![]() For example, those with heart issues have been found to have increased concentrations of BCAAs. Research has shown that the metabolism of amino acids is potentially involved in the development of heart disease. In addition to the effects on mood, the excess consumption of BCAA supplements may be linked to an increased susceptibility to cardiovascular disease. ![]() Within the study, due to lower serotonin levels and excess BCAAs, the researchers noted that the mice that consumed twice the standard dosage of BCAA overate and became obese, shortening their lifespan. In addition to serotonin’s role in mood enhancement, it also plays a role in the regulation of appetite. In instances where there is an increase in BCAA blood levels, BCAA takes tryptophan’s position within the brain, which results in reduced synthesis of serotonin, decreasing mood. Tryptophan is considered to be one of the only precursors for serotonin, a hormone that improves mood and aids sleep amongst other roles. When both amino acids access the brain, they then cause different effects. This resulted in a BCAA competing with tryptophan for brain transportation. The researchers found that overall the consumption of BCAA supplements led to an increase of blood branched-chain amino acid levels. ![]() The mice were separated into four main conditions: those who were to consume the standard amount of BCAAs those required to consume twice the recommended amount those to consume half the standard amount and those to consume 20% of the recommended amount over their lifetime. The researchers used a mouse model to investigate the effects of consuming BCAAs as well as other essential amino acids. Health Dangers of BCAA Protein Supplementsĭespite their proposed benefits on muscle growth, research has suggested that BCAA protein supplements may cause adverse health consequences if taken in excess. This need for continued protein intake has increased the popularity of BCAA supplements.įor example, the inclusion of BCAA supplements into the diets of bodybuilders, athletes, and gym-goers has increased due to their proposed muscle-building benefits and ability to enhance performance. Research has found that as the production of protein is continuous, there is a need to replace lost protein. Typically, BCAAs are found in foods rich in proteins such as eggs, fish, red meat, dairy and chicken as well as soy proteins, nuts, and lentils. Leucine plays an additional role as an intercellular signaling regulator for the mechanisms of protein production. Generally, all three BCAAs act as a substrate to produce protein and energy. Of the nine essential amino acids, leucine, valine, and isoleucine are referred to as branched-chain amino acids. There are nine types of essential amino acids: phenylalanine, histidine, threonine, isoleucine, leucine, tryptophan, lysine, valine, and methionine. Non-essential amino acids are produced by the body. Therefore, they must be consumed as part of a balanced diet. However, some amino acids are considered to be essential whereby they cannot be synthesized in large enough quantities by the body. The body can code for 20 different types of amino acids. What are BCAAs?įood-derived proteins are broken down during digestion releasing amino acids which are then used by the body to create proteins required by bodily organs, tissues, and cells. However, research suggests that excessive consumption supplements may pose health risks. Mary Cooke, Ph.D.īranched-chain amino acid (BCAA) supplements are often used by athletics and fitness fanatics to increase muscle mass and enhance performance.
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