If your blood glucose is high before a meal, calculate a dose of rapid-acting insulin to cover the high, then wait until that insulin begins to lower your blood glucose before eating. If you can’t delay a meal, check your blood glucose an hour before you eat and take a corrective dose then. Say what? There are so many steps left out of this answer that it verges on nonsensical.
Sign up for our NewsletterEnter your email address to receive our weekly newsletter.