Mannitol
Learn what Mannitol (E421) is, why it's added to food, whether it's safe, and which products contain it.
Low concernWhat is Mannitol?
Food additive used as a low-calorie sweetener, stabilizer, humectant, emulsifying salt (chelating agent), volume agent, anti-caking agent, and thickener. It is naturally present in many plants but is industrially derived from glucose. It is also used as a carrier substance for other food additives. Mannitol is used in the quantities specified in recipes for low-calorie confectionery and bakery products, cereals-based desserts, fruits, vegetables, fats, eggs, cocoa, milk, sauces, toppings, and dressings.
Why is Mannitol added to food?
Mannitol (E421) is a sweetener commonly found in: Low-calorie confectionery products, cereals, sauces, mustard.
Permitted quantity: No maximum allowable dose has been established.
Is Mannitol safe?
Low concern
No secondary effects have been reported at the quantities incorporated into foods.
Is Mannitol banned anywhere?
✓ Not currently banned in the EU or known to be restricted in other countries.
Is Mannitol okay for kids?
Not permitted in foods intended for infants and young children.
Common foods that contain Mannitol
- Low-calorie confectionery products
- cereals
- sauces
- mustard
How to spot Mannitol on labels
Look for any of these names in the ingredients list:
- E421
- Mannitol
Common misspellings to watch for:
- mannitol
- mdnnitol
- mannltol
Better alternatives
• May cause gastrointestinal discomfort, including bloating, abdominal cramps, and diarrhea, in case of excessive consumption. • People with kidney conditions or renal insufficiency should avoid its use, as mannitol can affect kidney function. • Not recommended for people with heart failure or cardiovascular conditions, as it may affect the body's fluid and electrolyte balance. • Using mannitol in large quantities can lead to dehydration or imbalances in blood electrolyte levels. • Pregnant or breastfeeding women should consult a doctor before use.
Also known as
- mannitol
- mdnnitol
- mannltol
Scan products with BioBrief
Not sure if a product contains Mannitol? BioBrief scans the barcode and instantly shows you every additive in the ingredients list — including E421 — with a plain-language explanation.
Frequently asked questions about Mannitol
- Is Mannitol safe to eat?
- No secondary effects have been reported at the quantities incorporated into foods.
- Is Mannitol banned anywhere?
- Mannitol is not currently banned in the EU or known to be restricted in other countries.
- Is Mannitol safe for children?
- Not permitted in foods intended for infants and young children.
- How do I spot Mannitol on a food label?
- Look for E421, Mannitol in the ingredients list. It may also appear as: mannitol, mdnnitol, mannltol.
Ingredients change. Always check the actual product label before purchasing. Information on this page is for educational purposes only.