The benefits of jackfruit Like all fruits, jackfruit supplies plenty of nutritional perks: It’s low in calories, naturally fat- and sodium-free, provides ample vitamin A (in the form of beta-carotene) and vitamin C, and packs in a surprising blood pressure-lowering potassium. It's also rich in fiber, which means it can help you feel satisfied on fewer calories. Many of the heat-and-eat jackfruit products provide about 6 grams fiber and 100-120 calories per serving. While jackfruit is often marketed as a meat substitute, it’s nutritionally more similar to a starchy vegetable than lean protein. A typical serving of a jackfruit product will have 2 grams of protein, compared to 6-7 grams of protein in an ounce of meat, poultry or fish. So for a balanced meal, make sure you pair your jackfruit with a side of beans, or other protein.