The rambutan is a medium-sized tropical tree in the family Sapindaceae. What are the Health benefits of Rambutan Fruit for Weight Loss. Rambutan (scientifically termed as 'Nephelium Lappaceumis') is a fruit that definitely features in the list of 'Most Exotic fruits of Our Planet'. It's a fruit not a lot of. Rambutan Fruit: Nutrition Facts, Health Benefits and Culinary Uses When you eat rambutans or other foods that are rich vitamin C, you increase your body's.