12 Diabetes Prevention Tips Backed by Medical Experts

6. Know your numbers—monitor glucose and risk markers

Understanding your blood sugar patterns and risk markers gives you data to act on. Medical guidance commonly uses fasting glucose, A1C, and sometimes continuous glucose monitoring for people with high risk or prediabetes. General target ranges used for monitoring include fasting and post-meal patterns; some resources note that many people aim to see glucose typically between about 70 and 180 mg/dL, though ideal targets will vary by age and health status. If you’re at elevated risk, regular checks and periodic A1C tests help track progress. For those already tracking at home, sharing trends with your clinician allows a tailored plan. Home monitoring can also show how specific foods or activities impact your levels, guiding adjustments to meals and routines. Discuss with your provider how often to test: many clinics recommend more frequent review for people with prediabetes or other risk factors, sometimes every 3–6 months. Don’t interpret one reading in isolation—look at patterns over time. Knowing the numbers turns prevention from guesswork into measurable action.