Safety Profile
Known Safety Concerns
- In vitro genotoxicity signals -- not confirmed in vivo at food use levels
- Skin and hypersensitivity reactions in some individuals
- Better safety profile than sodium benzoate (no benzene formation with vitamin C)
- GRAS at typical food and supplement use levels
Contraindications
- In vitro genotoxicity signals -- not confirmed in vivo at food use levels
- Skin and hypersensitivity reactions in some individuals
Interactions
Information not yet available for this ingredient profile.
Evidence and Scientific Findings
Ingredient Overview
Potassium sorbate is a widely used preservative in liquid supplements, gummies, and functional foods. Generally recognized as safe (GRAS). It is metabolized as a fatty acid by the body. Some individuals experience skin reactions or allergic responses. In vitro studies have raised genotoxicity questions but in vivo studies have not confirmed significant harm at food use levels. Better safety profile than sodium benzoate.
Biological and Chemical Classification
- Scientific Name
- Potassium (E)-hexa-2,4-dienoate
Mechanism of Action
Information not yet available for this ingredient profile.
Clinical Evidence of Effectiveness
Information not yet available for this ingredient profile.
Pharmacokinetics
Information not yet available for this ingredient profile.
Recommended Dosage
Information not yet available for this ingredient profile.
SETI — Scientific Evidence Transparency Index
Executive Summary — Ingredient Assessment
- 10 studies reviewed
- 0 high-quality studies (meta-analysis or RCT)
- Main clinical benefit observed: Excipient
- Evidence consistency: High consistency across studies (100%)
- In vitro genotoxicity signals -- not confirmed in vivo at food use levels
- Skin and hypersensitivity reactions in some individuals
- Better safety profile than sodium benzoate (no benzene formation with vitamin C)
- GRAS at typical food and supplement use levels
The available scientific evidence for Potassium Sorbate indicates notable safety signals that warrant caution. Use should be considered carefully and monitored, particularly in sensitive populations or alongside other medications.
Total SETI Score
High risk| Evidence quality | 10/40 |
| Evidence consistency | 20/20 |
| Safety signals | 0/20 |
| Study recency | 10/10 |
| Evidence transparency | 10/10 |
Evidence Summary
- 10 studies reviewed
- 0 high-quality studies (meta-analysis or systematic review)
- 0 studies identified benefits or no safety concern (GREEN)
- 10 studies reported limited or advisory safety evidence (YELLOW)
Evidence Policy
Only peer-reviewed scientific literature indexed in PubMed or comparable databases is included in this evaluation. Commercial websites, blogs, and marketing materials are excluded. All references include direct traceable links to source documents.
Last updated: 24 მარ 2026, 09:34
Evidence Distribution
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Observational / other LOW evidence YELLOWMain effects of ascorbic acid levels and organic acid type on physicochemical properties, microbial populations, texture, and biogenic amine formation in sucuk. ↗Bu0131u00e7akcu0131 G et al.. Main effects of ascorbic acid levels and organic acid type on physicochemical properties, microbial populations, texture, and biogenic amine formation in sucuk.. J Sci Food Agric. 2026. PMID:41821176.PMID 41821176 ↗Journal J Sci Food AgricYear 2026Study type Observational / otherEvidence strength LOW evidencePubMed link https://pubmed.ncbi.nlm.nih.gov/41821176/
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Observational / other LOW evidence YELLOWNatural food-derived antimicrobials against beer spoilage microorganisms. ↗Liu C et al.. Natural food-derived antimicrobials against beer spoilage microorganisms.. Appl Microbiol Biotechnol. 2026. PMID:41813865.PMID 41813865 ↗Journal Appl Microbiol BiotechnolYear 2026Study type Observational / otherEvidence strength LOW evidencePubMed link https://pubmed.ncbi.nlm.nih.gov/41813865/
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Observational / other LOW evidence YELLOWPotassium sorbate instigates sub-chronic cardiotoxicity via dysregulating TLR4/MyD88 and NF-u03baB pathway: A biochemical, radiological, histological, and computational validation. ↗Alsubki R et al.. Potassium sorbate instigates sub-chronic cardiotoxicity via dysregulating TLR4/MyD88 and NF-u03baB pathway: A biochemical, radiological, histological, and computational validation.. Tissue Cell. 2026. PMID:41806634.PMID 41806634 ↗Journal Tissue CellYear 2026Study type Observational / otherEvidence strength LOW evidencePubMed link https://pubmed.ncbi.nlm.nih.gov/41806634/
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Observational / other LOW evidence YELLOWIn Vitro Effects of Twelve Food Additives on Gut Microbiome and Its Fibre Fermentation Capacity in Adults with Crohn's Disease in Remission… ↗Alessa H et al.. In Vitro Effects of Twelve Food Additives on Gut Microbiome and Its Fibre Fermentation Capacity in Adults with Crohn's Disease in Remission and Healthy Controls.. Nutrients. 2026. PMID:41754185.PMID 41754185 ↗Journal NutrientsYear 2026Study type Observational / otherEvidence strength LOW evidencePubMed link https://pubmed.ncbi.nlm.nih.gov/41754185/
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Observational / other LOW evidence YELLOWBactericidal and anti-virulence effects of Melaleuca alternifolia essential oil against foodborne pathogens: in vitro and milk matrix assay. ↗Magna LR et al.. Bactericidal and anti-virulence effects of Melaleuca alternifolia essential oil against foodborne pathogens: in vitro and milk matrix assay.. Lett Appl Microbiol. 2026. PMID:41733458.PMID 41733458 ↗Journal Lett Appl MicrobiolYear 2026Study type Observational / otherEvidence strength LOW evidencePubMed link https://pubmed.ncbi.nlm.nih.gov/41733458/
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Observational / other LOW evidence YELLOWInvestigating the Shelf-Life Extension of Shrimp Surimi Using a Polysaccharide-Based Film from Alpinia oxyphylla. ↗Wang M et al.. Investigating the Shelf-Life Extension of Shrimp Surimi Using a Polysaccharide-Based Film from Alpinia oxyphylla.. Foods. 2026. PMID:41683116.PMID 41683116 ↗Journal FoodsYear 2026Study type Observational / otherEvidence strength LOW evidencePubMed link https://pubmed.ncbi.nlm.nih.gov/41683116/
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Observational / other LOW evidence YELLOWPreservatives in Leave-On Cosmetics Available on the Dutch Market. ↗de Groot AC et al.. Preservatives in Leave-On Cosmetics Available on the Dutch Market.. Contact Dermatitis. 2026. PMID:41638886.PMID 41638886 ↗Journal Contact DermatitisYear 2026Study type Observational / otherEvidence strength LOW evidencePubMed link https://pubmed.ncbi.nlm.nih.gov/41638886/
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Observational / other LOW evidence YELLOWEffects of various concentrations and volumes of potassium sorbate on colostrum bacterial contamination over time at ambient and refrigeration temperatures. ↗Denholm KS et al.. Effects of various concentrations and volumes of potassium sorbate on colostrum bacterial contamination over time at ambient and refrigeration temperatures.. J Dairy Sci. 2026. PMID:41570909.PMID 41570909 ↗Journal J Dairy SciYear 2026Study type Observational / otherEvidence strength LOW evidencePubMed link https://pubmed.ncbi.nlm.nih.gov/41570909/
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Observational / other LOW evidence YELLOWSynthesis, Characterization, and Anti-Listerial Activity of Chitosan-Stabilized Selenium Nanoparticles. ↗Anand D et al.. Synthesis, Characterization, and Anti-Listerial Activity of Chitosan-Stabilized Selenium Nanoparticles.. J Food Sci. 2026. PMID:41549643.PMID 41549643 ↗Journal J Food SciYear 2026Study type Observational / otherEvidence strength LOW evidencePubMed link https://pubmed.ncbi.nlm.nih.gov/41549643/
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Observational / other LOW evidence YELLOWApplication of Mulberry (Morus nigra) Anthocyanin Extract Combined with Carboxymethyl Chitosan for Postharvest Preservation of Strawberry (Fragaria x ananassa). ↗Zhou B et al.. Application of Mulberry (Morus nigra) Anthocyanin Extract Combined with Carboxymethyl Chitosan for Postharvest Preservation of Strawberry (Fragaria x ananassa).. Curr Issues Mol Biol. 2025. PMID:41614759.PMID 41614759 ↗Journal Curr Issues Mol BiolYear 2025Study type Observational / otherEvidence strength LOW evidencePubMed link https://pubmed.ncbi.nlm.nih.gov/41614759/
Score Transparency
0 of 10 approved references (score saturates at 10). More peer-reviewed studies = stronger evidence base.
Method: Q = number of approved references ÷ 10 (capped at 1.0)
Limited — mostly case reports or animal studies
Method: L = mean study-level weight across approved references. Level 1 (meta-analysis / systematic review) = 1.0; Level 2 (RCT) = 0.8; Level 3 (cohort/case-control) = 0.6; Level 4 (case report) = 0.4; Level 5 (animal / in-vitro) = 0.2.
Mixed or neutral — roughly equal benefit and risk signals
Method: D = (sum of risk-scored references − sum of benefit-scored references) ÷ total evidence score, then scaled from [−1, 1] to [0, 1]. 0.0 = pure benefit; 0.5 = neutral; 1.0 = pure risk.
One or more monitoring-level safety signals active
Method: S = 0.5 (neutral baseline) + sum of active signal severity deltas ÷ 10. Severity deltas: Critical = +2.0, High = +1.5, Moderate = +1.0, Low = +0.5. Capped at 1.0.
Final GIRI Score for Potassium Sorbate. Risk level thresholds: Low 0–3.0 · Moderate 3.0–5.5 · High 5.5–7.5 · Critical 7.5–10.
Full methodology & data sources
The GIRI Score is computed entirely from structured data — no editorial scoring or subjective weighting is applied at any step.
- References: Only approved references are counted. Each reference is assigned an evidence level (L1–L5) and a direction (risk / neutral / benefit) by the reference manager or AI classifier.
- Safety Signals: Sourced from regulatory agencies (FDA, EMA, Health Canada, TGA, and others) and pharmacovigilance databases. Only active signals count toward the score.
- Formula version: GIRI Score v3.7.0 — Q × L × D × S × 10.
- Limitations: The score reflects published evidence and recorded signals as of the last update date. It is not a clinical risk assessment and should not replace advice from a qualified healthcare professional.
Risk Level Classification
Based on available regulatory signals and scientific evidence, this ingredient presents a low safety concern under normal conditions of use.
0–3.0
3.0–5.5
5.5–7.5
7.5–10
The score pin shows exactly where this ingredient falls on the fixed risk scale.
What drove the Low classification for Potassium Sorbate
A score of 2.5 places this ingredient in the Low band. Thresholds: Low 0–3.0 · Moderate 3.0–5.5 · High 5.5–7.5 · Critical 7.5–10.
0 approved references.
Limited — mostly case reports or animal studies (Level 4–5).
Neutral or mixed — benefit and risk signals roughly balanced.
No active signals — S component is at neutral baseline (0.5), contributing no extra risk weight.
No major regulatory restrictions or advisories recorded across monitored jurisdictions (FDA, EMA, Health Canada, TGA, and others).
How are the Low / Moderate / High / Critical thresholds defined?
The four risk levels are fixed score bands. A score is assigned to exactly one level based on where it falls:
| Level | Score | Meaning |
|---|---|---|
| LOW | 0.0 – 2.9 | Sparse or predominantly beneficial evidence. No active safety alerts. |
| MODERATE | 3.0 – 5.4 | Mixed signals — some risk alongside benefit. Caution at high doses or in sensitive groups. |
| HIGH | 5.5 – 7.4 | Multiple studies or regulatory alerts documenting adverse effects. Professional oversight recommended. |
| CRITICAL | 7.5 – 10 | Regulatory restrictions in one or more major jurisdictions. Serious documented harm. Avoid without specialist supervision. |
Thresholds are fixed constants (GIRI_Score_Utils::LEVEL_THRESHOLDS). They do not change per ingredient and are never subject to editorial adjustment.