The acetal can be used to compensate for liver kidneys, spleen stomachs and coughing, which can be very beneficial to people with liver and kidney deficiencies. Anemic herring also cures fretilation, the generation of breast-milk, etc. Mother-to-mother and woman-to-woman consumption of herring, which is a nutritious food that both supplements and does not cause overnourishment and leads to obesity. It is a good product of haemorrhage, temperament and welfare. Congenital achromesis contains a large amount of unsaturated fatty acid and has good prophylactic and curative effects on hypertension, coronary heart disease, artery sclerosis and geriatric dementia, memory loss and amnesia. Older people often eat catfish, and there is some benefit in combating ageing and increasing longevity。