MCTs (Medium chain triglycerides)

Medium chain triglycerides (MCTs) are partially man-made fats. The name refers to the way the carbon atoms are arranged in their chemical structure. MCTs are generally made by processing coconut and palm kernel oils in the laboratory. Usual dietary fats, by comparison, are long-chain triglycerides. People use MCTs as medicine.

MCTs are used along with usual medications for treating food absorption disorders including diarrhea, steatorrhea (fat indigestion), celiac disease, liver disease, and digestion problems due to partial surgical removal of the stomach (gastrectomy) or the intestine (short bowel syndrome).

MCTs are also used for “milky urine” (chyluria) and a rare lung condition called chylothorax. Other uses include treatment of gallbladder disease, AIDS, cystic fibrosis, Alzheimer's disease, and seizures in children.

Athletes sometimes use MCTs for nutritional support during training, as well as for decreasing body fat and increasing lean muscle mass.

MCTs are sometimes used as a source of fat in total parenteral nutrition (TPN). In TPN, all food is delivered intravenously (by IV). This type of feeding is necessary in people whose gastrointestinal (GI) tract is no longer working.

Intravenous MCTs are also given to prevent muscle breakdown in critically ill patients.

How does it work?

MCTs are a fat source for patients who cannot tolerate other types of fats. Researchers also think that these fats produce chemicals in the body that might help fight Alzheimer's disease.

Certain types of seizures in children.
Preventing muscle breakdown in critically ill patients, when given intravenously (by IV).
Alzheimer's disease.
Chylothorax (a rare lung disorder).
Nutritional support of athletic training.
Decreasing body fat and increasing lean muscle.
Improving the absorption of calcium and magnesium.

By Mouth:

For improving seizure control in children: MCT oil is used as 60% of the calories eaten.

MCTs are SAFE for most people when taken by mouth or given intravenously (by IV). They can cause diarrhea, vomiting, irritability, nausea, stomach discomfort, intestinal gas, essential fatty acid deficiency, and other side effects.

Taking MCTs with food might reduce some side effects.

Pregnancy and breast-feeding: Not enough is known about the use of MCTs during pregnancy and breast-feeding. Stay on the safe side and avoid use.

Diabetes: MCTs can cause certain chemicals called ketones to build up in the body. This can be a problem for people with diabetes. Avoid using MCTs if you have diabetes.

Liver problems: Because MCTs are processed primarily by the liver, they can cause serous problems in people with liver disease. Do not use MCTs if you have cirrhosis or other liver problems.