Type 1 diabetes normally manifests itself quite suddenly, and patients have abrupt-onset symptoms with ketoacidosis, but type 2 diabetes is more insidious in onset. Symptoms often go unnoticed, and people can have type 2 diabetes for many years without realising it (1).
Approximately a quarter of people with type 2 diabetes do not know they have it (2). Once diagnosed with type 2 diabetes, as many as half of our precious beta cells may already be malfunctioning due to ingestion of excessive amounts of high glycemic index foods (see Glycemic Index below), poor nutrition and being overweight or obese, and inactive (3).
— May Meleigy
- International Diabetes Federation. Types of diabetes. http://www.idf.org/types-diabetes
- The Association of Public Health Observatories (APHO) Diabetes Prevalence Model: estimates of total diabetes prevalence for England, 2010-2030. Diabet Med. 2011 May; 28(5): 575-82. doi: 10.1111/j.1464-5491.2010.03216.x.
- Abdullah A, Peeters A, de Courten M, et al. The magnitude of association between overweight and obesity and the risk of diabetes: a meta-analysis of prospective cohort studies. Diabetes Research & Clinical Practice 2010;89 (3):309-19.