Santol fruit is a type of tropical fruit grown in Asia, commonly in the Philippines but also in Malaysia. There are numerous believed health benefits of eating this fruit, some of which include creating an inhospitable environment for cancer, curing fevers and boosting your immune system. This is because of an antioxidant that is released through the fruit called 'quercetin'. It is also said to be high in fibre, as well has having a low glycemic index, making it an excellent source of food for diabetics.
A lot of the best benefits of this fruit are found in it's pulp. It is rich in Byronic acid, as well as sandoruim acid, which is excellent for avoiding allergies. The fruit is also excellent for excreting energy since it is a rich source of carbohydrates.
I have provided a table for you, which includes all the nutrients found in Santol fruit, From Fruits info
I hope this answers your question.