Breast feeding maintains fat cells in a heat-generating state.

Researchers Find a Special Lipid that Controls Fat Development in Babies

Researchers discover a lipid in breast milk that functions as a signal in fat tissue to control fat tissue development in babies.

Figure 1. The switch from beige adipose to white adipose during development. Beige adipose tissue (BeAT) have many mitochondria and small lipid storage droplets (left). White adipose tissue (WAT) cells have very large lipid-storage droplets that take up most of the cell and have very few mitochondria. BeAT uses energy to generate heat. WAT stores energy in the form of lipids.
Figure 2. AKG molecules have the same group at the end (a glycerol moiety) and then fatty acid chains of different lengths with or without a double bond. The first structure is batyl alcohol with a 18-carbon fatty acid chain, the middle is selachyl alcohol with an 18-carbon fatty acid chain with one double bond, and the last is chimyl alcohol with an 18-carbon fatty acid chain. These are the 3 AKG detected in human breast milk.

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