There are several reasons why bone marrow is better than fat. There are no FDA issues with bone marrow. The FDA has clearly stated fat stem cells are a drug and require FDA control. Fat stem cells are not homologous when placed into the spine or a joint. This means the FDA doesn’t think any doctor should put adipose stem cells into those areas. Published research indicates bone marrow stem cells work better to regenerate arthritic joints than fat stem cells. The total number of M.S.C.’s per unit volume is about the same in both tissues. Research has also shown there are fewer complications obtaining M.S.C.’s from bone marrow than fat. Published research shows there is NO cancer risk from bone marrow stem cells. There is no similar research on fat stem cells. There IS research showing fat stem cells can actually promote the spread of a cancer you may already have in your body.