Researchers at Cornell University have identified a family of microbes called Christensenellaceae that appear to help people stay lean—and having an abundance of them, or not, is strongly genetic.
Someday, it may be possible to have the Christensenellaceae clan adopt you, however. Mice that received transplants of the bacteria gained less weight than untreated mice eating the same diet. The study was published in the journal Cell this month.
Also read: Choosing low-carb foods can help your health