1. Introduction

A diagnosis of type 2 diabetes in the family can feel personal. You may have watched a parent manage blood glucose checks, medication or health complications. Or perhaps a sibling has recently been diagnosed, and now you are wondering: “Is this going to happen to me too?”

The honest answer is that a family history matters—but it is not a prediction of your destiny.

Family history is one part of your risk profile. It cannot be changed, but many important risk factors can be influenced over time. That means knowledge can become a practical advantage: it gives you an earlier opportunity to take action, seek appropriate screening and build habits that support your long-term health.

In Australia, almost 1.3 million people are living with type 2 diabetes, which represents around 85–90% of all diabetes cases. Diabetes Australia also reports that almost 60% of type 2 diabetes cases can be delayed or prevented through changes to diet and lifestyle (Diabetes Australia).

That is an important message: genetics may load the risk, but everyday health choices still help shape the outcome.

2. Why does diabetes run in families?

Type 2 diabetes is not caused by one single factor. It generally develops when the body becomes less responsive to insulin, often called insulin resistance, and/or the pancreas cannot make enough insulin to keep blood glucose in a healthy range.

When type 2 diabetes runs in a family, the increased risk may come from a combination of:

• Inherited genes that affect insulin production or how the body responds to insulin
• Shared household habits, including food patterns, activity levels and sitting time
• Shared environments, such as work pressures, access to healthy food, sleep routines and stress
• Age and life stage
• Cultural background and ethnicity
• Other health factors, including high blood pressure or a history of gestational diabetes

The Australian Institute of Health and Welfare (AIHW) lists family history as a non-modifiable risk factor for type 2 diabetes. Importantly, the AIHW also notes that family risk may reflect both inherited genes and shared environments or health behaviours.

So, it is not as simple as saying “it is in my genes” or “it is only lifestyle”. For most people, it is a combination.

3. A higher risk is not a guaranteed diagnosis

It is understandable to feel worried when diabetes has affected people close to you. However, thinking in terms of risk rather than certainty is more accurate and more helpful.

A family history means you may benefit from:

• Earlier conversations with your GP
• More regular blood glucose screening
• Paying closer attention to other risk factors
• Creating habits that are realistic enough to maintain over years- not just weeks.

You do not need to be “perfect”. You do not need to follow an extreme diet, eliminate every carbohydrate or train for hours each day.

The goal is to improve the factors you can influence, step by step.

4. Who should pay closer attention to their type 2 diabetes risk?

A family history is one risk factor. It becomes more important when it sits alongside others.

Consider discussing screening with your GP if you have a family history of type 2 diabetes and one or more of the following apply:

• You are aged 40 years or over
• You have high blood pressure
• You have high cholesterol
• You are less physically active than you would like to be
• You spend long periods sitting for work or at home
• You have previously had gestational diabetes
• You have polyendocrine metabolic ovarian syndrome (PMOS)
• You have had elevated blood glucose before
• You carry weight around the waist
• You smoke
• You are from an Aboriginal or Torres Strait Islander, Pacific Islander, South Asian, East Asian, Middle Eastern, North African or Southern European background

Diabetes Australia notes that Aboriginal and Torres Strait Islander Australians are three times more likely to develop type 2 diabetes than non-Indigenous Australians (Diabetes Australia).

This is not about labelling people or creating fear. It is about recognising when prevention and early checks could be particularly valuable.

 

5. Start with a risk check- not assumptions

If diabetes runs in your family, avoid guessing about your health based on how you feel.

Type 2 diabetes can develop gradually, and some people have no obvious symptoms in its early stages. That is why routine checks matter.

A practical first step: complete the AUSDRISK assessment

The Australian Type 2 Diabetes Risk Assessment Tool (AUSDRISK) is designed to estimate your risk of developing type 2 diabetes within the next five years.

It considers factors such as:

• Age
• Sex
• Family history
• Waist measurement
• Physical activity
• Diet
• Blood pressure history
• Previous high blood glucose readings

You can ask your GP or healthcare professional about completing an AUSDRISK assessment and whether blood tests are appropriate for you. The tool is particularly relevant for Australians aged 40 and over and may help identify when earlier support is useful (Australian Type 2 Diabetes Risk Assessment Tool).

6. What blood tests might your GP discuss?

Your GP may recommend tests such as:

• Fasting blood glucose
• HbA1c, which reflects average blood glucose levels over roughly the previous two to three months
• An oral glucose tolerance test in some circumstances

Only a qualified healthcare professional can diagnose diabetes or prediabetes. If you are concerned about symptoms or your risk, speak with your GP rather than relying on online information alone.

7. Five evidence-informed ways to reduce your type 2 diabetes risk

You cannot change your family history. But you can build protective habits around the parts of risk that are within your influence.

1. Move regularly- and make it achievable

Physical activity helps your muscles use glucose for energy and supports insulin sensitivity. It can also improve mood, sleep, cardiovascular fitness and strength.

The key is not finding the “best” exercise plan. It is finding a movement routine you can repeat.

Try this weekly movement framework

• Start with a 10–20 minute walk most days
• Break up long sitting periods with short movement breaks
• Add strength-focused exercise two or more times per week if suitable for you
• Choose activities you genuinely enjoy: walking, swimming, cycling, Pilates, strength training, gardening, dancing or group classes
• Increase gradually rather than doing too much too soon

If starting feels difficult, make the first version extremely small:

• Put on your shoes and walk for five minutes
• Take a lap around the block after dinner
• Stand up and move for two minutes between meetings
• Try one beginner exercise class with a friend

For more practical guidance, read Sure Health Management’s article on the vital role of physical activity in health.

For a tailored plan based on your current health, ability and goals, explore the Health Optimisation Program.

2. Build meals around balance, not restriction

There is no single “diabetes prevention diet” that suits every person. However, consistent food habits can support blood glucose management, energy levels, heart health and a healthy weight range.

A useful approach is to focus on what you can add, rather than simply what you must remove.

Use the balanced-plate guide

At most main meals, aim for:

• ½ plate: colourful non- starchy vegetables or salad
• ¼ plate: quality protein, such as fish, eggs, chicken, tofu, legumes, yoghurt or lean meat
• ¼ plate: high-fibre carbohydrates, such as wholegrain bread, brown rice, oats, quinoa, beans, lentils or starchy vegetables
• Add healthy fats in sensible portions, such as olive oil, avocado, nuts or seeds

Three simple nutrition changes to try this week

1. Replace one sugary drink each day with water, sparkling water or unsweetened tea.
2. Include vegetables at lunch and dinner.
3. Swap one refined snack for a higher-fibre option, such as fruit with yoghurt, nuts, wholegrain crackers or hummus and vegetable sticks.

You do not have to avoid carbohydrates completely. The quality, amount, fibre content and overall meal balance matter.

For further reading, visit Unlocking the Power of Nutrition.

3. Protect muscle with strength-based exercise

Muscle is metabolically active tissue. When you build and maintain strength your body can become more effective at using glucose.

You do not need to become a bodybuilder. A simple beginner routine may include:

• Sit-to-stands from a chair
• Wall push-ups
• Bodyweight squats to a comfortable depth
• Resistance-band rows
• Step-ups
• Carrying shopping bags safely
• Supervised gym-based resistance training

Aim for two sessions per week to begin with, allowing rest between sessions.

If you have pain, injury concerns, chronic health conditions or have not exercised for some time, a tailored plan may be safer and more sustainable. Sure Health Management’s Exercise Physiology service can help create an appropriate exercise plan around your individual needs.

4. Take waist health seriously- without shame

Weight is not the only measure of health, and people deserve respectful, personalised care at every size. However, excess fat around the abdominal area can be associated with a higher risk of insulin resistance and type 2 diabetes.

Rather than chasing rapid weight loss, focus on behaviours that support health over time:

• Regular meals with enough protein and fibre
• More everyday movement
• Strength training
• Better sleep routines
• Reduced alcohol intake if relevant
• Stress-management strategies
• Support from qualified health professionals

Even modest, sustainable changes can be meaningful. The best plan is the one you can continue, not the most restrictive plan you can endure for two weeks.

5. Improve the routines around sleep and stress

Sleep and stress are often overlooked in diabetes prevention conversations, yet both can make healthy habits harder to maintain.

When you are exhausted or under pressure it can be more difficult to exercise, prepare meals, make considered food choices or attend appointments.

Create a simple “health anchor” routine

Choose one time in your day and attach a healthy action to it:

• After breakfast: take a 10-minute walk
• After work: change into walking clothes before sitting on the couch
• After dinner: prepare tomorrow’s lunch
• Before bed: put your phone away 30 minutes earlier
• During your lunch break: walk outside for five minutes

For support in making daily routines feel more manageable, read Mastering Lifestyle Management.

8. A realistic 7-day diabetes-risk action plan

If this topic feels overwhelming, do not try to change everything at once. Start here.

Day 1: Know your family history

Write down which relatives have had diabetes, what type they had if known, and roughly when they were diagnosed.

Day 2: Book or plan your health check

Speak with your GP about your family history and whether screening is appropriate.

Day 3: Add a short walk

Take a 10-minute walk after one meal.

Day 4: Improve one meal

Add vegetables, a quality protein source and a high-fibre carbohydrate to one meal.

Day 5: Break up sitting

Set three reminders during the day to stand, stretch or walk for two minutes.

Day 6: Try one strength movement

Complete one set of sit-to-stands, wall push-ups or another suitable beginner exercise.

Day 7: Choose your next small habit

Ask yourself: What is one action I can repeat next week?

Consistency is more valuable than intensity. Small actions become more powerful when repeated.

9. When the Life! Program may be helpful

If you are at risk of type 2 diabetes, heart disease or stroke, structured support can make behaviour change feel less isolating.

Sure Health Management provides the Victorian Government-funded Life! Program, which is designed to support eligible people with areas such as:

• Healthy eating
• Physical activity
• Weight management
• Stress management
• Sleep
• Creating sustainable lifestyle habits

If you are concerned about your family history of diabetes it may be worth checking whether the program is suitable for you.

10. Symptoms you should not ignore

Type 2 diabetes may not cause noticeable symptoms initially. However, arrange a GP appointment promptly if you experience symptoms such as:

• Increased thirst
• Frequent urination
• Unexplained tiredness
• Blurred vision
• Slow-healing cuts or infections
• Recurrent infections
• Unexplained weight loss

These symptoms can have several possible causes, so do not self-diagnose. A GP can assess your situation and organise appropriate tests.

11. Family history can be a prompt for action- not fear

A family history of type 2 diabetes is valuable health information. It gives you a reason to pay attention sooner, not a reason to assume that a diagnosis is inevitable.

The most important message is simple:

• Know your risk
• Get checked when appropriate
• Move regularly
• Build balanced meals
• Strengthen your body
• Create routines you can maintain
• Seek qualified support early

At Sure Health Management, the focus is on personalised support that helps people move better, feel better and build healthier lifestyles over time. If you would like guidance with exercise, nutrition, lifestyle habits or diabetes-risk reduction, you can book an appointment.

12. FAQs

Does having a parent with diabetes mean I will get diabetes?

No. Having a parent with type 2 diabetes can increase your risk, but it does not guarantee that you will develop it. Your overall risk is influenced by family history, age, lifestyle, body composition, activity levels and other health factors.

Can type 2 diabetes be prevented if it runs in the family?

Not every case can be prevented, but type 2 diabetes can often be delayed or prevented through sustainable changes to diet, physical activity and other lifestyle factors. Diabetes Australia estimates that almost 60% of type 2 diabetes cases can be delayed or prevented with lifestyle changes.

At what age should I get checked for type 2 diabetes?

If you have a family history of diabetes, discuss your individual screening needs with your GP. The AUSDRISK tool is designed to assess five-year type 2 diabetes risk, particularly for Australians aged 40 years and over.

What is the best exercise to lower type 2 diabetes risk?

The best exercise is one you can do consistently. A combination of regular walking or aerobic activity reduced sitting time and strength-based exercise is often useful. If you have injuries, pain or health conditions, seek individual advice before starting.

Is prediabetes the same as diabetes?

No. Prediabetes means blood glucose levels are higher than normal but not yet in the diabetes range. It is a strong warning sign and important opportunity to work with your healthcare team on lifestyle changes and ongoing monitoring.