Optimal Protein Podcast with Vanessa Spina

The Great MCT Debate!

Apr 1, 2021

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Hi friends! This episode is all about MCTs- the MCT Challenge, the studies showing effectiveness for superior fat loss, boosting metabolic rate (by 190 to 460 calories a day!), and my theory on why it helps the body to burn fat via the mitochondria in our cells. The studies mentioned are linked below. I hope you enjoy it!! Love ya!

"MCTs, on the other hand, are directly absorbed into the blood, and boost your metabolism, burn more calories and fat, and reduce fat storage, while curbing your appetite. That's why we think of these fats as super fuel for your cells.

In fact, studies show MCTs help you burn about 460 extra calories a day for men and about 190 extra calories for women. MCTs also beneficially impact your hormones, including appetite-controlling hormones, helping you feel full."

Greater rise in fat oxidation with medium-chain triglyceride consumption relative to long-chain triglyceride is associated with lower initial body weight and greater loss of subcutaneous adipose tissue: https://pubmed.ncbi.nlm.nih.gov/12975635/

Weight-loss diet that includes consumption of medium-chain triacylglycerol oil leads to a greater rate of weight and fat mass loss than does olive oil: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2874190/

In one study, consuming MCT oils helped reduce body fat and triglycerides more than omega 6 vegetable oils. After eight weeks, the experiment showed the MCT oil group lost more weight, body fat, and subcutaneous fat, all while experiencing a 15 percent drop in triglycerides and LDL (the bad) cholesterol.

"Comparison of the dietary thermogenesis resulting from meals containing LCTs and MCTs yielded results that further distinguished the metabolism of the fats on the basis of chain length. Hill and coworkers fed subjects liquid formula diets containing 150 percent of estimated energy requirements with 40 percent of calories as fat for 1 week in a double-blind crossover regimen (Hill et al., 1989). The thermal response to the MCTs was nearly twice that to the LCTs after 5 days of feeding (12±1.3 percent versus 6.6±1.0 percent) of ingested energy. The authors concluded that a principal component of this thermal effect of MCT-containing food was the energy expended in lipogenesis from the caloric excess of the MCTs. The lipogenesis from MCTs is an inefficient process with little elongation of the octanoate and, principally, the production of the acetate that is used in the de novo synthesis of fatty acids.

The feeding of MCTs to animals results in virtually no deposition of octanoic and decanoic acids in the carcass or adipose tissue (Jandacek et al., 1991). Rather, palmitic acid is the dominant species." https://www.ncbi.nlm.nih.gov/books/NBK209064/

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