Microbiota in the gut play essential roles in human health. Prebiotics are non-digestible complex carbohydrates that are fermented in the colon. yielding energy and short chain fatty acids. and selectively promote the growth of Bifidobacteria and Lactobacillae in the gastro-intestinal tract. https://www.roneverhart.com/Diablo-DSP-7LP-Low-Power-Vehicle-Loop-Detector/