When someone is told their blood sugar is high, the advice that usually follows is straightforward: cut out sugar. No more teh tarik. Less kuih. Drink plain water instead.
It is well-intentioned advice. For many people, though, it is simply not enough on its own.
Across the country, people have reduced their sugar intake and followed the guidance they were given and still find their glucose levels difficult to control. This is rarely a matter of effort. It is more often a sign that the advice itself is incomplete.
Sugar Is Only Part of the Problem
Sugar is one type of carbohydrate. In terms of blood sugar, however, all carbohydrates matter, not just the ones that taste sweet.
White rice, roti canai, bihun, white bread, and kuih-muih are the everyday staples of local meals. They are also high on the glycaemic index (GI), a scale that measures how quickly a food raises glucose levels in the body. Foods with a high GI are broken down rapidly, causing a faster rise in glucose. A standard plate of white rice can push glucose up just as quickly as a can of soft drink. Swapping out sugary drinks while keeping the rest of the diet unchanged often produces very little change.
As Prof. Emeritus Dr Chan Siew Pheng, endocrinologist at SJMC, put it in 2024: “Diabetes is not just about sugary drinks. Taking too many calories, whether in the form of sugar or carbs, increases the risk. Unfortunately, we are brought up to enjoy the sweetness in our food.”
What Does the Data Say About Diet and Diabetes?
Research using data from the National Health and Morbidity Survey (NHMS) 2023, published by the Ministry of Health Malaysia, found that close to 40% of the country’s diabetes burden is linked to poor dietary patterns overall, not sugar alone.
The same dataset and supporting studies paint a fuller picture. More than 54% of adults in the country are currently overweight or obese. Dietary quality scores are rated poor across most population groups, based on the 2024 National Lipid Study analysis. And despite the MOH’s nutrition therapy programme for patients managing elevated glucose, only 16.4% follow through with dietary recommendations on a consistent basis.
That last point is worth examining carefully. The low adherence rate is not a reflection of how much people care about their health. It is a sign that generic dietary advice, even when it comes from a qualified professional, rarely fits how people actually eat day to day.
Why Generic Meal Plans Do Not Work
Food in this country is tied to culture, community, and daily routine. It is a shared experience, and any nutrition approach that treats it purely as a clinical matter is unlikely to last.
Beyond that, food affects each person differently. Two people can eat the same plate of nasi campur and have very different blood sugar readings afterwards. This kind of individual variation in glucose response is well-documented in the research, which is why a printed diet sheet from a clinic is rarely the right tool for long-term change.
The MOH’s Suku-Suku Separuh framework (which translates roughly as “quarters and a half” and divides the plate into half vegetables and fruit, a quarter protein, and a quarter carbohydrates) is a useful starting point for the general population. For someone managing diabetes or prediabetes (blood sugar that is elevated but has not yet reached the threshold for a full diagnosis), it needs to go further. The framework tells you how much carbohydrate to put on the plate, but not which carbohydrate, what portion fits your specific body, or how your glucose responds to brown rice compared to white rice. Those are questions that require more than a general guideline.
Does Personalised Nutrition Actually Make a Difference?
Yes, and the evidence is specific.
A study published in the Nutrients journal (2023) focused on overweight adults in the Klang Valley and combined continuous glucose monitoring with personalised low-GI nutrition coaching. Low-GI foods are those that raise blood sugar more gradually, helping to avoid the sharp spikes that strain the body over time. Participants in the personalised group showed greater improvements in glucose readings, HbA1c (a blood test that reflects average glucose levels over two to three months), body weight, and LDL cholesterol (often called bad cholesterol because it raises the risk of heart disease) compared to those who received standard dietary advice alone.
The difference was not only in the advice given. It was visible. When people could see exactly how a specific meal affected their glucose in real time, the motivation to make small, lasting adjustments followed naturally.
Sustained change also has to work within a person’s food culture. Malay, Chinese, and Indian communities each have distinct cooking traditions, festival foods, and eating patterns. A nutrition plan that does not account for this will be set aside. One that is built around it has a genuine chance of working.
How Seraya Health Approaches Nutrition
At Seraya Health, we do not begin with a list of foods to avoid. We begin with your glucose data.
Using continuous monitoring, our physicians can see exactly how your blood sugar responds to the meals you actually eat. From there, we build a nutrition and supplement plan around those patterns, alongside your medical history and food preferences, rather than applying a standard template to everyone.
If you would like to talk through your numbers with a physician before committing to a plan, you can consult a doctor online through our telehealth platform. We review your data together in a single session and give you a clear picture of what is worth changing and what is not.
Our aim is not to take away the food you enjoy. It is to help you understand it well enough to make informed choices that fit your life.
Understanding Your Diet Is a Practical First Step
Managing blood sugar through food is not about eating less or avoiding everything you grew up with. It is about understanding how specific foods affect your body and having support that is built around how you actually eat.
Whether your glucose levels were flagged at a recent check-up or you have been working to bring them down for years without reaching your targets, a personalised nutrition approach gives you a more complete picture of what is driving the numbers.
A health assessment is a straightforward place to start. Find out where you stand, then decide what is worth changing.
Frequently Asked Questions
Q1. Is white rice really as bad as sugary drinks for blood sugar?
In terms of how quickly it raises glucose, yes. White rice ranks high on the glycaemic index and causes a glucose rise comparable to soft drinks.
Q2. What is the Suku-Suku Separuh method?
An MOH-recommended plate division: half vegetables and fruit, a quarter protein, a quarter carbohydrates. Useful as a starting point, but needs personalising for diabetes management.
Q3. Does Seraya Health provide meal plans?
Yes. Meal plan consultations are part of our care packages, built around your CGM data and food preferences.
Key Takeaways
- All carbohydrates affect blood sugar, not just sugar
- 40% of the country’s diabetes burden is linked to overall diet quality
- Personalised nutrition combined with glucose monitoring produces better outcomes than generic advice
- Seraya Health builds every nutrition plan around your actual glucose data
Book your complimentary health assessment at serayahealth.com.