E951 vs E966: Which Is Safer? (2026 Comparison)

Q: Which is healthier: E951 or E966?

Based on our safety analysis, both appears to have a better safety profile. Use the CheckIt app to scan specific products.

CheckIt AI

E951 vs E966

Wondering whether E951 or E966 is safer? We compared both ingredients based on independent research, regulatory status, and known health effects.

Quick Verdict

Both E951 and E966 have similar safety profiles.

Side-by-Side Comparison

Factor	E951	E966
Safety Rating	⚠️ Use With Caution	⚠️ Use With Caution
Safety Score	60/100	60/100
Category	artificial sweeteners	artificial sweeteners

About E951

EU code for aspartame. Controversial artificial sweetener classified as 'possibly carcinogenic' by IARC.

About E966

A sugar alcohol from lactose. Used in sugar-free candy. Strong laxative effect.

E951 vs E966: Key Differences

E951 is rated caution while E966 is rated caution
E951 falls under the artificial sweeteners category
E966 falls under the artificial sweeteners category

Which Should You Choose?

Both ingredients carry similar risks. Read labels carefully and consider your individual health needs. The CheckIt app can scan any product to show you exactly which of these ingredients are present.

Scan Products Free with CheckIt →

Frequently Asked Questions

Is E951 safe to eat?: EU code for aspartame. Controversial artificial sweetener classified as 'possibly carcinogenic' by IARC.
Is E966 safe to eat?: A sugar alcohol from lactose. Used in sugar-free candy. Strong laxative effect.
Which is healthier: E951 or E966?: Both have similar safety profiles. Use the CheckIt app to scan products containing either ingredient for a detailed breakdown.
Can I avoid both E951 and E966?: Yes! The CheckIt app can filter products by specific ingredients you want to avoid. Scan any product to see all ingredients instantly.