Reported about 1 year ago
According to Dr. Huang Xuan, the 'old person smell' that typically emerges after the age of 40 is caused by a substance called 2-nonenal, produced from the oxidation of fatty acids in the body. People can reduce this smell by consuming more probiotic yogurt, yogurt, whole grains, fresh fruits and vegetables, healthy proteins, and increasing water intake to help detoxify the body. Dr. Huang Xuan also recommends maintaining good hygiene habits, using deodorants, and paying attention to the dietary habits of elderly individuals to eliminate 'old person smell'.
Source: YAHOO