Diwali is a time for celebrations, family gatherings, traditional sweets and festive meals. From kaju katli and ladoos to chakli, chivda and late-night dinners, food is an important part of the celebrations. However, for people living with diabetes, changes in eating habits, meal timings and physical activity can make blood glucose management more challenging.
You may be enjoying your favourite sweets, attending family dinners or following a different daily routine during the festive season. But do you know whether your blood sugar levels are under control?
Regular diabetes monitoring can help you understand your glucose levels and identify potential health concerns. Certain blood tests also help assess how diabetes may be affecting other organs, including the kidneys and heart.
In this guide, we explain which blood tests people with diabetes may need, what each test measures and why regular monitoring matters during Diwali and throughout the year.
1. Why Is Diabetes Monitoring Important During Diwali?
Diabetes is a long-term condition in which the body cannot produce enough insulin or use it effectively, resulting in elevated blood glucose levels.
During Diwali, several lifestyle changes may influence glucose management:
- Eating sweets and carbohydrate-rich festive snacks.
- Having larger portions than usual.
- Eating meals later than normal.
- Skipping regular meals due to celebrations.
- Reducing physical activity.
- Experiencing changes in sleep patterns.
- Missing or changing medication timings.
These changes do not affect everyone in the same way. However, regular monitoring can help people understand their glucose patterns and discuss any concerns with their healthcare professionals.
Blood tests can provide information about average blood glucose, current glucose levels, cholesterol and kidney function. They help assess diabetes management and associated health risks.
2. HbA1c Test: Understand Your Average Blood Sugar
The HbA1c test, also known as the glycated haemoglobin test, is one of the most important tests for monitoring diabetes.
It measures the percentage of haemoglobin in red blood cells that has glucose attached to it. Since red blood cells circulate for approximately three months, HbA1c provides an estimate of average blood glucose over the previous two to three months.
Unlike a fasting blood glucose test, HbA1c generally does not require fasting.
Why Is the HbA1c Test Important?
- Helps assess long-term blood glucose management.
- Shows whether glucose levels have generally been within the desired range.
- Helps healthcare professionals evaluate the effectiveness of a diabetes management plan.
- Supports decisions about whether further assessment or treatment adjustments may be needed.
Understanding HbA1c Results
For diagnosing diabetes in non-pregnant adults, commonly used reference thresholds are:
| HbA1c result | Interpretation |
| Below 5.7% | Normal range |
| 5.7%–6.4% | Prediabetes range |
| 6.5% or higher | Diabetes range |
An abnormal result generally requires confirmation unless there is clear evidence of diabetes. These diagnostic thresholds are different from individual treatment targets for someone already diagnosed with diabetes.
For many non-pregnant adults with diabetes, an HbA1c target below 7% may be appropriate, but the target should be individualised by a healthcare professional.
Festive season tip: If you have diabetes, HbA1c can help you and your doctor understand your overall glucose management beyond individual festive meals. It does not show the effect of one particular Diwali sweet or meal.
3. Fasting Blood Sugar Test: What Is Your Glucose Level After Overnight Fasting?
A Fasting Blood Sugar (FBS) test, also called fasting plasma glucose (FPG), measures blood glucose after you have avoided food and calorie-containing drinks for at least eight hours.
It provides a measurement of glucose at a particular point in time.
Why Is Fasting Blood Sugar Testing Important?
This test can help:
- Screen for prediabetes and diabetes.
- Monitor fasting glucose levels in people with diabetes.
- Identify glucose levels that may be above the desired range.
- Support assessment alongside HbA1c and other investigations.
Understanding Fasting Blood Sugar Results
For diagnosing diabetes in non-pregnant adults:
| Fasting blood glucose | Interpretation |
| 99 mg/dL or below | Normal range |
| 100–125 mg/dL | Prediabetes range |
| 126 mg/dL or higher | Diabetes range |
An abnormal result usually needs confirmation with repeat or additional testing if there are no clear symptoms of diabetes.
Important: These are diagnostic thresholds, not personalised treatment targets for people who already have diabetes.
4. Postprandial Blood Sugar Test: What Happens After a Meal?
The Postprandial Blood Sugar (PPBS) test measures blood glucose after a meal, commonly two hours after the start of eating, according to the prescribed testing protocol.
It helps healthcare professionals understand how the body responds to food.
Why Is PPBS Important During Diwali?
Festive meals often include a combination of carbohydrates, fats and sweets. These foods can influence post-meal glucose levels.
A PPBS test may help:
- Assess glucose levels after eating.
- Identify elevated post-meal glucose.
- Support diabetes management alongside fasting glucose and HbA1c.
- Help healthcare professionals evaluate glucose control throughout the day.
The timing of the sample is important. Follow the laboratory's instructions about when the two-hour period begins and when the sample should be collected.
Remember: A PPBS result reflects glucose after a particular meal. It cannot independently tell you how your body responds to every Diwali sweet or snack.
5. Lipid Profile Test: Check Your Cholesterol and Heart Health
Diabetes can increase the risk of cardiovascular disease. Therefore, monitoring cholesterol and triglycerides is an important part of long-term diabetes care.
A Lipid Profile Test measures different types of fats in your blood.
What Does a Lipid Profile Include?
| Parameter | What it measures |
| Total Cholesterol | Overall cholesterol level |
| LDL Cholesterol | Often called bad cholesterol; elevated levels can contribute to plaque buildup in arteries |
| HDL Cholesterol | Often called good cholesterol; helps transport cholesterol away from tissues |
| Triglycerides | A type of fat present in the bloodstream |
Why Is It Important for People With Diabetes?
- Helps assess cardiovascular risk.
- Identifies abnormal cholesterol and triglyceride levels.
- Supports decisions about lifestyle changes and treatment.
- Helps healthcare professionals monitor long-term heart health.
People with diabetes may need lipid testing periodically, depending on their age, cardiovascular risk, treatment and previous results.
Fasting is not required for every lipid profile. Your doctor may request a fasting sample in certain circumstances, particularly when triglyceride measurement or interpretation requires it.
6. Kidney Function Test (KFT): Are Your Kidneys Healthy?
Diabetes can affect the small blood vessels in the kidneys over time. This may lead to diabetic kidney disease, sometimes without noticeable symptoms during its early stages.
A Kidney Function Test (KFT) helps assess how well the kidneys are working.
Important Parameters in Kidney Function Testing
| Parameter | What it indicates |
| Serum Creatinine | A waste product measured to assess kidney function |
| eGFR | An estimate of how effectively the kidneys filter blood |
| Blood Urea | Helps assess kidney function alongside other clinical findings |
| Electrolytes | Minerals such as sodium and potassium that help maintain fluid and chemical balance |
Why Is Kidney Monitoring Important in Diabetes?
- Helps identify changes in kidney function.
- Supports early detection and monitoring of kidney disease.
- Helps healthcare professionals review medication safety and treatment.
- Provides information about kidney-related complications.
Don't Forget the Urine Albumin Test
Kidney monitoring in diabetes is not limited to blood tests.
A Urine Albumin-to-Creatinine Ratio (UACR) checks for small amounts of albumin, a protein that may appear in urine when the kidneys are affected.
For people with type 2 diabetes, kidney screening with eGFR and UACR is generally recommended at least annually. For people with type 1 diabetes, screening is generally recommended after five years of diabetes duration and then at least annually.
Your doctor may recommend more frequent monitoring if you already have kidney disease.
7. Liver Function Test (LFT): Why May It Be Recommended?
People with diabetes, particularly type 2 diabetes, may also have an increased risk of metabolic dysfunction-associated steatotic liver disease (MASLD), previously commonly called non-alcoholic fatty liver disease.
A Liver Function Test (LFT) measures certain enzymes, proteins and substances in the blood that provide information about liver health.
Common LFT Parameters
| Parameter | What it indicates |
| ALT (SGPT) | An enzyme that may increase with liver cell injury |
| AST (SGOT) | An enzyme found in the liver and other tissues |
| ALP | An enzyme associated with the liver and bones |
| Bilirubin | A substance processed by the liver |
| Albumin | A protein produced by the liver |
Why Might Your Doctor Recommend an LFT?
- To investigate abnormal liver-related findings.
- To assess possible liver conditions.
- To evaluate certain medication-related concerns.
- To investigate symptoms or other clinical risk factors.
An LFT is not a substitute for liver imaging or a complete liver assessment. Normal enzyme levels also do not completely rule out fatty liver disease.
Not everyone with diabetes needs an LFT simply because they have diabetes. Your doctor can decide whether it is appropriate based on your medical history and risk factors.
8. Which Diabetes Tests Should You Consider This Diwali?
The appropriate tests depend on whether you already have diabetes, are at risk of developing it or need routine monitoring.
Here is a quick overview:
| Test | Main purpose | Who may need it? |
| HbA1c | Estimates average glucose over 2–3 months | People with diabetes; screening and diagnosis when appropriate |
| Fasting Blood Sugar | Measures glucose after fasting | Diabetes screening and monitoring |
| PPBS | Measures glucose after a meal | Selected people with diabetes, as advised |
| Lipid Profile | Assesses cholesterol and triglycerides | People with diabetes and those with cardiovascular risk factors |
| KFT | Assesses kidney function | People with diabetes as part of kidney monitoring |
| Urine ACR | Detects albumin in urine | Kidney screening in people with diabetes |
| LFT | Assesses liver-related blood markers | When clinically indicated |
You may not need every test listed above at the same time. Your healthcare professional can recommend an appropriate testing schedule based on your diabetes history, age, medications, previous reports and other health conditions.
9. 7 Practical Tips to Manage Diabetes During Diwali
Along with regular health monitoring, simple everyday habits can help you maintain a consistent diabetes management routine during the festive season.
1. Be Mindful of Sweet Portions
Enjoying a festive sweet may be possible within your individual meal plan. Pay attention to portion sizes and avoid eating several sweets together.
2. Avoid Skipping Regular Meals
Skipping meals to compensate for festive eating can affect glucose levels and may increase the risk of low blood sugar for people taking certain diabetes medicines.
3. Choose Snacks Carefully
Limit frequent consumption of fried snacks and refined carbohydrate-rich foods. Include suitable protein and fibre-rich foods in your meals.
4. Stay Physically Active
A comfortable walk after a meal, if suitable for your health, may support glucose management. Follow your doctor's advice about exercise, particularly if you experience low blood sugar.
5. Stay Hydrated
Drink adequate water throughout the day unless you have been advised to restrict fluids because of a medical condition.
6. Maintain Your Medication Schedule
Do not skip, stop or change your prescribed diabetes medication to accommodate festive meals. Discuss any required adjustments with your healthcare professional.
7. Keep Up With Your Health Checkups
Follow your recommended HbA1c, glucose, kidney and cholesterol monitoring schedule. Do not wait until you experience symptoms to discuss overdue tests with your doctor.
10. Who Should Consider Diabetes Screening?
Diabetes screening may be recommended for people who have certain risk factors, even if they do not experience noticeable symptoms.
Risk factors can include:
- Being overweight or having obesity.
- Having a parent or sibling with diabetes.
- Leading a physically inactive lifestyle.
- Having high blood pressure.
- Having a history of gestational diabetes.
- Having polycystic ovary syndrome (PCOS).
- Having previously diagnosed prediabetes.
- Having other conditions associated with insulin resistance.
For many adults, diabetes screening is recommended from age 35, with earlier testing considered when risk factors are present.
People with prediabetes generally need repeat testing at least annually, while the frequency for people with normal results depends on their risk profile.
A healthcare professional can help determine the appropriate screening test and interval.
Conclusion
Diwali is a time to celebrate, enjoy traditional food and spend time with loved ones. If you are living with diabetes, taking care of your health during the festive season is just as important as enjoying the celebrations.
Regular monitoring through HbA1c, fasting and post-meal glucose tests, lipid profile, kidney function tests and urine albumin screening can help healthcare professionals assess different aspects of diabetes management and associated health risks.
The right tests at the right time can support informed healthcare decisions. Celebrate mindfully, follow your prescribed treatment plan and stay consistent with your recommended health checkups.
Medical Disclaimer: This article is intended for general educational and awareness purposes only. It is not a substitute for medical diagnosis, treatment or professional medical advice. Health screening recommendations vary according to age, sex, symptoms, medical history, medications, family history and individual risk factors. Please consult a qualified healthcare professional before deciding which tests or screenings are appropriate. Do not start, stop or change medication based solely on information in this article.
