Not Medical Advice: Stool that has an unpleasant smell, is soft and sticks to the side of the toilet bowl, or is difficult to flush, could indicate the presence of too much oil.
It can also be the sign of steatorrhea, wherein stools are sometimes also pale. This is a result of fat malabsorption.
For example, children with cystic fibrosis have mucus plugs that block the pancreatic ducts. The significant decrease or absence of the pancreatic enzymes, amylase, lipase, trypsin, and chymotrypsin limits fat, protein and carbohydrate digestion, result in steatorrhea due to fat malabsorption.
A research from the Monell Center suggests that people can use their sense of smell to detect levels of dietary fat in food. Find out more at DigitalJournal.com.
Tip! Find out the best foods to eat for healthy bowel movements at SFGate.