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Michael O'Sullivan, MSc

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Windsor, VIC
Michael O'Sullivan, MSc

Dietitian & Founder of GlucoseScan. Interests in insulin resistance, nutritional science and how nutrition and lifestyle can prevent and treat disease.

09/11/2026

Best fruit for blood sugars.

05/11/2026

Before and after meals to control blood sugars.

29/10/2026

Why blood sugar spikes matter.

28/10/2026

Insulin does more than just control blood sugars.

24/10/2026

Blood sugars and energy crashes.

23/10/2026

Blood sugars and healthy foods.

23/10/2026

Weight loss and insulin resistance.

21/10/2026

Cinnamon and insulin resistance.

12/09/2026

🍞 1. Carbs Become Glucose
Carbohydrates — including starches and sugars — are digested and absorbed largely as glucose, which enters your bloodstream.

💉 2. Insulin Moves Glucose Into Cells
Insulin helps your muscle, fat and other cells take up and use glucose, helping bring blood glucose back down.

⚠️ 3. Insulin Resistance Changes This
In type 2 diabetes, cells don’t respond to insulin as effectively, so more glucose can remain in the bloodstream.

📈 4. More Carbs = More Glucose to Manage
The amount of digestible carbohydrate in a meal is a major factor influencing the rise in blood glucose after eating.

🥗 5. Not All Carb Meals Act the Same
Fibre, protein, fat, food processing and portion size can all change how quickly and how much blood glucose rises.

💡 The Bottom Line
Carbs aren’t “bad” — but with diabetes, the amount and type of carbohydrate you eat can make a big difference to blood glucose control.

📲 Want to know how your meal may affect your blood sugar?
GlucoseScan helps you scan your food and see its predicted glucose impact before you eat. Visit GlucoseScan .com website

11/09/2026

🩸 1. Type 2 Diabetes
Insulin resistance means glucose isn’t being used efficiently by your cells, causing glucose to build up in the blood. Over time, this can progress to type 2 diabetes.

🥚 2. PCOS/PMOS
Insulin resistance causes higher insulin levels, which can increase androgen production and contribute to the hormonal changes seen in PCOS.

🫀 3. Fatty Liver
Insulin resistance promotes the conversion and storage of excess energy as fat in the liver, contributing to fatty liver disease.

🧠 4. Dementia
Insulin resistance is associated with impaired brain glucose metabolism and a higher risk of cognitive decline and dementia.

⚖️ 5. Obesity
Insulin resistance can lead to higher insulin levels, particularly after eating carbohydrates. Insulin suppresses fat breakdown, which can contribute to increased fat storage and make weight loss more difficult.

📲 Want to make better food choices for your blood sugar?
GlucoseScan helps you scan foods and see their predicted impact on your blood glucose before you eat. Visit GlucoseScan.com.

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Windsor, VIC

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