telman
Loose stools have a variety of causes, including:
Infections – viruses, bacteria, parasites
Toxins - often referred to as 'food poisoning.' Toxins may be produced in foods as bacteria grow. These toxins are responsible for the associated vomiting and diarrhoea.
Malabsorption - lactose intolerance, celiac disease (sprue) or gluten malabsorption, cystic fibrosis, cows milk protein intolerance, intolerance to specific foods (beans, fruit, etc.) There are other less frequently encountered causes of malabsorption.
Inflammatory Diseases of the Bowel – Crohn's disease, ulcerative colitis
Immune deficiency
Medications –
Antibiotics , laxatives (especially those containing Magnesium), chemotherapy
A dysfunction ileocecal valve
Other things, probably