Human milk contains a large amount of vitamin C, which can meet the needs of newborns’ early growth and development. Vitamin C has been proven to have multiple functions such as preventing scurvy, treating hypoxic-ischemic encephalopathy and preventing placental abruption. This article provides an overview of the content of vitamin C in human milk in different countries/regions, the factors influencing it and its health effects on infants, hoping to provide a reference for the development of infant formula milk powder.

The balance of scalp microecological environment is very important to scalp health. Some scalp disorders may be associated with the imbalance of microbial communities. As beneficial live microorganisms, probiotics can regulate the intestinal flora, and then affect the immune system of the scalp through the gut-skin axis, which have a positive impact on the health of the scalp. Studies have shown that probiotics have the potential to maintain scalp health. This paper summarizes the mechanism of action of probiotics on the skin and their auxiliary role in regulating hair loss and dander.

This study analyzed the effect of season on the nutrient and fatty acid composition of yak milk. Yak milk samples from the Qinghai-Tibet Plateau in summer and winter (n = 18, each) were selected for this study. Results showed that the contents of protein, lactose, non-fat milk solid, ash, vitamin A and main trans fatty acids (trans-9 C_18:1 and trans-9,12 C_{18:2 n-6}) were significantly lower in winter than in summer (P < 0.05), while the contents of fat and main fatty acids (C_16:0, C_17:0, C_18:0, cis-9 C_16:1, cis-9 C_18:1 and cis-9,12 C_{18:2 n-6}) in yak milk were significantly higher in winter than in summer. This suggests that the nutrient and fatty acids composition of yak milk from the Qinghai-Tibet Plateau are influenced by season.