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Glutamine is a conditionally essential proteinogenic (protein building) amino acid. Under normal conditions, it is considered nonessential because it can be synthesized (made) from other substances (synthesized from the amino acid glutamate by the enzyme gluatamine synthetase). However, during intense training, illness, or injury, it can become conditionally essential (meaning you need to get it from your diet or supplements). This is why athletes often supplement with glutamine to help maintain muscle health. You'll find glutamine in many of the supplements in our Post-Workout and Recovery categories. 

It is the most available naturally occurring nonessential amino acid in the human body.

Glutamine’s Importance:

  • Protein building (ex: helps build muscles)
  • Is a source of cellular energy
  • Helps regulate PH balance (acid-base) in the body
  • Supports the body's production and regulation of human-growth hormone
  • Reduces muscle fatigue
  • Support the immune system

Food sources include: meats (chicken, beef, fish), diary, wheat, eggs, and some vegetables like beets and spinach.

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