For a regular healthy diet, it is recommended that of the total
calories eaten, no more than 30% should come from fat. However,
certain diseases and medical conditions can make it difficult
for the body to tolerate even that much fat, so a low-fat diet
may help people with these conditions.
Gallbladder Disease: Bile secreted from the gallbladder helps
the body break down and absorb fats. When gallstones or gallbladder
diseases are present, a low-fat diet is often used to prevent
complications.
Delayed stomach emptying (Gastroparesis) is a condition in which
the stomach empties food into the intestine too slowly. This can
cause bloating, nausea, and even vomiting. Normally, fat in foods
delays stomach emptying, so fats make gastroparesis worse.
Diarrhea can be caused by many conditions. When it occurs, it
can be aggravated by eating fatty foods.
Malabsorption of nutrients: Absorption is the transfer of nutrients
into the bloodstream from the intestine. In some diseases of the
pancreas and small intestine, patients have trouble absorbing
nutrients from the diet, including fat. A low-fat diet may help
to control symptoms until the cause of malabsorption can be diagnosed.
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