forbidden items by the BVI custom check, if any?

Hi there,
I need your help please!
While visiting Tortola, and flying from San Jose, CA, USA to perhaps STT which I am planning to do in December 2017, can I bring a couple of cases of food for my local friends, such as dry spices, seeds, nuts, grains, dry fruit, dry crackers, dry probiotics, food supplements? What items are forbidden by the BVI custom check, if any? How can I see the current rules for that matter? Please advise. Thank you so much!