Jackfruit is a nutritious tropical fruit, low in calories and rich in fiber, antioxidants, and potassium. A 100-gram serving (roughly half a cup) contains about 95 calories, 3 grams of fiber, and 2 grams of protein, with almost no fat. It also delivers a variety of plant compounds linked to heart health, blood sugar control, and reduced inflammation.
That said, how you eat jackfruit matters. Ripe jackfruit is naturally high in sugar, canned versions can be loaded with sodium, and its reputation as a “meat substitute” oversells its protein content. Here’s what the nutrition actually looks like.
What’s in a Serving
Per 100 grams of raw jackfruit, you get about 95 calories, 3 grams of dietary fiber, 2.2 grams of protein, and 16.3 grams of sugar. It contains some vitamin C (6 mg per 100 grams, roughly 7% of the daily value) along with meaningful amounts of potassium and phosphorus. The calorie count is comparable to other tropical fruits like mango or pineapple, but jackfruit edges them out on fiber.
The fiber content is one of jackfruit’s genuine strengths. Three grams per 100-gram serving puts it ahead of many common fruits, and that fiber plays a role in digestion, cholesterol management, and feeling full after eating. The seeds, which are edible when cooked, are even more nutritious: they contain about 11% dietary fiber and 8% resistant starch, a type of starch that feeds beneficial gut bacteria rather than spiking blood sugar.
Ripe vs. Green Jackfruit
The two forms of jackfruit you’ll encounter are nutritionally quite different. Ripe jackfruit is the sweet, yellow-fleshed version sold fresh or canned in syrup. It tastes like a cross between pineapple and banana, and it carries 16 grams of sugar per 100-gram serving. That’s natural fruit sugar, but it adds up quickly if you’re eating large portions.
Young green jackfruit is the starchy, neutral-tasting version sold in cans or pouches, often marketed as a meat alternative. Because it’s harvested before the sugars develop, it’s lower in sugar and calories. Its stringy, pull-apart texture is what makes it popular in tacos, sandwiches, and curries. One clinical trial found that replacing rice or wheat flour with green jackfruit flour in the diets of people with type 2 diabetes led to a significant drop in HbA1c (a key marker of long-term blood sugar control) over 12 weeks, while a control group saw no improvement.
Blood Sugar Effects
Despite being a starchy, sugary fruit, jackfruit has a lower impact on blood sugar than you might expect. A jackfruit-based meal has been measured at a glycemic index of 75, which sounds high on its own but lands in the “low GI” category when you account for a normal serving size. The glycemic load, which reflects what actually happens in your body after a real-world portion, is medium.
Part of the reason is that jackfruit contains what researchers call “slowly available glucose,” meaning your body breaks it down and absorbs the sugar more gradually. The jackfruit meal tested had twice the slowly available glucose of the reference food. Combined with its fiber and resistant starch (especially from the seeds), jackfruit doesn’t cause the sharp blood sugar spike you’d get from white bread or white rice with the same amount of carbohydrate.
Antioxidants and Anti-Inflammatory Compounds
Jackfruit’s yellow and orange color comes from carotenoids, the same family of pigments found in carrots and sweet potatoes. The key ones include lutein and beta-carotene, both of which your body can convert into vitamin A. Carotenoids are associated with lower risk of cardiovascular disease, certain cancers, cataracts, and age-related vision loss.
Beyond carotenoids, jackfruit contains flavonoids and phenolic compounds that account for roughly 70% of its total antioxidant activity. These compounds help neutralize free radicals, unstable molecules that damage cells and contribute to chronic disease over time. The flavonoids in jackfruit also appear to inhibit the release of inflammatory signaling molecules, which is relevant for conditions driven by chronic low-grade inflammation like heart disease and type 2 diabetes.
Heart Health Benefits
Jackfruit’s combination of potassium, fiber, and antioxidants makes it a heart-friendly food. Potassium helps counteract the blood-pressure-raising effects of sodium. Most adults don’t get enough potassium, so adding potassium-rich foods like jackfruit to your diet can help close that gap. Meanwhile, the soluble fiber in jackfruit contributes to lowering LDL cholesterol by binding to cholesterol in the digestive tract and carrying it out of the body.
The “Meat Substitute” Question
Young green jackfruit has become a popular stand-in for pulled pork and shredded chicken in plant-based cooking. The texture is genuinely convincing. The nutrition, however, is not comparable. With just 2 grams of protein per 100 grams, jackfruit delivers a fraction of what you’d get from chicken (31 grams) or pork (25 grams) in the same amount. It also lacks the complete amino acid profile of animal protein.
This doesn’t make jackfruit a bad choice for plant-based meals. It just means you need to pair it with actual protein sources like beans, lentils, nuts, or tofu. Think of jackfruit as the texture and vehicle in a dish, not the protein. If you’re relying on jackfruit as your main protein source in multiple meals, you’ll fall short.
Watch for Sodium in Canned Versions
Canned young jackfruit in brine can contain nearly 600 mg of sodium per serving, which is about a quarter of the recommended daily limit. If you’re using canned jackfruit, draining and rinsing it thoroughly can reduce the sodium content significantly. Look for low-sodium versions when available, or buy jackfruit packed in water rather than brine. Canned jackfruit in syrup, on the other hand, adds unnecessary sugar on top of the fruit’s natural sweetness.
Allergy Risks
Jackfruit allergies are uncommon but worth knowing about if you have a latex allergy or birch pollen allergy. There’s documented cross-reactivity between jackfruit and latex proteins, meaning your immune system may react to jackfruit if it already reacts to latex. The same goes for birch pollen: people with birch pollen allergies sometimes react to jackfruit through a related protein. Severe reactions including anaphylaxis have been reported, though only in a handful of published cases. If you have a known latex or birch pollen allergy, try a small amount of jackfruit first and watch for symptoms like itching, swelling, or difficulty breathing.
Interestingly, cooking appears to break down some of the allergenic proteins. In at least one documented case, a patient who reacted to raw jackfruit tested negative to cooked jackfruit on skin prick testing.