Hi health,
I've never tried hippophaes, but I do eat a good amount of hard food (ground food). Hard food is yams, green bananas, plantain and dasheene all boiled together in one pot. The dish is Caribbean in it's origin, and it is really nourishing for the body and good for strength.
It's believed that yams was one of the most included foods in the Jamaican racing teams diet, and we all know how their performance at the Olympic turned out
