![]() ![]() "Revealing the bacterial butyrate synthesis pathways by analyzing (meta)genomic data". ^ a b Vital M, Howe AC, Tiedje JM (April 2014).^ "High-Fiber Diet - Colon & Rectal Surgery Associates".Health Science Center, University of Texas. ![]() ![]() ^ "Nutrition in Preventative Medicine".Food and Agriculture Organization of the United Nations. ^ "Chapter 3: Calculation Of The Energy Content Of Foods – Energy Conversion Factors"."Macronutrients as sources of food energy". Bacterial metabolism of soluble fiber also produces short-chain fatty acids like butyric acid, which may be absorbed into intestinal cells as a source of food energy. Soluble fiber is marketed as serving a prebiotic function with claims for promoting "healthy" intestinal bacteria. Soluble fiber can be metabolized by bacteria residing in the large intestine. ![]() Insoluble dietary fiber is not absorbed in the human digestive tract, but is important in maintaining the bulk of a bowel movement to avoid constipation. It is necessary for the absorption of macronutrients and micronutrients, but it provides no nutritional energy.ĭietary fiber from fruits, vegetables and grain foods. It provides the medium in which all metabolic processes proceed. Macronutrients that do not provide energy Oxygen
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