption of lard or vegetable oil will cause excess energy, not consumed excess fat stored in the adipose tissue, too much storage will appear obese. Lard in the saturated fatty acids for 43.2%, significantly higher than vegetable oil (average) 10.3%, while lard contains cholesterol 93mg/100g, saturated fatty acids more significantly affect the level of blood lipids, resulting in hyperlipidaemia, elevated serum cholesterol levels are also important factors in atherosclerosis, compared to the overconsumption of lard on the body is relatively more harmful.