Interaction between dietary fiber and nutritional components
Consumption of dietary fiber can affect the intake of nutrients in a variety of methods. It is speculated that the appearance of dietary fiber in the upper digestive tract can result in a decrease in the absorption rate of nutrients in the intestine. The physical and chemical factors of dietary fiber, such as fermentation, expansion capacity, binding capacity, viscosity and gel formation, water holding capacity and solubility, all affect nutrient absorption.
Feed supplementation with different fiber content has several effects on the bioavailability of minerals in the organism. Minerals are inorganic nutrients important to human and animal nutrition, such as calcium, chlorine, copper, iodine, iron, magnesium, manganese, molybdenum, phosphate, potassium, selenium, sodium, sulfate, water and zinc.
Dietary fiber intake affects the mechanisms by which nutrients are absorbed in human and animal diets. The main physical and chemical properties measured in monogastric nutrition are solubility or fermentability, cation exchange, hydration, viscosity, particle size and adsorption properties of organic compounds, all of which affect nutrient absorption. Dietary fiber forms vary according to physiological and biochemical properties, thus affecting the bioavailability, microbial composition and gastrointestinal function of the nutrients. Dietary fiber and prebiotics increase intestinal acidity and constructive synthesis of SCFAs by regulating blood glucose or insulin levels and fecal swelling effects, reducing intestinal transit time, stimulating intestinal microbial growth, affecting host animals, and increasing blood parameters. Dietary fiber may affect nutrient absorption and the dynamics of the intestinal flora. However, more research is needed to determine whether the regulation of the composition and function of the human gastrointestinal microbiota translates into health benefits.