Applied Nutrition BCAA 6K

BCAA 6K is a product from UK based company Applied Nutrition. This product states that it can help enhance post exercise muscle recovery and promote protein synthesis in lean muscle. This review will aim to examine the ingredients in this product to see if it can support the claims made.


Leucine / Isoleucine/ Valine

Leucine, Isoleucine and Valine are all Branched chain amino acids (BCAA’s). They are essential for protein synthesis which is stimulated after exhaustive exercise (1) as well as the critical metabolic process in muscle (2, 3). The metabolic roles of Leucine include energy production and the modulator of muscle protein synthesis via the insulin signalling pathway. There is a reason to suggest that it helps maintenance of muscle mass during weight loss (4). Leucine has also been shown to help in the direct maintenance of glucose homeostasis by improving the redistribution of glucose via the glucose – alanine cycle (5).

Dicalcium Phosphate

Dicalcium phosphate is formed from calcium and phosphorus properties. It can help to aid the growth and maintenance of bones (6). Other important benefits of calcium include helping blood clotting (7), heart contractions (8), lungs (9) and muscles to function properly (10), this is due to calcium binding with phosphate to create calcium phosphate (11).

Stearic Acid / Magnesium Stearate

Stearic acid is also known as magnesium stearate. Magnesium stearate does not induce any nutritional benefits. The main reason for this substance being in the supplement is that it is a lubricant for the machinery that manufactures the product.

Microcrystalline Cellulose

Micro Crystalline Cellulose is a non-active ingredient which is made up of refined wood pulp. This substance does not degrade during digestion and is preferable in tablets due to it being able to form hard but dissolve quickly.

Croscarmellose Sodium

Croscarmellose Sodium is otherwise known as salt. It is theorised that sodium chloride can help prevent cramps as the key mechanism in muscle contraction is the flooding of the action potential in the muscle membrane, and so if there is a sodium deficiency it may cause the muscle to cramp (12).

Silicon Dioxide

Silicon Dioxide doesn’t add any nutritional benefits to this supplement. The main reason for silicon dioxide in this supplement is that it aids in the even distribution of the active ingredients in this supplement.

Sodium Carboxymethylcellulose

Carboxymethyl cellulose is water-soluble and derived from cellulose. Carboxymethyl cellulose is used as a viscosity modifier or thickener, and to stabilize emulsions in various supplements and other products. It is known for its excellent water retaining capacity.


dextrin is a polysaccharide which is a complex carbohydrate. This ingredient is water soluble and unlike other carbohydrates, is easily digestible (13) and can give a quick release of energy without any spikes of glycaemia (14).


Dextrose monohydrate is a fast absorbing carbohydrate that gives a quick release of energy. It is usually found in supplements as its properties mix very well with other substances.

Soy Lecithin

SOYA Lecithin is an emulsifier which means that it helps aid the ingredients to disperse in water rather than separate into oily droplets and water.

Sodium Citrate

Calcium citrate is used as a preservative, a food additive that enhances the flavour and regulates acidity.


This product contains ingredients that can help with the building and maintenance of muscle as well as providing energy due to the carbohydrates that are included within this supplement. This product can be consumed throughout the day. This product has no banned substances when referring to the WADA prohibited list when observing the label / ingredients posted on the website. 

*NOTE – This product has not been tested in a laboratory and may contain other substances that may not appear on the label


1 – Coker, R. H., Miller, S., Schutzler, S., Deutz, N., & Wolfe, R. R. (2012). Whey protein and essential amino acids promote the reduction of adipose tissue and increased muscle protein synthesis during caloric restriction-induced weight loss in elderly, obese individuals. Nutr J, 11(1), 105.

2 – Hulmi, J. J., Lockwood, C. M., & Stout, J. R. (2010). Review Effect of protein/essential amino acids and resistance training on skeletal muscle hypertrophy: A case for whey protein.

3 – Pasiakos, S. M., McLellan, T. M., & Lieberman, H. R. (2015). The effects of protein supplements on muscle mass, strength, and aerobic and anaerobic power in healthy adults: a systematic review. Sports Medicine, 45(1), 111-131.

4 – Volek, J. S., Volk, B. M., Gómez, A. L., Kunces, L. J., Kupchak, B. R., Freidenreich, D. J., … & Kraemer, W. J. (2013). Whey protein supplementation during resistance training augments lean body mass. Journal of the American College of Nutrition, 32(2), 122-135.

5 – Hansen, M., Bangsbo, J., Jensen, J., Bibby, B. M., & Madsen, K. (2014). Effect of Whey Protein Hydrolysate on Performance and Recovery of Top-Class Orienteering Runners. International journal of sport nutrition and exercise metabolism.

6 – Harada, S. I., & Rodan, G. A. (2003). Control of osteoblast function and regulation of bone mass. Nature, 423(6937), 349-355.

7 – Bogdanova, A., Makhro, A., Wang, J., Lipp, P., & Kaestner, L. (2013). Calcium in Red Blood Cells—A Perilous Balance. International journal of molecular sciences, 14(5), 9848-9872.

8 – Dhalla, N. S., Pierce, G. N., Panagia, V., Singal, P. K., & Beamish, R. E. (1982). Calcium movements in relation to heart function. Basic research in cardiology, 77(2), 117-139.

9 – Hawgood, S., Benson, B. J., & Hamilton Jr, R. L. (1985). Effects of a surfactant-associated protein and calcium ions on the structure and surface activity of lung surfactant lipids. Biochemistry, 24(1), 184-190.

10 – Berchtold, M. W., Brinkmeier, H., & Müntener, M. (2000). Calcium ion in skeletal muscle: its crucial role for muscle function, plasticity, and disease.Physiological reviews, 80(3), 1215-1265. 

11 – Shanahan, C. M., Crouthamel, M. H., Kapustin, A., & Giachelli, C. M. (2011). Arterial calcification in chronic kidney disease: key roles for calcium and phosphate. Circulation research, 109(6), 697-711.

12 – McCance, R. A. (1936). Experimental sodium chloride deficiency in man.Proceedings of the Royal Society of London. Series B, Biological Sciences,119(814), 245-268.


13 – Haralampu, S. G. (2000). Resistant starch—a review of the physical properties and biological impact of RS< sub> 3</sub>. Carbohydrate polymers, 41(3), 285-292.

14 – Roberts, M., Lockwood, C., Dalbo, V. J., Tucker, P., Frye, A., Polk, R., … & Kerksick, C. (2009). Ingestion of a high molecular weight modified waxy maize starch alters metabolic responses to prolonged exercise in trained cyclists. In FASEB abstract.

Use for Muscle Gain
Price £29.99