L-glutamine
L-glutamine carries a source-backed screening score of 3/5 and appears in 257 indexed US food products.
Source-backed answer
L-glutamine appears in 257 catalogued products. CSPI has no rating attached in this snapshot. Its FDA SAFFA status is “Approved.” Those source labels describe the ingredient; they do not establish whether a particular product, dose, allergy, or diet is safe.
- 257
- catalogued products
- #1,662
- usage rank of 247,206
- 78
- named brands represented
- 30%
- average depth down ingredient lists
Catalog prevalence comes from Open Food Facts ingredient lists. FDA SAFFA and CSPI Chemical Cuisine labels are shown only when the source record contains them.
L-glutamine sits in the busiest tenth of the catalog (#1,662 / 247,206)
- Usage rank
- #1,662
- of 247,206 ingredients that appear in at least one catalogued product, tied with 4 others that also appear in exactly 257 products, listed in more products than 99.3% of them.
- Typical depth in an ingredient list
- 30%
- Averaged label depth puts L-glutamine in the upper half of the list (30% of list length, mean slot 10.7). Compound ingredients and OCR noise mean this cannot stand in for quantity.
Ranks use Open Food Facts ingredient rows on this site’s refresh cycle. 247,206 ingredients with ≥1 product appearance enter the ranking. Prevalence and list depth are catalog facts, not toxicology.
What this page can and cannot answer
Separate this ingredient from its product neighborhood
This is a mixed product neighborhood: 108 of 257 records have some flagged component, while the rest do not. Compare 100% Mass Gainer Chocolate Fudge Brownie; 100% Pure Whey With Grass Fed Whey Isolates Vanilla Cream Slice Flavour; 100% Whey Protein to see how surrounding formulations change; do not assign their 45–100 score range to L-glutamine itself. The ingredient most often sits in the upper half of the list, and Snacks supplies the most useful like-for-like starting point for a label review.
108 of 257 linked records have some flagged component
All 248 NOVA-classified records cluster most heavily in Group 4, while the first-category labels split across several shelves. That makes the 45–100 score spread more informative than the average alone: investigate the low end, identify the actual flagged row, and compare it with a similar unflagged formulation before drawing a conclusion.
Next check: pair one flagged product with a similar unflagged product from the same shelf category.
What else is usually in the same product as L-glutamine
Across the 257 products on this site that list L-glutamine, these flagged additives appear alongside it most often. The comparison column is how often each one appears across every product with a parsed ingredient list, so the two figures are measured over the same set. Sucralose shows up about 14x more often with L-glutamine than in the catalogue at large.
| Additive | Shared products | Share of L-glutamine products | Share of all products |
|---|---|---|---|
| Sucralose | 97 | 37.7% | 2.7% |
| Acesulfame Potassium | 41 | 16% | 1.8% |
| Carrageenan | 32 | 12.5% | 4.5% |
| Caramel Coloring | 17 | 6.6% | 5.7% |
| Monk fruit extract | 14 | 5.4% | 0.5% |
Co-occurrence describes what manufacturers formulate together. It is not a claim that these additives interact, and it carries no regulatory meaning. Counted over products with parsed ingredient lists; Open Food Facts, 2026-09-01.
Function
FLAVOR ENHANCER, FLAVORING AGENT OR ADJUVANT, NUTRIENT SUPPLEMENT
How do the sampled products compare?
Each point is one of the 16 sampled products listed below: its overall safety score against how many separately flagged ingredients its label carries. Bubble size is the number of ingredient rows the label actually resolved to.
Safety score vs. flagged-ingredient count for products containing L-glutamine
Products Containing L-glutamine
High-volume slice (16 of 257) for products naming L-glutamine:
High-volume peers for L-glutamine beside “Organic Cranberry Juice From Concentrate”
High-volume peers for L-glutamine: 257 products, mean screening score 90.4/100. Nearest count peers include “Organic Cranberry Juice From Concentrate”, “Greek Yogurt”, “Green Bell Pepper Powder”. Axes below stay distinct so count-neighbors do not duplicate score-neighbors.
Similar product count
Nearest other ingredients by Open Food Facts product count (floored at ≥50).
Similar mean product score
Nearest other ingredients by mean product screening score (floored at ≥50 scored products), distinct from the count row.
What to do with this L-glutamine record
Use the 257-product footprint and source labels as a starting point, then inspect the records most relevant to your question.
- Open the product sample for L-glutamine and read how the term sits on real packages. Open product sample
- Place L-glutamine next to “Greek Yogurt” (or another peer) using the same FDA/CSPI and prevalence fields. Open a peer record
- See the join rules behind screening scores before reading them as dietary advice. Open methodology
This page describes published source classifications and product-label coverage. It is not dietary, allergy, or medical advice.
Frequently Asked Questions
Does L-glutamine carry its own safety label in this catalog? ▼
This is a mixed neighborhood: some linked products carry a separate flag while others do not. L-glutamine itself carries and FDA SAFFA status "Approved" where the source record supplies them. Compare like-for-like products before treating the average screening score as an ingredient verdict.
Which product shelves show up most often with L-glutamine? ▼
L-glutamine ranks in the top decile by product count (#1,662 of 247,206), appearing in 257 indexed products led by Snacks. The sample list below is a slice of that footprint, not the full universe.
What does L-glutamine do in food? ▼
L-glutamine is recorded as a flavor enhancer, flavoring agent or adjuvant, nutrient supplement in source technical-effect fields.
Regulatory status: FDA SAFFA (L-glutamine). Safety ratings: CSPI Chemical Cuisine; product presence: Open Food Facts via PlainFoodSafe (September 2026). Figures are computed from those sources, no editor-typed counts. Methodology · State regulations.