Infant Feeding---Breast feeding Fat Long-chain lipid acid 1 Linoleic acid↑ Carbohydrate Lactose Bacillus bifidus↑ Vitamin ADE↑Infant Feeding---Breast feeding Fat Long-chain lipid acid ↑ Linoleic acid ↑ Carbohydrate Lactose↑ Bacillus bifidus↑ Vitamin A/D/E ↑