endotoxin (enÂ´dÅtokÂ´sin), n a nondiffusible lipid polysaccharide-polypeptide complex formed within bacteria (some gram-negative bacilli and others); when released from the destroyed bacterial cells, endotoxin is capable of producing a toxic manifestation within the host.
They are low in fat and contain no cholesterol. Oat bran contains about 5.4 grams of protein in a 1 ounce serving, while whole grain oats contain 4 grams of protein.
1 For constipation: 20 to 25 grams of wheat bran per day. It appears that 40 grams per day is no more effective than 20 grams per day.  For the treatment of irritable bowel syndrome (IBS): 30 grams of wheat bran per day for up to 12 weeks.