L-threonine
L-threonine carries a source-backed screening score of 3/5 and appears in 68 indexed US food products.
Source-backed answer
L-threonine appears in 68 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.
- 68
- catalogued products
- #4,047
- usage rank of 247,206
- 36
- named brands represented
- 39%
- 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.
High-volume listing for L-threonine - usage rank #4,047
- Usage rank
- #4,047
- of 247,206 ingredients that appear in at least one catalogued product, tied with 49 others that also appear in exactly 68 products, listed in more products than 98.4% of them.
- Typical depth in an ingredient list
- 39%
- Mean relative depth 39% across 68 parsed labels, slot 13.3 on average. L-threonine tends to sit in the upper half of the list. Depth is location on the label, not a measured dose.
Derived by this site from the ingredient lists of every catalogued product (Open Food Facts), recomputed on each data refresh. 247,206 ingredients have at least one appearance and are ranked here. Usage and list position describe prevalence, not safety.
How to use this page
Separate this ingredient from its product neighborhood
This is a mixed product neighborhood: 29 of 68 records have some flagged component, while the rest do not. Compare ACTIVE Essential Amino Acid Blend; Acuts Amino-charged Energy; Advanced Amino Formula to see how surrounding formulations change; do not assign their 70–100 score range to L-threonine itself. The ingredient most often sits in the upper half of the list, and Dietary supplements supplies the most useful like-for-like starting point for a label review.
29 of 68 linked records have some flagged component
All 68 NOVA-classified records cluster most heavily in Group 4, while the first-category labels split across several shelves. That makes the 70–100 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-threonine
Across the 68 products on this site that list L-threonine, 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 14.7x more often with L-threonine than in the catalogue at large.
| Additive | Shared products | Share of L-threonine products | Share of all products |
|---|---|---|---|
| Sucralose | 27 | 39.7% | 2.7% |
| Acesulfame Potassium | 7 | 10.3% | 1.8% |
| Monk fruit extract | 5 | 7.4% | 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-threonine
Products Containing L-threonine
16 busy labels from the 68 indexed products that list L-threonine:
Peer ingredients with comparable catalog mass (near “100% Whole Grain Oat Flour”)
High-volume peers for L-threonine: 68 products, mean screening score 92.2/100. Nearest count peers include “100% Whole Grain Oat Flour”, “2% Or Less Of Modified Cornstarch”, “Anchovy Puree”. 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
Score-axis peers only, mean screening score among ingredients with ≥50 scored products, not a second count list.
What to do with this L-threonine record
Use the 68-product footprint and source labels as a starting point, then inspect the records most relevant to your question.
- Open the product sample for L-threonine and read how the term sits on real packages. See listed products
- Move to a second ingredient page and compare registry fields plus catalog mass side by side. Browse ingredient records
- Check the methodology for how FDA SAFFA, CSPI, and Open Food Facts rows are joined on this site. Open methodology
This page describes published source classifications and product-label coverage. It is not dietary, allergy, or medical advice.
Questions readers ask about L-threonine
Does L-threonine 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-threonine 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-threonine? ▼
L-threonine ranks in the top decile by product count (#4,047 of 247,206), appearing in 68 indexed products led by Dietary supplements. The sample list below is a slice of that footprint, not the full universe.
What does L-threonine do in food? ▼
L-threonine is recorded as a flavor enhancer, flavoring agent or adjuvant, nutrient supplement in source technical-effect fields.
Regulatory status: FDA SAFFA (L-threonine). 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.