Eating an apple a day can reduce the risk of dying of coronary heart disease by half, thanks to flavonoids contained in apples. Flavonoids are natural antioxidants, which play an anti-atherosclerosis role by inhibiting the oxidation of low-density lipoprotein. In addition, pectin in apples can also reduce cholesterol levels, so it is beneficial to prevent atherosclerosis. Although the causes of obesity mostly vary from person to person, in the view of Chinese medicine, obesity is caused by liver-water imbalance, spleen-stomach transport, stagnant water and dampness, and cessation of phlegm and fat. Therefore, we should start with diet therapy and adjust our internal functions.