Therefore it is important to know which foods contain these materials in any quantity that will affect absorption. Leavening and cooking destroys the phytic acid to some degree. This is very much linked to enzyme activity although other factors also play a part. A reasonable stomach acidity also is essential for proper digestion, especially of liquids. Proper intestinal agitation is also necessary.
Intestinal hurry can be due to several things.
Inflammation of the gut wall is the commonest invasive disruption. This may also arise from chemical irritation from incomplete digestion products or residues in food such as herbicides, pesticides, etc. It may also be some aspect of the food itself such as alkaloids in some plants, natural plant poisons and toxic breakdown products of meat and fish. Fibre plays a crucial role in combating the irritation of gut contents and binds very potentially dangerous materials, preventing contact with the gut wall. Any process that destroys or minimises the villus structure of the gastro-intestinal cell wall will adversely affect absorption.