Description
"Isoleucine" is an essential branched-chain amino acid (BCAA) present in protein-rich foods like meat, eggs, and soy. By regulating nitrogen balance, it helps support muscle metabolism and endurance. It also plays a role in hemoglobin synthesis, ensuring oxygen delivery during physical activity. Isoleucine participates in enzymatic processes that regulate energy metabolism and tissue regeneration. As a fundamental amino acid for muscular and metabolic stability, it remains vital for recovery and sustained performance.
Functions in the Body
Category
Deficiency Symptoms
A deficiency in isoleucine can cause dizziness, depression, confusion, irritability, muscle loss, and fatigue due to its role in muscle repair and energy production.
Isoleucine
Warnings
Isoleucine can interact with medications like levodopa and diabetes treatments, potentially affecting blood sugar levels. People with amyotrophic lateral sclerosis (ALS), long-term alcoholism, or branch-chain ketoaciduria should avoid taking isoleucine supplements without medical advice.
Food Sources
Isoleucine can be found in nutritional yeast, meat, fish, poultry, eggs, cheese, lentils, nuts, seeds, dairy, beans, and legumes.
Time Frame
Isoleucine can be taken anytime and is commonly consumed before or after exercise to support muscle recovery.
Depleted By
An isoleucine-deficient diet and alcohol abuse can lead to lowered levels of this essential amino acid in the body.