Bitter yam is eaten by the three major tribes in Nigeria. often as a special delicacy. The Ekiti people of Western Nigeria even consume it as a staple diet. It is also used by the locals for medicinal purposes. https://www.markbroyard.com/hot-sale-nutribiotic-grapefruit-citrus-seed-extract-traveler-s-friend-30ml-for-sale-limited-super/