I don't know much about it either. Just that its 'buckwheat' and the farinietta refers to the "Fine granulation of mixture of aleurone layer of hulled seed and seed embryo, the richest parts of seed."
"Technically, buckwheat is not a grain. It’s not even related to wheat. It is a seed, from the rhubarb family, but one that can be used in a wide range of recipes in a manner similar to wheat. Buckwheat is quite a nutritional powerhouse. Since it is not a wheat, it doesn’t contain gluten..."
The reason its so good for PCOS is that it contains D-chiro-inositol which "lowers free and total testosterone, lowers blood pressure, increases insulin sensitivity and a corresponding improvement in glucose disposal, and increased frequency of ovulation."
Read more about buckwheat: http://www.brighthub.com/health/diet...#ixzz1CrjlzhTB