Fruits that have the least amount of soluble fiber are grapes, watermelon and cantaloupe. They only have 0.2 to 0.4 grams of soluble fiber and less than 1 gram of total fiber in a typical serving. Oranges have the most, with one small orange providing 1.8 grams of soluble fiber and 2.9 grams of total fiber.
Glucagon â Glucagon is a hormone involved in carbohydrate metabolism. Produced by the pancreas, it is released when the glucose level in the blood is low (hypoglycemia), causing the liver to convert stored glycogen into glucose and release it into the bloodstream. Gonads â A gonad is an organ that makes gametes (sperm and egg cells).
1 Oxytocin, most of which is released from the paraventricular nucleus in the hypothalamus. 2  Oxytocin is one of the few hormones to create a positive feedback loop. 3  For example, uterine contractions stimulate the release of oxytocin from the posterior pituitary, which, in turn, increases uterine contractions.