Arthritis is a generic term for more than 100 different disorders, such as osteoarthritis, rheumatoid arthritis, gout and fibromyalgia. Osteoarthritis, or wear-and-tear arthritis, is the most prevalent and disabling of all chronic conditions, affecting approximately 80 percent of all U.S. adults over 65.
The gastrointestinal tract has two primary nutritional functions. The stomach, or gastric region, starts the process of digestion, preparing food for assimilation in the small intestines. The intestines sort through the digested components so they can be absorbed into the bloodstream, or passed through the alimentary canal to be excreted.