Recently several studies have emphasised the importance of serum glucose concentrations in the regulation of gastrointestinal function.

It has been suggested that hyperglycaemia reduces gastrointestinal function through inhibition of the vagal cholinergic system.

In several studies it has been suggested that gastrointestinal function is related to blood glucose concentrations.

It is possible that metabolic, hormonal, or neural changes secondary to hyperglycaemia, rather than glucose itself, modulate gastrointestinal function.

Disease states affecting liver metabolism or gastrointestinal function will also have an effect.

Tube feedings are used more frequently than parenteral nutrition, primarily to preserve gastrointestinal function.

Consideration should also be given to the patient's medical condition, gastrointestinal function, and financial resources.

Preliminary research indicates that nine compounds found in ginger may bind to human serotonin receptors which may influence gastrointestinal function.

Some vegetables also contain fiber, important for gastrointestinal function.

They exert their autocrine and paracrine actions that integrate all of gastrointestinal function.