L-Glutamin Ultra Pure 400g

L-Glutamin Ultra Pure 400g

  • Ultra-pure Japanese quality
  • Widely used for recovery and muscle growth
  • Quickly soluble thanks to a very fine structure
Quality tested annually by independent laboratory.
View the laboratory analysis (.pdf)
Nutrition for intestinal and immune cells


400 grams of L-glutamine (very fine, crystalline powder).


One scoop contains 1.5 grams of L-glutamine. It can be mixed with water, fruit juice or a (rapidly digestable) whey shake.

The health of our customers is the top priority of Power Supplements. There is an ongoing debate among scientists about the safety of glutamine. It is possible that the intake of glutamine is unsafe when there are other amino acids present in the intestines and blood. In order to use glutamine safely we recommend the following:

  • Do not immediately use glutamine with breakfast but rather wait 1 to 2 hours.
  • Use glutamine during the next meal(s) and do so within two hours after that meal(s).
  • Do not take more than 1 scoop of glutamine (1.5 grams) per hour, and no more than 10 grams per day.
  • During and/or after exercise, up to 5 grams of glutamine may be used when it is in combination with rapidly digestible whey protein isolate, whey protein hydrolysate (peptides) and/or BCAA amino acids.

Another method of use does not necessarily have to be unsafe, but safety should always be kept in mind.


- L-glutamine powder

Fascinating supplement

Glutamine is a fascinating amino acid, and a very popular food supplement. Many athletes believe that glutamine accelerates the recovery after physical exertion and that it stimulates the muscle growth.

90% of the glutamine is produced by muscle tissue. After intensive power training the glutamine level in the bloodstream can be significantly lower in the days after training. During research after the intense training of one leg and one arm a 25% lower glutamine level was detected three days after training.

Glutamine fulfills among others the following functions in the human body:

  • Protein Synthesis; it is one of the 20 proteinogenic amino acids 
  • Regulates the acid-base balance in the kidneys 
  • Cellular energy source, in particularly for the intestinal cells and immune cells 
  • Nitrogen donor for constructive processes 
  • Carbon donor for the citric acid cycle 
  • Non-toxic transportation aid through the bloodstream of ammonia (degradation product of protein metabolism)

Japanese quality

This ultra-pure glutamine powder is made by a leading Japanese producer. The glutamine is produced by fermenting the vegetarian raw materials.

Quality tested annually by independent laboratory.
View the laboratory analysis (.pdf)

See also
BCAA Ultra Pure 200 caps
BCAA Ultra Pure 200 caps