Back to Polyols food checker
fennel fronds
Vegetables
Is fennel fronds high in polyols?
Is fennel fronds high or low in polyols? See its exact rating, how much counts as a portion, and its FODMAP, salicylate, oxalate and diet compatibility in one place.
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Sensitivity notes
Why polyols food checker matters
Polyols (sugar alcohols) are found naturally in some fruits and vegetables, and are used as artificial sweeteners. They're poorly absorbed and can cause digestive symptoms, especially in IBS sufferers.
- Avoid sugar-free products with sorbitol, mannitol, xylitol, maltitol
- Stone fruits are naturally high in polyols
- Cooking doesn't reduce polyol content
- Avocado portion size matters - small amounts may be fine
- Cauliflower and mushrooms are common triggers
Sensitivities
What fennel fronds contains
FODMAPs
Histamine & Amines
Plant compounds
Irritants
Additives
Allergens
Diet fit
Where fennel fronds fits
Therapeutic diets
Lifestyle diets
Religious diets
What to know about fennel fronds
Fennel fronds are the feathery green tops, and they grade nothing like the rest of the plant. The fronds come back clean on FODMAPs, fructans, histamine, histamine liberation, oxalate, nickel, glutamates and gluten, with moderate salicylates as the single reading worth naming. The bulb is a different food on the same stalk: it grades high on fructans, high on total FODMAPs and high on salicylates. Fennel seed is different again, moderate on salicylates with a mild histamine liberator note. So the honest answer to "is fennel a trigger" depends entirely on which part is on the plate, and the fronds are the forgiving one. They are also used as a herb in pinches, which means the realistic dose is a fraction of a bulb serving.
Watch for
- Do not carry the bulb's grades over to the fronds or the other way round.Fennel bulb is high on fructans and salicylates, the fronds are clean on FODMAPs and only moderate on salicylates. Logging them as one food will make your diary blame the wrong thing.
- Salicylates rate moderate.A garnish is a pinch and irrelevant, but a frond heavy pesto, a fistful stirred through a grain salad or fennel top tea is a real salicylate dose during a strict elimination.
- Fennel seed is its own entry, moderate on salicylates and often chewed by the spoonful after a meal, which is a much bigger dose than it feels like.
- Fennel belongs to the Apiaceae family alongside celery, carrot, dill and coriander.If you have birch or mugwort pollen allergy with cross reactions to that family, the fronds can provoke oral itching even though the trigger grades are clean.
- Clean on histamine and histamine liberation, which makes fronds one of the few fresh herbs that stays usable on a strict low histamine kitchen.
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Polyols Guide
Everything you need to know about polyols sensitivity and smart food choices.
Polyols (sugar alcohols) are found naturally in some fruits and vegetables, and are used as artificial sweeteners. They're poorly absorbed and can cause digestive symptoms, especially in IBS sufferers.
Sensitivity varies widely. What triggers one person may be fine for another. Track your reactions to find your personal threshold.
These foods are generally well-tolerated for Polyols sensitivity:
View all safe options
These foods have moderate levels and may be tolerated in small amounts:
These foods are high in polyols and may trigger symptoms:
View full list
If you're sensitive to Polyols, consider these strategies:
- 1Avoid sugar-free products with sorbitol, mannitol, xylitol, maltitol
- 2Stone fruits are naturally high in polyols
- 3Cooking doesn't reduce polyol content
- 4Avocado portion size matters - small amounts may be fine
- 5Cauliflower and mushrooms are common triggers
Pro tip: Keep a food diary to track your reactions. The Triggerbites app makes this easy with automatic pattern detection.
Want personalized tracking?
Download Triggerbites to log meals, track symptoms, and discover your unique triggers.
Get the AppFAQ
Is fennel fronds high in Polyols?
Polyols: low signal for most people.
Can I still eat fennel fronds if I'm sensitive to Polyols?
Usually fine in normal portions.
What else should I check?
Check Low Fibre, Salicylates, and Low Salicylate next for a fuller picture.