BCAAs (Branched Chain Amino
What Is BCAAs?
The branched chain amino acids (BCAAs) are leucine,
isoleucine, and valine. These essential amino acids
provide nutritional support for athletes and individuals
seeking optimal lean muscle mass. Branched chain amino
acids are unique in that they are not metabolized by
Uses For BCAAs
Promotes Healthy Muscle Mass:
BCAAs may play a role
in athletic support by promoting muscle nitrogen,
enhancing alanine and glutamine production, decreasing
lactate production and boosting energy while attenuating
protein breakdown These actions help to sustain muscle
work capacity and recovery.
Studies have reported that
post-exercise protein intake helps to enhance the repair of
muscle protein. Additionally, some research has
suggested that BCAAs may moderate the progression of
central nervous system fatigue during exercise,
supporting mental performance.*
Source for BCAAs
Isoleucine and valine are produced from corn dextrose
fermentation. Leucine is originally extracted from protein
and is extensively processed and purified.
Potential Side Effects Or Precautions - BCAA
If pregnant or lactating, consult your physician before
taking this product. Until more research is conducted,
individuals with ALS, a history of depression, or kidney
or liver disease should consult a doctor before
supplementing with BCAAs.
Potential Drug Interactions - BCAA
At this time, there are no known adverse reactions when
taken in conjunction with medications.
Ingredients and Dosage
each BCAA vegetable capsule contains
branched chain amino acids (free-form) - 600 mg.
l-leucine - 300 mg.
l-isoleucine - 150 mg.
l-valine - 150 mg.
2–4 capsules per day, in divided doses, between meals.
each supplied scoop of BCAA powder contains
branched chain amino acids (free-form) - 3,000 mg.
l-leucine - 1,500 mg.
isoleucine - 750 mg.
l-valine - 750 mg.
1/2–1 scoop per day, mixed with 10 oz. of water or juice.
1. MacLean DA, Graham TE, Saltin B. Stimulation of muscle ammonia production
during exercise following branched-chain amino acid supplementation
in humans. J Physiol (Lond)1996 Jun 15;493 (Pt 3):909-922.
2. MacLean DA, Graham TE, Saltin B. Branched-chain amino acids augment
ammonia metabolism while attenuating protein breakdown during exercise.
Am J Physiol 1994 Dec;267(6 Pt 1):E1010-E1022.
3. Davis JM, Alderson NL, Welsh RS. Serotonin and central nervous system
fatigue: nutritional considerations. Am J clin Nutr2000;72 (suppl):573S-8S.
4. Newsholme EA, Blomstrand E, Ekblom B. Physical and mental fatigue:
metabolic mechanisms and importance of plasma amino acids. Br Med Bull
5. Okita M, Watanabe A, Nagashima H. Treatment of liver cirrhosis with
branched chain amino acid-supplemented diet. Gastroenterol Jpn
6. Blomstrand E, Hassmen P, Ekblom B, Newsholme EA. Administration of
branched-chain amino acids during sustained exercise—effects on performance
and on plasma concentration of some amino acids. Eur J Appl
7. Blomstrand E, Saltin B. BCAA intake affects protein metabolism in muscle
after but not during exercise in humans. Am J Physiol Endocrinol Metab
8. Healthnotes Clinical Essentials. Copyright 2004. Healthnotes, Inc.
*This is a statement of nutritional support. This statement has not been
evaluated by the Food & Drug Administration. This product is not intended to
diagnose, treat, cure or prevent any disease.
This information is for educational purposes only. Consult your physician for
any health problems.
Source: Product Information Sheet from Pure Encapsulations
Manufacturers continually change product
specifications. While we try our best to keep product descriptions up to date,
they do not necessarily reflect the latest information available from the
manufacturer. We are not responsible for incorrect or outdated product
descriptions and/or images.
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