What You Need to Know
Udon is made from salt, water, wheat flour, and katsuobushi (bonito flakes), none of which contain nuts or nut derivatives. Therefore, it is considered safe for those with nut allergies as it does not include any nut-based ingredients or cross-contamination risks in traditional preparation methods.
Ingredient Breakdown
| Ingredient | Lactose-Free | Gluten-Free | Vegan | Nut-Free | Halal | Keto |
|---|---|---|---|---|---|---|
| Salt | Free | Free | Yes | Free | Yes | Yes |
| Water | Free | Free | Yes | Free | Yes | Yes |
| Wheat Flour | Free | Contains | Yes | Free | Yes | No |
| Katsuobushi (Bonito Flakes) | Free | Free | No | Free | No | Yes |
Nut Free Alternatives to Udon
Frequently Asked Questions
Is Udon safe for nut allergies?
Yes, Udon is safe for those with nut allergies as it contains no nut ingredients.
What ingredients are in Udon?
Udon is made from salt, water, wheat flour, and katsuobushi (bonito flakes), all of which are nut free.
Can I eat Udon on a nut-free diet?
Yes, Udon is compatible with a nut-free diet.
Are there any nuts in Udon noodles?
No, traditional Udon noodles do not contain any nuts.
How to ensure Udon is nut free when eating out?
Inform the restaurant of your nut allergy and ask about their preparation methods to avoid cross-contamination.
Check Udon on Other Diets
More Nut Free Checks in This Category
More Nut Free Foods
Nut Free Food Categories
Review & Data Quality
Last reviewed: 2026-05-06
This verdict is generated from ingredient-level compatibility rules and refreshed regularly through our quality pipeline.
If you see incorrect ingredient or diet data, report it on the Contact page and include this page URL.