2, but tamarind is processed food, foot silk and tamarind shells will be processed away, leaving the meat, theoretically tamarind all meat is edible, but there is a part of the tamarind can be eaten selectively, that is, its tamarind gland.
3, some tamarind glands will contain tamarind excrement or some undigested food, etc., which may affect the taste and texture, but does not affect the health, so you can choose to eat according to their own needs.