But is John “free of diabetes”? This is where the lines become blurred. Medically speaking, the term “cure” is usually associated with acute disease—a temporary medical condition, such as bacterial pneumonia, that can be cured with antibiotics. For diabetes, which is a chronic disease, it may be more accurate to use the term “remission” rather than cure. Particularly when considering the pathology associated with diabetes and the individual’s genetic predisposition, relapse is always possible. In a consensus statement issued by the ADA, the term remission is defined based on the following definitions:2

While the Khan study looked promising, supplementary studies have failed to consistently show beneficial effects. Vanschoonbeek gave 1.5g of cinnamon or placebo to postmenopausal women over 6 weeks. There was no effect reported on blood sugar or blood lipid levels. Baker’s 2008 meta-analysis identified 5 trials including the Khan and Vanschoonbeek studies and concluded the following:
Alternative medicine for diabetes is big business, because the public health burden of diabetes is massive, and growing. In 1985, the worldwide prevalence was 30 million people. In 2000, it was 150 million. By 2030, it could be 250 million. Why are more people being diagnosed with diabetes? Obesity, sedentary lifestyles, and an aging population. At its core, diabetes is a disease of sugar (glucose) management. Insulin, secreted by the pancreas, allows cells to use glucose. When the pancreas doesn’t produce insulin,  it’s called Type 1 diabetes. This is an autoimmune disease that strikes early in life, and was a death sentence until insulin was discovered.  When the pancreas can produce insulin, but the amount is insufficient, or when there’s a problem with the uptake of insulin into cells, it’s termed type 2 diabetes.  90% of all diabetes is type 2. Typically a disease of older adults, type 2 diabetes can potentially be treated without drugs of any kind, but success rates are low and medication is eventually advisable. There’s also gestational diabetes, a disease of pregnancy, and prediabetes, where blood sugars are elevated, and diabetes is an expected future diagnosis.
Because the initial symptoms (fatigue, weakness, frequent urination) are usually mild, about 30 percent of all people with diabetes do not realize that they have the disease. And that can have tragic consequences, because with early diagnosis and treatment, the chances of living a long and productive life are higher than if the disease creeps along until irreversible damage occurs.

Note that these medications used to treat type 2 diabetes are typically not used in pregnant or breastfeeding women. At present the only recommended way of controlling diabetes in women who are pregnant or breastfeeding is by diet, exercise, and insulin therapy. You should speak with your health-care professional if you are taking these medications, are considering becoming pregnant, or if you have become pregnant while taking these medications.