Does medium chain triglyceride play an ergogenic role in endurance exercise performance?

Abstract

Because of the medium chain triglycerides (MCT) specific physical and chemical properties, they have been used over the last 40 years in enteral and parenteral nutrition. Results from clinical practice lead some researchers in the early 80's to use them for ergogenics purposes. The hypothesis was based on the relationship between the oxidation rates of carbohydrate and fat. The increase in fat oxidation would promote glycogen sparing effect, and therefore, delay the time to exhaustion. The aim of the present paper is to review the effects of MCT supplementation upon endurance exercise performance. Most of the studies failed to prove the ergogenic effect of MCT. A few studies that showed the ergogenic effect of MCT administration used alternative experimental designs, such as high MCT dose (above from the previous established limit) or infusion. The chronic use of MCT by athletes is new and few studies have been done in this matter. These few studies showed controversial results. There is a strong tendency in the literature that MCT is not a viable strategy to increase performance during endurance exercise. The aim of this study is to discuss the effects of MCT use on endurance exercise

The Effect of Acute Consumption of Hydrolyzed Oils on Swimming Capacity Endurance of Mice (Mus Musculus)

“…Lingual lipase and gastric lipase do not hydrolyze LCT in mouth and stomach, therefore LCT enter small intestine and emulsified by bile salts and hydrolyzed by pancreatic lipase to produce free fatty acid and 2-monoglycride which then converted back (resynthesize) into triglycerides and bind to proteins and cholesterol to form chylomicron, then enter the blood circulation through the lymph system and hence may increase blood triglyceride level, and LCT oil is slowly metabolized in to energy. Due to this different metabolism pathway, there will be the different physiological effect of MCT including stamina compared with LCT [2,6,7]. The effect on the stamina of coconut oil and PO without hydrolysis has been investigated and reported that coconut oil was more effective to increase swimming capacity endurance of rats compared to PO [8,9].…”