✓ No active regulatory warningsFDA MedWatch, EMA EudraVigilance, WHO VigiBase, WADA Prohibited List · 2026-05-29
📰Read the full Sucralose evidence review on GMJ News →Complete clinical article, references and updates on news.gmj.ge. This page is the structured safety summary.⚠ Patient concerned about sucralose in supplements — >110 studies support safety at ADI [1]
⚠ Patient thinking Splenda® is calorie-free — packets contain maltodextrin (~3 kcal) [1]
⚠ Patient with multiple NNS sources (diet soda + supplements + tabletop) — calculate cumulative exposure vs ADI [1]
ℹ️ Not obtained from food. Not applicable — this is a sweetener/additive, not a nutrient you build up from a daily diet.
🔬 Lab interpreter
ℹ️ No validated blood test. There is no established laboratory test to assess status or guide dosing for this ingredient. Clinical response and symptoms are the practical guide.
⚕ For professionals — confirm ranges against your local laboratory.
Clinical verdict
Sucralose is the most widely used artificial sweetener in supplements (protein powders, pre-workouts, liquid vitamins). Safety is supported by >110 studies and >80 country approvals. Recent gut microbiome and genotoxicity studies are hypothesis-generating but have not changed regulatory status. Heat-stable (unlike aspartame). For concerned patients: stevia or erythritol are alternatives [1] [2].
1 How much do I need?
👤 Adults: Specific dosage data under clinical review
👴 Elderly: Specific dosage data under clinical review
🤰 Pregnancy: See guidance
Safe within ADI per FDA and EFSA [1].
👦 Pediatric: See guidance
ADI applies on body-weight basis. Safe within ADI. Children's lower body weight means fewer servings to reach ADI [1].
🏃 Athletes: Standard dose
⚖️ Obesity: Standard dose
Fat-soluble compounds may require dose adjustment in obesity.
🩺 Renal: Consult specialist
Dose adjustment may be needed in renal impairment.
🌱 Vegan: Standard dose
How to take
🍽 Timing: N/A — excipient/sweetener [1].
💊 With food: N/A [1].
🚫 Avoid: Exceeding ADI from cumulative sources [1].
2 Which form?
| Form | Bioavailability | Vegan | Cost |
|---|---|---|---|
| ['Sucralose in supplements', 'excipient', "Used in protein powders, pre-workouts, BCAAs, liquid vitamins. Listed in 'Other Ingredients' [1]."] | Standard | Check label | |
| ['Sucralose tabletop sweetener (Splenda®)', 'consumer', 'Granulated (with maltodextrin bulking), liquid, or tablet form [1].'] | Standard | Check label | |
| ['Sucralose in beverages', 'food industry', 'Diet sodas, flavored waters, sports drinks [1].'] | Standard | Check label |
3 Common questions
Is sucralose safe? ▼
Over 110 safety studies support sucralose's safety at the established ADI. It is approved in >80 countries by regulatory bodies including FDA, EFSA, and JECFA. Recent studies on gut microbiome and genotoxicity of a metabolite (sucralose-6-acetate) have prompted discussion but have NOT led to regulatory status changes. The weight of evidence supports safety at normal consumption levels [1] [2].
Does sucralose affect gut bacteria? ▼
Animal studies at high doses and one small human study suggest modest microbiome shifts. The clinical significance is uncertain — no GI symptoms or health outcomes were observed in human studies. The doses used in rodent studies often far exceed human exposure. This is an active area of research [2].
Is sucralose the same as Splenda? ▼
Splenda® is a brand name for sucralose-based sweetener. However, Splenda® packets contain maltodextrin as a bulking agent (adding ~3 kcal per packet). Pure sucralose is calorie-free. In supplements, it's the pure sucralose that's used [1].
Can I cook with sucralose? ▼
Yes. Unlike aspartame, sucralose is heat-stable up to ~120°C and can be used in baking and cooking. This is one of its main advantages over other artificial sweeteners [1].
4 Clinical evidence
Strong
Safety: >110 studies reviewed by FDA, EFSA, JECFA, and WHO. Approved in >80 countries. ADI established with large safety margins [1]. HIGH
Moderate
Gut microbiome: rodent studies show sucralose at high doses alters gut bacterial composition (reduced Bacteroidetes, increased Firmicutes). A small human crossover study found 48 mg/day × 10 weeks modestly affected microbiome but without clinical symptoms [2]. Glucose-insulin: a controversial 2013 study found sucralose increased insulin secretion and glucose peak when consumed before a glucose load; subsequent studies have been inconsistent [2]. DNA genotoxicity: a 2023 in vitro study suggested sucralose-6-acetate (a metabolite) may have genotoxic potential at high concentrations, prompting calls for further investigation [2]. MODERATE
Insufficient
5 Safety, toxicity & adverse events
Relative
⚠ Some people report GI symptoms or altered glucose/insulin responses; effects on gut microbiome under study
⚠ Avoid heating to high temperatures (degradation products)
🚩 Red flags
● Patient consuming extreme amounts of diet products potentially exceeding ADI [1]
6 Interactions
Drug interactions
7 Regulatory
United States (FDA): Approved as general-purpose sweetener (1999). ADI: 5 mg/kg/day. Listed as food additive, not GRAS [1].
European Union (EFSA): Approved as E955. ADI: 15 mg/kg/day. 2016 re-evaluation confirmed safety [1].
JECFA (WHO/FAO): ADI: 0–15 mg/kg/day. Reviewed multiple times; safety confirmed [1].
8 US supplement products
2,028
on-market products containing Sucralose (NIH DSLD)
Brands carrying Sucralose (334)
Click a brand to see its Sucralose products.
9 Frequently paired with
10 Cite this page
Vancouver: Pkhakadze G. Sucralose — safety profile [Internet]. Tbilisi: PHIG; 2026 [cited 2026 Jul 15]. Available from: https://supplement.ge/ingredients/sucralose/
APA 7th: Pkhakadze, G. (2026). Sucralose — Safety profile. Public Health Institute of Georgia. https://supplement.ge/ingredients/sucralose/
📋 Editorial information
Author: Prof. G. Pkhakadze, MD, MPH, PhD
Institution: Public Health Institute of Georgia (PHIG)
Affiliation: David Tvildiani Medical University (DTMU)
First published: January 2026
Last reviewed: 2026-05-29
Next review: January 2027
References: 3 cited sources
COI: SupplementIndex receives no funding from supplement manufacturers. All content independently authored by PHIG.
Process: Systematic literature review
📄 License & reuse
Published under Creative Commons Attribution 4.0 International (CC BY 4.0). You may share and adapt for any purpose with attribution.
Pkhakadze G. "Sucralose — Safety Profile." SupplementIndex, PHIG, 2026. https://supplement.ge/ingredients/sucralose/ CC BY 4.0.
GP
Prof. G. Pkhakadze, MD, MPH, PhD
Professor of Public Health · Head of Department, DTMU
Editor-in-Chief, Georgian Medical Journal (ISSN 3088-4322)
Chair, Public Health Institute of Georgia · UEMS Public Health Section
Educational and public health purposes. CC BY 4.0. Consult your healthcare provider before starting any supplement. Corrections: info@accreditation.ge. Publisher: PHIG