Formal Name: 2-amino-3-methylvaleric acid
Supplement Forms: Pills, food, liquid

Recommended Daily Allowance

  • Infants: (0 to 12 Months) 80 mg/kg of body weight
  • Children: (1 to 13 years) N/A
  • Adolescents: (14 to 18 Years) N/A
  • Adults: (19 and Older) 12 mg/kg of body weight
  • Lactating Women: N/A
  • Pregnant Women: N/A

Notes: mg stands for milligrams and kg stands for kilograms.

Additional Information

Isoleucine is an amino acid that is not formed by the body in any amount and therefore must be acquired through daily dietary intake. This amino acid yields no large scale influence on the body, but is discretely involved in combination with particular enzymes and proteins in many biological processes.

Bodily Functions Isoleucine Assists

Isoleucine is an amino acid that contributes to the production and healthy maintenance of proteins. It also has minor involvement in appropriate functioning of the thymus and pituitary glands. Once metabolized, isoleucine contributes to hemoglobin formation, blood clot formation and helps stabilize blood sugar and energy levels. It also positively contributes to muscle tissue repair in cooperation with the leucine and valine, the two other amino acids that make up the branched chain amino acids (BCAA).

Symptoms Of Deficiency:
  • Headaches
  • Chronic fatigue
  • Depression
  • Irritability
  • Dizziness
  • Other symptoms may resemble those of hypoglycemia
Foods High In Isoleucine

Quality amounts of isoleucine can be found in lean meats, fish, liver, eggs, poultry, chickpeas, lentils, cashew nuts, almonds and soy proteins.

Ailments That Isoleucine Helps Against:
  • Contributes in treating abnormal blood amino acid
  • pooling
  • May aid in treatment of chronic renal failure
  • May improve poor blood clotting ability
  • Benefitial in arthritis treatment
Side Effects And Toxicity

Patients with liver or kidney disease are encouraged to consult their doctor before supplementing with amino acids. No known toxicity report for isoleucine is available.