So many things other than foods affect those glucose readings, and so finding the perfect basal dose can be difficult when stress, allergies, hormone swings, activity
levels, and occasional viruses cause
glucose levels to rise and fall at unpredictable times. I personally find that knowing how all of these outside factors affect my body is absolutely necessary in order to be able to manage the glucose levels and know when to increase or when to decrease the basal Lantus dose.