There are three main types of Diabetes: Type 1, Type 2 and Gestational Diabetes (GDM).
When you have Diabetes, your body can't properly use the energy from the food you eat. This problem is closely tied to how your body makes and uses insulin. Insulin is a substance made in your pancreas (an organ in your body) that helps to keep your blood sugar in the normal range.
- Type 1 Diabetes: Your body makes little or no insulin. People with this type of Diabetes must take insulin shots to live. That's it is sometimes referred to as "Insulin Dependent Diabetes." Less than one in ten people with Diabetes have Type 1. Although it usually begins when people are young, it may occur at any age.
- Type 2 Diabetes: Your body makes insulin but your cells cannot use it well. This is called insulin resistance. Also, your ability to make insulin gradually decreases as time goes by, due to insulin deficiency. Type 2 used to be called "non-insulin dependent Diabetes." People who have it can be treated with proper meal planning, exercise, and medications. Type 2 Diabetes is the most common form of Diabetes and accounts for at least nine out of ten cases. Although it can occur in younger people, it most often begins when people are over 40 years of age.
- Gestational Diabetes (GDM): Gestational diabetes is defined as glucose intolerance that begins or is first detected during pregnancy. Gestational diabetes develops only during pregnancy. Though it usually disappears after delivery, the mother & the fetus is at increased risk of various complications during pregnancy & also getting type 2 diabetes later in life.
Standards of Medical Care in Diabetes2015. DIABETES Care 2015;3 (Suppl. 1)
Harrison’s Principles of Internal Medicine, edition 18, chapters 35, 94, 218, 21, 344
ISPAD Clinical Practice Consensus Guidelines 2014
Uptodate: Overview of medical care in adults with diabetes mellitus Author David K McCulloch, MD, Mar 18-2015
Uptodate: Glycemic control and vascular complication in type 2 diabetes mellitus, Author David K McCulloch, MD, Jun 2015