Likely Safe High confidence

Nutricost Pure L-Leucine Powder 500 Grams: A Gluten-Free Amino Acid Supplement Guide

Nutricost ★★★★☆ 4.4 · 2,626 reviews

Pure L-Leucine is gluten-free in isolation and the product labeling reflects gluten-free status; no gluten-containing ingredients are listed. No explicit cross-contact warnings are provided in the sources, and no third-party GF certifications are documented.

🌾 Gluten-free labeled ⚠ No 3rd-party cert
$21.95
Buy on Amazon →

As an Amazon Associate, Gluto earns from qualifying purchases. Prices and availability may change.

Celiac verdict
Likely safe
Confidence
High
Type
Supplements
Size
1.1 pound (pack of 1)
Price tier
Mid
Read
5 min
✅ Why it works
  • Gluten-free labeling confirmed on the product listing (Non-GMO and Gluten Free) and gluten-free tag.
  • Single-ingredient, L-Leucine powder suitable for stacking with other supplements.
  • Serving size around 5 g per serving aligns with typical BCAA dosing.
⚠ Keep in mind
  • Taste and odor issues reported by multiple reviewers.
  • Dissolution consistency varies among users.

Gluten safety details

Labeled gluten-free
Yes
Certifications
None documented
Ingredient risks
None found
Cross-contact notes
No explicit cross-contact or facility cross-contamination warnings provided in the sources.

Pure L-Leucine is gluten-free in isolation and the product labeling reflects gluten-free status; no gluten-containing ingredients are listed. No explicit cross-contact warnings are provided in the sources, and no third-party GF certifications are documented.

No explicit cross-contact or facility cross-contamination warnings in the provided sources. No stated third-party gluten-free certification on packaging in the available data.

What to expect

A pure L-Leucine powder that is gluten-free and unflavored, typically used in a 5 g serving. Expect variability in taste and solubility between batches or brands, and use as part of a broader gluten-free supplement plan if stacking with other amino acids or nutrients.

👍 Best for
  • athletes or individuals on gluten-free diets seeking a pure L-Leucine boost for muscle protein synthesis and recovery
  • stacking with other supplements (e.g., other BCAAs) in gluten-free regimens
👎 Not ideal for
  • consumers sensitive to taste or odor who require a milder-flavored product
  • buyers who need guaranteed third-party gluten-free certification on packaging

The full guide

Product snapshot

Nutricost Pure L-Leucine Powder is a pure L-Leucine supplement sold in a 500-gram container. The product is marketed as gluten-free and non-GMO, with a single-ingredient formula. Consumer listings indicate a typical serving size around 5 grams, aligning with common BCAA dosing patterns. The listing and related data present a mid-range price point with a substantial user base.

Gluten safety and certifications

Gluten safety is supported by the product listing, which labels the product gluten-free and non-GMO. There are no explicit third-party gluten-free certifications listed in the provided sources. The documentation notes no explicit cross-contact warnings or facility cross-contamination information in the sources available. Overall, the product is considered likely safe for those with celiac disease or gluten sensitivity based on the listed ingredients and labeling.

Taste, texture, and how it’s used

Reviews consistently mention taste and odor concerns, with several reviewers describing unpleasant taste or smell and some noting a burnt taste. Dissolution/solubility experiences vary among users, with some reporting good mixability and others experiencing less favorable dissolution. Practically, it’s a unflavored powder intended to be mixed with a liquid or stacked with other supplements; taste and texture expectations may differ between individuals.

Who it’s for and practical considerations

This product is suitable for athletes or individuals on gluten-free diets seeking a pure L-Leucine boost for muscle protein synthesis and recovery, and for those who prefer stacking with other supplements in gluten-free regimens. It may not be ideal for people highly sensitive to taste or odor or for buyers who require guaranteed third-party gluten-free certification on packaging. Pricing is mid-range, and users should verify current pricing at their retailer, as shown by the listed price and approximate per-serving costs.

What shoppers say

💚 People liked

⚠ People flagged

Unpleasant taste and smell reported by several reviewers.
Inconsistent dissolution experience for some users.

Key takeaways

  • This is a gluten-free, single-ingredient L-Leucine powder sold in a 500 g container.
  • Expect typical 5 g servings; taste and solubility may vary by batch and user.
  • No explicit third-party gluten-free certification is documented in the sources provided.
  • Priced mid-range; good option for gluten-free stacking with other supplements.
How we assess this: Gluto summarizes manufacturer labeling, listing data, and community signals — it is not a medical guarantee. Always read the current label and confirm with the manufacturer before purchase, especially for celiac disease.

Evidence gaps for this product:
  • No explicit third-party gluten-free certification listed (e.g., GFCO, NSF) in provided sources.
  • No detailed cross-contact/WF facility information available.
Likely Safe Nutricost Pure L-Leucine Powder 500 Grams: A Gluten-Free Amino Acid Supplement Guide $21.95
Buy on Amazon →