Most people believe that artichokes are vegetables, but they are actually thistles, which makes them flowering plants. For years they have been used for medicinal purposes such as lowering blood sugar, increasing liver and heart health, and improving digestion. Just one medium sized artichoke has 6.9 grams of fiber, which work to move things further along in the bowel and lessen constipation issues. They also have vitamins B6, C, and K, as well as potassium, calcium, magnesium and zinc. Research has also proven that they have a prebiotic effect, which promotes good gut health and consistent bowel movements.