Brown and white adipose tissue is a source of mesenchymal stem cells, specifically Adipose-Derived Stem Cells (ADSCs). It is an inexpensive, unlimited reservoir of stem cells. From 300 ml of adipose tissue, 2-3 × 108 ADSCs can be obtained. This is between 100 and 1000 times more than mesenchymal stem cells from the bone marrow In addition, they can be easily obtained with no ethical dilemmas pertaining to their use Moreover, the high content of ADSCs in adipose tissue precludes the need for long in vitro culture, which reduces the risk of chromosomal abnormalities