Rule One Glutamine, Unflavored - 398 grams
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Rule One Glutamine supports post workout recovery by delivering pure micronised L-glutamine, helping safeguard muscle and bolstering immune function during demanding training. Untasted and fast to blend into shakes, it fits daily routines quickly and easily without altering flavour. Coming from a brand famed for clear, honest formulations, Rule One Glutamine brings quality you can trust.
Available Sizes & Variants:
398 grams glutamine powder - handy daily serving.
Benefits & Features:
- Supports post workout recovery.
- Unflavoured, micronised L-glutamine is the star ingredient, supporting immune cell function and assisting muscle repair after intense workouts, while blending effortlessly with protein powders and pre workout drinks.
- Intended for daily use after training and mixes well with protein powder.
- Transparent ingredients with no fillers, just pure glutamine powder.
- Glutamine helps rebuild and repair muscle tissue after intense exercise.
Rule One Glutamine stays true to the brand's clean, transparent approach. The unflavoured powder uses 100% micronised L-glutamine, enabling quick mixing and consistent quality. Fans appreciate its simple, single-ingredient profile, easy to use and simple to love, blending effortlessly into protein powder or pre workout drinks. The brand's commitment to quality is reflected in straightforward labeling and a focus on real results.
United Kingdom & Rest of the World Shipping Details:
Same day dispatch for orders placed by 2pm (Orders after 2pm dispatched next working day).
Free shipping on orders over £50 to the UK.
Returns: Our products are meant to make you feel healthy and at your best. If you need to return your item, you can do so free of charge within 14 days in the same original and unopened packaging. Subject to T&C's.
Welzo is a UK-based health platform. Orders ship from the UK.
Please consult the product packaging for accurate instructions on how to use the product.
| Amount Per 100g | Amount Per Serving | %RI* | |
|---|---|---|---|
| Calories | 1578.8679 kJ / 377.3585 kcal | 83.68 kJ / 20 kcal | |
| L-Glutamine | 94.3396 g | 5 g |
*Percent Daily Values are based on a 2,000 calorie diet. Your daily values may be higher or lower depending on your calorie needs.
Active Ingredient And How It Works
L-glutamine is basically the plentiful free amino acid in muscle and genuinely helps with tissue repair and immune cell function during and after tough activity. This product gives finely milled L-glutamine in a pure, neutral-taste form made for easy mixing into drinks and protein shakes.
What you get is micronized L-glutamine in a pure, unflavoured form designed for easy mixing into beverages and shakes.
What Does L-glutamine Do?
L-glutamine helps support post-exercise recovery and boosts immune system function, with evidence saying it may help protect lean muscle during tough training. This lines up with guidelines emphasising normal immune and metabolic processes during stress.
Dr. Castell at the University of Calgary found that glutamine supplementation might cut muscle soreness and aid recovery after intensive exercise.
*This product is not intended to diagnose, treat, cure, or prevent any disease.
Rule One Proteins stands out for production excellence and a clear commitment to purity. Rule One Glutamine is a prime example, offering 100% micronized L-glutamine with no added fillers or flavours, demonstrating a transparent, single-ingredient formulation that aligns with our strict quality expectations. This focus on ingredient integrity supports reliable mixing and consistent potency, which is why Rule One emerged as our trusted partner for this supplement.
This brand’s reputation for precise manufacturing and their dedication to product clarity were key in our decision. Our evaluation process, including input from our expert team of doctors, nurses, and nutritionists, emphasised the brand’s alignment with the standards we require for third-party testing and certifications, as reflected in the certifications we require.
For this glutamine product, Rule One’s straightforward, science-driven approach fits perfectly with our goals for post-exercise recovery and immune-support potential, making it a natural fit for Welzo’s product family and our customers.
Part of the Welzo System™
Test, supplement, enhance, and move, all in one place.
Frequently Asked Questions
Everything you need to know about this product.



