- Introducing intestine healthy protector for children exposed to fast food and junk food. Healthy body, healthy mind! Once intestines become healthy, level of immunity improves, and the happiness hormone serotonin secretion also increases. The best way to protect intestinal health is to increase the beneficial bacilli in the intestines. Intestinal health protector - Lactobacilli that stay alive in intestines 'ActiBalance Kids' is probiotics which helps improve intestinal functions and increase immunity. If mothers can't be around at all times, put one in the child's pocket.