Soursop facts and health benefits. The uniquely shaped soursop fruit, which resembles an oversized strawberry crossbred with an apple and covered in thorns, originates from Central and South America and is a cherished sweet treat there. Known for its blend of strawberry, pineapple, and citrus flavors, soursop is a member of the custard apple family and is celebrated not just for its delightful taste but also for its health benefits, which include reducing inflammation, boosting the immune system