Formal recommendations on how to reverse type 2 diabetes in clinical practice must await further studies. In the meantime, it will be helpful for all individuals with newly diagnosed type 2 diabetes to know that they have a metabolic syndrome that is reversible. They should know that if it is not reversed, the consequences for future health and cost of life insurance are dire, although these serious adverse effects must be balanced against the difficulties and privations associated with a substantial and sustained change in eating patterns. For many people, this may prove to be too high a price to pay, but for those who are strongly motivated to escape from type 2 diabetes, the new understanding gives clear direction. Physicians need to accept that long-term weight loss is achievable for a worthwhile proportion of patients (96). In the United States, diabetes costs $174 billion annually (97), and in the United Kingdom, it accounts for 10% of National Health Service expenditure. Even if only a small proportion of patients with type 2 diabetes return to normal glucose control, the savings in disease burden and economic cost will be enormous.
At the start of the study, all of the patients had been taking two oral diabetes drugs for at least six months. But they still had poorly controlled diabetes based on blood tests showing so-called hemoglobin A1c levels, which reflect average blood sugar levels over about three months. Readings above 6.5 signal diabetes, and everyone in the study had readings of at least 7.
The idea of “reversing” is describing the well managed type 2 diabetes that can be maintained without the outcome of complications (eye disease, kidney disease, etc.). And it is totally possible to have type 2 (or type 1 diabetes for that matter) and have no complications – however, this takes careful management and is largely driven by the patient and their access to quality healthcare.
Normally, blood glucose levels are tightly controlled by insulin, a hormone produced by the pancreas. Insulin lowers the blood glucose level. When the blood glucose elevates (for example, after eating food), insulin is released from the pancreas. This release of insulin promotes the uptake of glucose into body cells. In patients with diabetes, the absence of insufficient production of or lack of response to insulin causes hyperglycemia. Diabetes is a chronic medical condition, meaning that although it can be controlled, it lasts a lifetime.