I have not yet started home glucose testing, but I will. I have switched all 3 cats to Friskies wet food (low carb pate) with Purina DM crunchies (prescribed by vet) for snacking. I am now reading Purina DM is not the best choice for dry food snacking. Now looking into Tiki, Orijen, Dr. Elsey's, Wysong and Evo. For now, they will finish their bag of Purina DM. For glucose monitor, seems that Relion from Walmart needs the least amount of blood sample. Thanks! I appreciate you all!