Quince
Food · Fruit · Food, Typed Supps
Quince looks like a bumpy pear, but you almost always have to cook it before eating — raw, it's rock-hard and mouth-puckering.
Stage by stage
- Chewing (Mouth): Quince's dense flesh and tannins make it taste dry and puckery raw, which is why it's traditionally cooked before eating.
- Stomach (Stomach): In the stomach, digestion begins breaking down quince's natural sugars and its soluble fiber, pectin, which forms a gel.
- Small Intestine (Small Intestine): The small intestine absorbs vitamin C, potassium, and the gelled pectin fiber, which slows sugar uptake and supports gut motility.
- Tissue Use (Skin & Blood Vessels): Vitamin C absorbed from quince helps build collagen for skin and blood vessels, while potassium and fiber support heart and digestive health.
Timing
Quince is virtually always eaten cooked, most often as jam, paste, or baked into desserts, which also softens its tough, tannic texture.
Time to effect
- Hours to weeks: The fiber in cooked quince can slow digestion and blunt post-meal blood sugar spikes within hours, while sustained benefits to heart health and regularity build over weeks of regular consumption.
Allergens
None of the fourteen major allergens. Derived from what this food is, not from a product label.
Eating patterns
Fits: Vegan, Vegetarian, Pescatarian, Halal, Kosher, Gluten-free. Depends on the product: Low-FODMAP.
In season
October to December in the northern hemisphere, April to June in the southern.
Satiety
224 on the satiety index, where white bread is 100 — very high. Modelled from the Holt et al. (1995) measurements.
Environmental footprint
0.4 kg CO2e and 180 litres of freshwater per kg, matched to "Apples" in Poore & Nemecek (2018), Science 360.
Cost band
Cheap — roughly £3 per kg, as a band midpoint rather than a price.
Key nutrients
Nutrition per 100g
- Calories: 57.8
- Protein: 0.5g
- Carbohydrate: 11g
- of which sugars: 11g
- Fat: 0.2g
- of which saturated: 0g
- Fibre: 5.2g
- Sodium: 16mg
Food vs. supplement
Whole quince provides vitamin C, potassium, and pectin fiber together in a low-calorie package that isolated supplements don't replicate, though it's almost always eaten cooked with added sugar rather than raw.
Kitchen tip
Peel, core, and simmer quince slices until they turn rosy pink and tender; keep peeled pieces in acidulated water to prevent browning, and never chew or blend the seeds.
Common myth
"Quince is poisonous and can't be eaten raw." In reality: Quince flesh is not toxic; it's simply hard, sour, and astringent raw, so it's traditionally cooked for palatability. The genuine safety concern is amygdalin in the seeds, which releases cyanide only if seeds are crushed or chewed in quantity — whole swallowed seeds pose negligible risk.
Recipes that use it
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