A Practical Guide to Managing Type 2 Diabetes

Type 2 diabetes is the most common form of diabetes in Australia. According to Diabetes Australia, more than 1.3 million Australians have been diagnosed with type 2 diabetes, and it is estimated that a significant number more remain undiagnosed. Understanding the condition, its management options and the role of your healthcare team is the first step towards living well with a type 2 diagnosis.

What Is Type 2 Diabetes?

Type 2 diabetes is a chronic condition in which the body either does not produce enough insulin, does not use insulin effectively, or both. Insulin is a hormone produced by the pancreas that allows glucose (sugar) from food to enter cells and be used for energy. When this system is disrupted, glucose builds up in the bloodstream instead of being absorbed — leading to elevated blood glucose levels.

Unlike type 1 diabetes, which is an autoimmune condition where the immune system destroys insulin-producing cells, type 2 develops gradually over time and is strongly influenced by lifestyle factors, genetics and age. It is not caused by eating too much sugar, though diet does play a role in its development and management.

Symptoms and Diagnosis

Many people with type 2 diabetes have no symptoms in the early stages, which is why it is often found through routine blood tests. When symptoms do occur, they can include:

• Increased thirst and frequent urination
• Fatigue and lack of energy
• Blurred vision
• Slow-healing wounds or frequent infections
• Tingling or numbness in the hands or feet
• Unexpected weight loss (less common in type 2 than type 1)

In Australia, type 2 diabetes is diagnosed using a blood test. The most commonly used diagnostic criteria are:

The Role of Lifestyle in Type 2 Management

Lifestyle changes are the foundation of type 2 diabetes management, recommended by all major Australian guidelines as the first and most important intervention. In some cases — particularly when the condition is caught early — significant lifestyle changes can lead to improved blood glucose levels, sometimes to the point where medication can be reduced or deferred. This is sometimes called "remission," though it is important to understand that type 2 diabetes is a chronic condition that requires ongoing attention.

Diet

There is no single "diabetes diet," but most evidence-based approaches for type 2 diabetes share some common principles:

• Reducing total carbohydrate intake, particularly refined carbohydrates and sugary foods and drinks
• Eating more non-starchy vegetables, lean protein and healthy fats
• Choosing lower glycaemic index (GI) foods where possible
• Reducing portion sizes to support a healthy weight
• Limiting alcohol, which can affect blood glucose in unpredictable ways

Working with an Accredited Practising Dietitian (APD) who has experience in diabetes is strongly recommended. A dietitian can help you create a sustainable eating plan that fits your food preferences, cultural background and health goals. Many Australians with type 2 diabetes can access dietitian consultations through a GP Management Plan (GPMP) with Medicare rebates.

Physical Activity

Regular physical activity improves insulin sensitivity — meaning the body uses insulin more effectively — and can directly lower blood glucose levels. Diabetes Australia recommends that adults with type 2 diabetes aim for:

• At least 150 minutes of moderate-intensity aerobic activity per week (e.g. brisk walking, swimming, cycling)
• Two or more sessions of resistance exercise per week (e.g. weights, resistance bands)
• Breaking up prolonged sitting — even short activity breaks throughout the day are beneficial

If you are new to exercise or have other health conditions, speak with your doctor before starting a new exercise programme. An exercise physiologist can design a safe, personalised exercise plan — also often accessible through a GPMP.

Weight Management

For people who are overweight, even modest weight loss — as little as 5–10% of body weight — is associated with meaningful improvements in blood glucose, blood pressure and cholesterol. Weight loss does not need to be dramatic to be beneficial.

Medications for Type 2 Diabetes

Many people with type 2 diabetes will require medication at some point, particularly as the condition progresses over time. Needing medication is not a sign of failure — it reflects the natural progression of type 2 diabetes in many people, regardless of how well they manage their lifestyle.

Common medication classes used in Australia include:

Regular Health Checks

Type 2 diabetes is a systemic condition that can affect multiple organs over time. Regular monitoring is essential to detect any complications early, when they are most treatable. The following checks are recommended annually (or more frequently if needed):

• HbA1c blood test — to assess average blood glucose control (every 3–6 months)
• Blood pressure check — high blood pressure is common with type 2 and increases complication risk
• Kidney function tests — eGFR and urine albumin-to-creatinine ratio
• Cholesterol and lipid profile
• Eye examination (retinal screening) — to check for diabetic retinopathy
• Foot examination — to check circulation and nerve function
• Dental check — gum disease is more common with diabetes and can affect blood glucose

Your Healthcare Team

Managing type 2 diabetes well typically involves a team of health professionals. In Australia, this may include:

• GP (General Practitioner) — the primary point of contact for most people with type 2 diabetes
• Endocrinologist — a specialist in hormone and metabolic conditions, for more complex cases
• Credentialled Diabetes Educator (CDE) — provides education and practical support for self-management
• Accredited Practising Dietitian (APD) — for nutrition planning and meal management
• Exercise physiologist — for safe, tailored physical activity guidance
• Ophthalmologist or optometrist — for regular eye checks
• Podiatrist — for foot care and monitoring

Through a GP Management Plan (GPMP), many Australians with chronic conditions including type 2 diabetes are eligible for Medicare rebates on allied health consultations. Ask your GP about whether a GPMP and Team Care Arrangement (TCA) is appropriate for you.