Boreal Dog Functional LID All Breed Herring 10 kgBoreal Dog Functional LID All Breed Herring 10 kg Canadian Brand. Boral Functional Limited Ingredients Herring Diet is a grain free food using herring (from Canada) as a single meat protein. This LID diet is hypoallergenic, designed to help sensitive stomachs, and is great for skin and coat troubles. Boral LID helps avoid sensitivities issues with easy digestion, having 1 meat protein, zero chicken, and using ingredients like tapioca and coconut oil