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L-Glutamine - 400g (Unflavoured)

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  • 5g of high quality L-Glutamine per serving.
  • Unflavoured – ideal for mixing with Advanced Isolate + or REGO Rapid Recovery.
  • Easily mixed in water, juice or a protein shake
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UK Delivery Information*

  • Free Standard Delivery over £30
  • Standard UK Delivery (3-5 Working Days) - £3.99
  • UK Next Day Delivery (Restrictions Apply) - £4.99
  • SiS Premier - Unlimited Next Day Delivery for 1 Year + Free Gift & more - £9.99
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Product Information

L-Glutamine is the latest addition to the range. L-Glutamine may enhance recovery from exercise, as well as promoting immune and gut function. Add to water, juice or a shake and consume pre or post workout

The product contains 100% pure L-Glutamine which is ideal for any athlete engaging in a long-term training program.

Each serving contains 5g of L-Glutamine.

Key Features

  • 5g of high quality L-Glutamine per serving
  • Unflavoured variety
  • Easily mixed in water, juice or a protein shake

Product Uses
Nutritional Info

Typical ValuesPer Serving (5g)Per 100g
of which saturates0g0g
of which sugars0g0g


L-Glutamine (100%)

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What is L-Glutamine

  • L-Glutamine is the most abundant non-essential amino acid found in muscle tissue. During periods of prolonged and intense exercise, both blood and muscle stores of L-Glutamine can become depleted and remain reduced in the post-exercise recovery period.

What does L-Glutamine do?

  • L-Glutamine supplementation can help replenish the diminished L-Glutamine stores post-exercise. L-Glutamine supplementation before and after exercise may therefore improve muscle (promote muscle recovery), immune and gut function.

Does it have any side-effects?

  • There are no reported side effects of L-Glutamine supplementation but do not exceed the recommended dose. Consume no more than 3 servings per day.

Do I need to take it every day?

  • L-Glutamine is found naturally in protein rich foods. It can be taken on both off-days and training days and may be particularly beneficial consumed before and after training sessions

I’m an endurance athlete, will L-Glutamine help me?

  • Prolonged and intense exercise can deplete muscle and plasma L-Glutamine stores. L-Glutamine supplementation can help recover L-Glutamine stores and may therefore increase recovery of muscle function, promote immunity and improve gut function.

How many scoops per serving

  • Use one, 5g scoop per serving and consume no more than 3 servings per day. Ideally, consume pre and/or post work-out.

Does it mix/shake well?

  • SiS L-Glutamine is best mixed in an SiS Protein Shaker with other SiS products.

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