Lesson 1 of 5 · Managing Blood Sugar and Type 2 Diabetes · about 7 minutes
Key takeaways
- Insulin is the hormone that moves sugar (glucose) from your blood into your cells for energy.
- In type 2 diabetes, the body becomes resistant to insulin and cannot keep blood sugar in a healthy range.
- HbA1c shows your average blood sugar over about two to three months.
- Food, activity, sleep, weight and medicines all work together — small changes can make a big difference.
Type 2 diabetes is very common in the UAE, the wider Gulf and South Asia. If you have recently been told you have diabetes or prediabetes, you may feel worried or confused. That is completely understandable.
This first lesson explains what is actually happening in your body, what your test results mean, and why everyday choices matter so much. Understanding the basics will make the rest of the course much easier to put into practice.
How blood sugar normally works
When you eat foods containing carbohydrate — such as rice, roti, bread, fruit, dates or sweets — your body breaks them down into glucose. Glucose enters your bloodstream and your blood sugar rises.
In response, your pancreas releases insulin. Insulin works like a key, opening your cells so glucose can move in and be used for energy. Any extra glucose is stored in your liver and muscles. As a result, blood sugar comes back down within a few hours.
What goes wrong in type 2 diabetes
Insulin resistance
In type 2 diabetes, the cells stop responding well to insulin. This is called insulin resistance. The pancreas tries to make more insulin to compensate, but over time it cannot keep up, so blood sugar stays higher than it should.
What increases the risk?
- Family history of type 2 diabetes.
- South Asian, Middle Eastern or African heritage.
- Carrying extra weight, especially around the waist.
- Low physical activity and long periods of sitting.
- A history of gestational diabetes or PCOS.
- Poor sleep and ongoing stress.
Some of these you cannot change, but many you can. That is the hopeful message of this course.
Why it matters
Over time, high blood sugar can damage blood vessels and nerves. This raises the risk of heart disease, stroke, and problems with the eyes, kidneys and feet. The good news is that keeping your blood sugar, blood pressure and cholesterol in a healthy range greatly lowers these risks.
Understanding your numbers
Blood sugar can be measured in mmol/L (used in the UK) or mg/dL (common in the UAE and Pakistan). HbA1c can be shown in mmol/mol or as a percentage.
| Test | Normal | Prediabetes | Diabetes |
|---|---|---|---|
| HbA1c | Below 5.7% | 5.7–6.4% | 6.5% (48 mmol/mol) or higher |
| Fasting blood glucose | Below 100 mg/dL (5.6 mmol/L) | 100–125 mg/dL (5.6–6.9 mmol/L) | 126 mg/dL (7.0 mmol/L) or higher |
These are the diagnostic ranges used in American Diabetes Association guidance; UK services use slightly different cut-offs for prediabetes. A diagnosis is always made by your doctor, usually with repeat testing.
Your personal target
Many adults with diabetes aim for an HbA1c below 7% (53 mmol/mol), but targets are personal. Your doctor may set a different goal depending on your age, other health conditions and risk of low blood sugar. Ask what your target is and write it down.
What you can influence
Diabetes management rests on a few pillars that support each other:
- Food: the type and amount of carbohydrate, plus balanced meals with protein, vegetables and healthy fats.
- Movement: active muscles take up glucose, even without much insulin.
- Weight: for people carrying extra weight, losing some can greatly improve blood sugar. For some, significant weight loss can even put type 2 diabetes into remission — discuss this with your doctor.
- Sleep and stress: poor sleep and stress hormones push blood sugar up.
- Medicines: many people need medicine, and that is not a failure. Take them as prescribed.
Try this this week
- Find your latest HbA1c result and ask your doctor what your personal target is.
- Write down your main carbohydrate foods on a typical day.
- Take a 10-minute walk after your largest meal on at least three days.
Quick check
1. What does insulin do?
It helps glucose move from the blood into your cells to be used for energy.
2. What does HbA1c measure?
Your average blood sugar over roughly the past two to three months.
3. Is needing diabetes medicine a sign of failure?
No — many people need medicine alongside lifestyle changes, and it protects your health.
Next lesson: Lesson 2 — Carbohydrates, Glycaemic Index and Portion Control
Want a personal plan to bring your blood sugar into range? Explore our weight and diabetes management service or message Dr. Rida Saeed on WhatsApp +971 54 448 6145 to book an online consultation.
This lesson is for general education only and is not a substitute for medical advice. Please speak to your doctor or a qualified health professional about your individual needs.