PRAIRIE NATURALS - PRARIE NATURALS Ketostrips - 100 Each - NPN: 00000000 -- When on a ketogenic diet, the goal is to achieve ketosis the metabolic state where the body burns fat instead of glucose for fuel. While in ketosis, your body also makes an abundance of ketones. Ketone test strips are thin paper strips that detect ketones in urine. The colour chart provided helps you estimate what level of ketosis youre inthe darker the color, the higher the level of ketosis.