Diet and Nutrition Benefits of Eating Rambutan By Barbie Cervoni, RD Updated on April 01, 2024 Medically reviewed by Jonathan Purtell, RDN Print Table of Contents View All Table of Contents Tasting Rambutan Rambutan Nutrition Facts Benefits Seasonality and Ripeness Who Should Avoid It? On the outside, rambutan (Nephelium lappaceum), a tropical fruit native to Southeast Asia, has a reddish-green, hairy appearance and is often described as resembling sea urchins. However, don't let that deter you; on the inside, the smooth, sweet-tart-tasting fruit offers delicious flavor and nutrients. Rambutan contains fiber, vitamins, minerals, and plant-based phytonutrients. If you are interested in trying them but are unsure how to eat them, read on to learn more about how to skin the fruit, its nutrition facts, potential health benefits, and more. Karl Tapales / Getty Images Tasting Rambutan for the First Time The name "rambutan" comes from the Malay word "rambut," meaning "hair." Rambutan belongs to the same family as lychee and longan; its taste ranges from sweet to sour depending on its growing stage. Its texture can be described as similar to that of a grape. While the exterior is odd-looking, the inside of the rambutan is smooth. How to Open Rambutan Skin Wash the fruit thoroughly and use your fingers (to peel), your mouth (to nibble), or a knife to crack the fruit. If using a knife, slice around the middle of the fruit, similar to how you would an avocado. Deep enough to peel it, but not too deep that you are piercing the fruit. Once you crack the fruit, peel off the top and pull out the white flesh (aril). Inside the white flesh is a seed (pit). Bite into the rambutan and spit out the pit or cut it out. Consume rambutan raw for a refreshing, sweet, tart snack, or muddle it into cocktails, desserts, juice, smoothies, and jam. The flavor is similar to lychee but slightly tarter. Rambutan and Lychee Rambutan is related to lychee and longan fruit. Some people refer to rambutan as a "hairy lychee." In appearance, lychee is typically pink or red with no spines, while rambutan contains spines. They both have a sweet and slightly sour taste. Rambutan Compounds and Nutrition Profile The United States Department of Agriculture (USDA) Nutrient Database does not list the nutrition facts for fresh rambutan. However, they list facts for 1 cup of rambutan canned in syrup and drained (150g). Calories: 123Fat: 0.3 grams (g)Carbohydrates: 31.3 gFiber: 1.4 gProtein: 1 gSugars: Not specifiedSodium: 16.5 milligrams (mg)Calcium: 33 mgVitamin C: 7.4 mgMagnesium: 10.5 mgPhosphorus: 13.5 mgManganese: 0.5 mgCopper: 0.099 mg Benefits of Eating More Rambutan Rambutan is a good source of vitamin C, minerals, and plant-based compounds. Its roots and skin have been used in different countries to treat fevers and other ailments. Good Source of Vitamin C Like many fruits, rambutan is a good source of vitamin C. This water-soluble vitamin assists in iron absorption, plays a role in immune function, wound healing, and collagen production, and is a potent antioxidant. The Recommended Dietary Allowance (RDA) of vitamin C is 90 mg for men and 75 mg for women. A 1-cup serving of rambutan provides about 8%-10% of your daily vitamin C needs. Fiber Promotes Gut Health Fruit contains fiber, which increases bowel regularity and elimination. Fiber is an essential nutrient, and adequate intake is linked to better metabolic health and reduced risk of certain cancers, obesity, heart disease, and more. Optimizing fiber intake also improves your gut's flora (healthy bacteria). Having more good bacteria assists in controlling bad bacteria. Higher levels of harmful bacteria, compared to good, are referred to as dysbiosis and are linked to several adverse health outcomes. Contains Manganese and Copper Rambutan contains the micronutrients manganese and copper. Manganese is a cofactor for several enzymes involved in bone formation and plays a role in carbohydrate and fat metabolism. Copper, an essential mineral, is also a cofactor for several enzymes and is involved in energy production, iron metabolism, connective tissue synthesis, and neurotransmitter synthesis. Other Potential Benefits Some research suggests that rambutan peel extracts contain plant-based compounds (such as corilagin, ellagic acid, and geraniin). These compounds may benefit blood sugar (glucose) and other protective mechanisms, such as: Antibacterial Anti-inflammatory Antimicrobial Anticancer Cardioprotective effects However, most of these studies were conducted in test tubes and animals, so more research is needed. Seasonality and Rambutan Ripeness Rambutan should be bright red, orange, or yellow in color, uniform in size, and free of blemishes. It is ripe and fresh when the tendrils or spines (hair-like outer parts) are not too dry or crispy. If the fruit feels light, it could indicate that the flesh is shrinking and the fruit is overripe. Brownish-colored fruit is also a sign that the fruit is too ripe. The seasonality of rambutan depends on where it is grown, but it is usually available in winter (December/January) and fall. Should Anyone Not Eat Rambutan? If you are allergic to rambutan, you should not consume it. You may also need to avoid it if you are allergic to fruits within the same family, such as lychee. You may want to be cautious if you have other types of allergies. Reach out to a healthcare provider if you are uncertain. If you have irritable bowel syndrome and must follow a low FODMAP diet, rambutan may not be for you. Summary Rambutan is an interesting and nutritious fruit. Once you get past its appearance, you can enjoy its grape-like texture and refreshing, tart flavor. Find it in specialty markets or ask your local grocery store if they carry it seasonally. You may also choose to purchase it canned. Eat it whole, spit out the pit, or add it to smoothies, desserts, or cocktails. Adding new and exotic foods to your diet is a great way to make eating joyful and increase your nutrient variety. If you are allergic to rambutan, stay away from it, and use caution if you are allergic to other fruits like lychee, which belong to the same family. 9 Sources Verywell Health uses only high-quality sources, including peer-reviewed studies, to support the facts within our articles. Read our editorial process to learn more about how we fact-check and keep our content accurate, reliable, and trustworthy. Deng H, Wu G, Zhang R, et al. Comparative nutritional and metabolic analysis reveals the taste variations during yellow rambutan fruit maturation. Food Chem X. 2023;17:100580. doi:10.1016/j.fochx.2023.100580 University of Hawai'i at Manoa. College of Tropical Agriculture and Human Resources. Rambutan: Postharvest quality-maintenance guidelines. U.S. Department of Agriculture. Rambutan, canned, syrup pack. Afzaal M, Saeed F, Bibi M,et al. Nutritional, pharmaceutical, and functional aspects of rambutan in industrial perspective. Food Sci Nutr. 2023;11(7):3675-3685. doi:10.1002/fsn3.3379 National Institute of Health. Office of Dietary Supplements. Vitamin C. Barber TM, Kabisch S, Pfeiffer AFH, Weickert MO. The health benefits of dietary fibre. Nutrients. 2020;12(10):3209. doi:10.3390/nu12103209 National Institute of Health. Office of Dietary Supplements. Manganese. National Institutes of Health. Office of Dietary Supplements. Copper. Specialty Produce. Rambutan. By Barbie Cervoni, RD Cervoni is a New York-based registered dietitian and certified diabetes care and education specialist. See Our Editorial Process Meet Our Medical Expert Board Share Feedback Was this page helpful? Thanks for your feedback! What is your feedback? Other Helpful Report an Error Submit