The nutrient that is not digested but stimulates intestinal muscle contractions is fiber. Fiber is a type of carbohydrate that may be soluble or insoluble.
Starch is digested by ptyalin.
Segmentation- series of stationary rhythmic contractions and relaxations of rings of intestinal smooth muscle; mixes intestinal contents. Segmentation mixes the cyme with intestinal secretions and brings it into repeated contact with the absorptive epithelium. The slow passage insures nutrient absorption.
potein
Protien
Nothing is digested by the liver in the digestive system at all. So there is basically no answer to it.
It is starch! I think
Saliva
Starch (carbohydrates) is broken down (digested) to maltose by salivary amylase.
CelluloseAnswer:To be a nutrient a food material has to be digested and incorporated into the body as stored fat, converted to muscle or other protein, or converted to energy. So no nutrient as "not digested"/ Non-nutrient materials which provide other functions are fiber and water, and minerals asn trace chemicals such as salt, iron, zinc. Vitsmins can be regarded as supplimental to the body's own production. fibre can not be digested
fats
Digested food should be soluble in the aqueous environment of the gastrointestinal tract, particularly in the small intestine where nutrient absorption occurs. Enzymatic actions break down food into smaller molecules, such as amino acids, fatty acids, and simple sugars, which then dissolve in the intestinal fluids. This solubility is essential for the efficient absorption of nutrients into the bloodstream.
Because it is in a form which is already digested e.g honey. Honey is already digested by bees so it is far more easier for the human digestive system to absorb.