Some of the health benefits of rhubarb include its ability to aid weight loss, improve digestion, prevent Alzheimer’s disease, stimulate bone growth, avoid neuronal damage, increase skin health, prevent cancer, optimize metabolism, improve circulation, and protect against various cardiovascular conditions.urthermore, the impressive amount of antioxidants in rhubarb ensure that free radicals don’t cause heart disease and a wide range of other dangerous health conditions. Digestion: Our digestive system plays a huge part in our overall health, so it is important to keep the digestive system healthy and regulated.