It's a desert food. I have a food themed gallery, and have become particular about categories. So only gross foods are gross
Also doesn't seem to be actual sand. The description for Sand Cherries is Edible sand flavoured with cherry juice, fashioned into the shape of cherries!
But yeah, sand is gross to eat normally. I remember my cousin ate sand on a dare once (That I may or may not have been involved in). He threw up and we all got in trouble.