When you consume dietary fibers, it is not your body that breaks them down—it’s the bacteria in your large intestine! Important molecules produced by this bacterial activity are called short-chain fatty acids (SCFAs), which comprise a maximum of six carbon atoms along with atoms of oxygen and hydrogen. Your body absorbs around 95% of these SCFAs and puts them to work. Could fiber’s beneficial effects – including weight control, blood sugar balance, and a decreased risk of certain diseases – be attributed to the activities of SCFAs? Research is revealing more about how these molecules benefit your health as they travel around the body.