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The Science Behind a Lean, Real Food Source Weight GainerLean Gainz by Betancourt Nutrition is a product that fully lives up to its name. Balancing the amount of proteins, fats, and carbohydrates that are essential for proper nutrition and muscular development that leads to an increase in lean body mass to ensure maximal recovery proceeding a workout. Proteins are obviously very important in stimulating muscle growth, but why? Proteins are made up of amino acids1 which are the main structural components of muscle and many other body tissues; amino acids are also precursors to many essential enzymes and hormones that are produced naturally by the body. By having the proper amount of protein content in your diet, this saves the body energy by not having to fully produce the needed amino acids. However, when overall calorie intake is low the body will break down proteins to use as a source of energy, this is where low glycemic index complex carbohydrates are useful. Carbohydrates will provide the body with needed energy so protein breakdown will not occur and the protein consumed can be put to more beneficial uses such as to rebuild your muscles faster2. The types of protein hold a high importance as well. Research shows3 that whey protein and beef ISO have different amino acid absorption times with whey protein absorbing rather quickly and beef ISO taking a few hours. This multi-timing amino acid absorption is key in activating muscle synthesis and allows for maximal recovery after a workout. The low glycemic index4 carbohydrates included in Lean Gainz just means that the carbohydrates will not raise your blood glucose levels as much as high glycemic index carbohydrates. Multiple studies have shown a correlation between low glycemic index carbohydrates with weight control and improving overall serum lipid content, keeping the bad cholesterol low and the good cholesterol high. ModCarbTM is a unique blend of complex carbohydrates found in Lean Gainz that will regulate glucose absorption from the blood thereby extending the energy supply needed for the best training sessions. This glucose uptake regulation will also regulate levels of insulin which is needed for leucine to better stimulate muscle protein synthesis. Regulated insulin levels along with the combination of fast and slow digesting carbohydrates aids in stopping protein breakdown, as mentioned before, so that the protein consumed can be used directly for muscle repair and growth. The final key ingredient in Lean Gainz is MctSMARTTM which supplies medium chain triacylglycerides5 (MCT) that are a very important source of healthy fats needed in a diet. Many people overlook the component of fat in muscle recovery and growth. If your body needs to function as a well-oiled machine, think of the fat as the oil, essential. Fats are used to make and regulate enzymes and hormones just as proteins do in the body. MCT were found to drastically increase muscular function at elevated body temperature throughout intense exercise, and promote mitochondrial biogenesis and metabolism. So, if you are looking for a recovery supplement that will give you exactly what the product is named, search no further than Lean Gainz. References Hoffman, Jay R., Falvo, Michael J. 2004. Protein – Which is Best. J Sports Sci. Med. vol 3, no. 3, ser. 118-130. Hulmi, Juha J. 2005. The effects of whey protein with or without carbohydrates on resistance training adaptations. J Int Soc Sports Nutr. Vol 12, ser. 48. Detzel, Christopher, et al. Effect of Protein Source on Body Composition. Essentia Metabolic Proteins, Effect of Protein Source on Body Composition. Esfahani, A. 2009. The glycemic index: physiological significance. J Am Coll Nutr. vol 28, Suppl: 439S-445S. Wang, Y. 2018. Medium Chain Triglycerides enhances exercise endurance through the increased mitochondrial biogenesis and metabolism. PLoS One. vol 13, no. 2, ser. E0191182. Volek, JS. 2013. Whey protein supplementation during resistance training arguments lean body mass. J Am Coll Nutr. vol 32, no. 2, ser. 122-35. Sharp, M., Shields, K., Lowery, R., Lane, J., Partl, J., Holmer, C., Minevich, J., De Souza, D., Wilson, J. 2015. The effects of beef protein isolate and whey protein isolate supplementation on lean mass and strength in resistance trained individuals – a double placebo controlled study. J Int Soc Sports Nutr. vol 12, Suppl: 1, ser. P11. Figueiredo, V., C., Cameron-Smith, D. 2013. Is carbohydrate needed to further stimulate muscle protein synthesis/hypertrophy following resistance training. J Int Soc Sports Nutr. vol 10, no. 42.