Quick Answer: Is Mustard Low FODMAP?
Yes — plain yellow mustard and Dijon are low FODMAP at 1 tablespoon (23g) per Monash University testing. Larger servings and specialty mustards (honey mustard, some wholegrain) can trigger IBS symptoms.
Evidence-Based: Yellow mustard is rated green at 1 tbsp and amber at 2 tbsp+ due to accumulating fructans.
Portion Chart by Mustard Type
| Mustard | Safe Serve | Notes |
|---|---|---|
| Yellow mustard | 1 tbsp (23g) | ✅ Green — condiment amount |
| Dijon mustard | 1 tbsp | ✅ Green |
| Wholegrain mustard | 1 tsp | ⚠️ Some brands add garlic/onion |
| Honey mustard | Avoid | ❌ Honey = high FODMAP |
| English/hot mustard | 1 tsp | ✅ Usually safe — check labels |
What to Watch For on the Label
Many specialty mustards sneak in high FODMAP ingredients:
- Garlic powder / onion powder — very common in gourmet blends
- Honey — automatic disqualifier for elimination phase
- High fructose corn syrup — in cheap yellow brands
- Wheat flour — occasional thickener
Run any suspicious brand through our FODMAP Food Checker before buying.
Safe Brands (US & UK)
- French's Classic Yellow — just mustard seed, vinegar, salt, turmeric ✅
- Maille Original Dijon — clean ingredients ✅
- Colman's English Mustard — safe in small amounts ✅
How to Use Mustard on Low FODMAP
- Salad dressings — Whisk 1 tsp Dijon with olive oil, lemon, salt. Perfect over spinach.
- Marinades — Combine with maple syrup and tamari for a low FODMAP "honey mustard" swap.
- Sandwiches — Spread on gluten-free bread with turkey and lettuce.
- Sauces — Stir into cream sauces for chicken. See our Low FODMAP Baked Salmon for a mustard glaze idea.
Homemade Low FODMAP Honey Mustard Swap
Mix 2 tbsp Dijon + 1 tbsp maple syrup + 1 tsp lemon juice + pinch of salt. Tastes almost identical without the FODMAPs.
FAQ
Is mustard OK during elimination phase? Yes — 1 tbsp yellow or Dijon is safe.
Why is honey mustard off-limits? Honey contains excess fructose, a Monash-confirmed high FODMAP.
Can I eat wholegrain mustard? In 1 tsp amounts, and only if the label is garlic/onion-free.