Jackfruit
Food · Fruit · Food, Typed Supps
Jackfruit tastes sweet and fruity and shreds like pulled meat, but it's really a fiber-and-potassium fruit, not a protein powerhouse.
Stage by stage
- Chewing & Swallowing (Mouth): Fresh or cooked jackfruit's fibrous, stringy flesh breaks apart easily when chewed, releasing its natural sugars and mild tropical aroma.
- Gastric Breakdown (Stomach): In the stomach, gastric acid and enzymes begin digesting jackfruit's sugars and small amount of protein and fat, while its fiber resists breakdown and slows emptying.
- Nutrient Absorption (Small intestine): In the small intestine, sugars, potassium, vitamin C, and B-vitamins are absorbed into the bloodstream, while most of the fiber travels on undigested toward the colon.
- Circulation & Use (Bloodstream): Absorbed potassium helps regulate fluid balance, nerve signalling, and heart rhythm, while vitamin C supports collagen formation and antioxidant defenses throughout the body.
Timing
Because ripe jackfruit's natural sugars carry a moderate-to-high glycemic index, pairing it with a protein or fat source can help blunt the blood sugar spike, which matters most for people managing diabetes.
Time to effect
- Hours to weeks: A quick blood-sugar rise from its natural sugars appears within about 30 to 60 minutes of eating, while any measurable benefit to potassium or vitamin C status depends on eating it regularly as part of a varied diet over days to weeks.
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.
Satiety
172 on the satiety index, where white bread is 100 — high. Modelled from the Holt et al. (1995) measurements.
Environmental footprint
1.1 kg CO2e and 199 litres of freshwater per kg, matched to "Other fruit" 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: 82.9
- Protein: 2.2g
- Carbohydrate: 16.7g
- of which sugars: 16.3g
- Fat: 0.3g
- of which saturated: 0g
- Fibre: 3g
- Sodium: 3mg
Food vs. supplement
Whole jackfruit delivers potassium and vitamin C alongside fiber and antioxidants that isolated supplements don't combine, though its relatively high natural sugar content means it shouldn't be treated as a low-calorie stand-in for other produce.
Kitchen tip
Oil your hands and knife before cutting fresh jackfruit to handle its sticky sap, and always cook the seeds -- boiling or roasting neutralizes tannins and trypsin inhibitors that can irritate the gut when eaten raw.
Common myth
"Jackfruit is a high-protein meat substitute." In reality: Ripe or young jackfruit has only about 1.7 g of protein per 100 g -- roughly a tenth of what meat, legumes, or tofu provide -- so while its fibrous texture convincingly mimics pulled meat, dishes built around it need an added protein source to actually match meat's nutritional role.
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