There are two things that ProbioLite supplement does for its users; one is to relieve the symptoms of stomach distress, especially acid reflux and second is to improve the digestive health. The digestive system is one major system of human function which is essential for good immunity. If there is a digestive problem, no just the gut but the whole body suffers.Also, when digestion is improved, natural immunity is also improved. ProbioLite understands the significance of good digestive health and try to achieve it for its user. So that there is no compromise on his immunity.