Order protocol
Sleep & recovery Whole topic
Hormones & energy Whole topic
Metabolism & nutrition Whole topic
Brain & mind Whole topic
Longevity & body Whole topic
Women & family Whole topic
Basics & environment Whole topic
Biohacking & technology Whole topic
Fénix Methode

Tired of generic advice? A protocol built on your numbers.

Order protocol
All articles Every article is based on a chapter of the book NAVRHNUTÝ and peer-reviewed studies.
Biohacker score2 minutes – find out where your body holds you back Results checkNormal vs. optimal for your blood values Biological ageHow old your body is – from 9 blood values CalculatorsBMI, waist, protein, sleep, caffeine, VO2max Daily helperDaily routines, light, sleep and breathing on your phone My stackCheck supplements & medication + daily plan ChallengesSmall daily habits with reminders Fitness testVO2max, fitness age, strength and balance at home Biological twinAll your data in a 3D body What to get testedPrintable list of blood tests Sample protocolSee what you get E-numbers & sugarsWhat is on the label and what to avoid Online advisorAnswers to common questions about body and results SupplementsForms, timing and combination check RecipesMeals without hidden sugars or needless additives GlossaryBiohacking explained from A to Z Gift voucherGive health – the protocol or the book
← Back to the E-number overview
E967Fine

Xylitol

Group: Sweeteners

Harm level2 of 5Low concern

In plain words

Xylitol is a sugar alcohol as sweet as sugar, with fewer calories and only a small effect on blood sugar. You most often find it in chewing gum, sugar-free sweets, toothpaste and as a sugar substitute for baking.

Where you find it: chewing gum, mints, baking sweetener

Our recommendation

No need to avoid; increase the amount gradually and keep it away from dogs.

Possible risks and effects

  • Bloating and diarrhoea in large doses.
  • Toxic to dogs – never give them foods containing xylitol.

For experts

Xylitol is a five-carbon polyol produced by hydrogenating xylose from birch wood or corn cobs. Oral bacteria cannot ferment it, so it does not cause tooth decay, and the EU has authorised a health claim on the dental benefit of replacing sugar. No numerical ADI is set; larger doses are laxative and even small amounts are life-threatening for dogs.

Check another E-number

More from this group

E950Acesulfame KE952CyclamateE420SorbitolE421MannitolE951AspartameE953IsomaltE954SaccharinE955Sucralose

This information is educational and based on EFSA assessments and available studies; it does not replace medical advice. With allergies, intolerances or illness, follow your doctor’s advice.