Diabetes is one of the most common chronic diseases in the Philippines — and one of the most misunderstood. Many people live with it for years without knowing, while others feel overwhelmed by a new diagnosis. The goal of this article is to cut through the confusion and give you a clear, practical understanding of what diabetes is, what it means for your life, and how you can manage it effectively.
Type 1 vs Type 2: What's the Difference?
Diabetes is a group of conditions defined by elevated blood sugar (glucose). The two main types work differently:
Type 1 Diabetes
Type 1 is an autoimmune condition — the immune system mistakenly attacks and destroys the beta cells in the pancreas that produce insulin. Without insulin, glucose cannot enter cells for energy and builds up dangerously in the blood. Type 1 usually begins in childhood or adolescence and requires daily insulin injections or an insulin pump. It cannot be prevented and is not caused by diet or lifestyle. It accounts for roughly 5–10% of all diabetes cases.
Type 2 Diabetes
Type 2 is far more common (90–95% of cases) and develops when the body either doesn't make enough insulin or doesn't use it effectively (insulin resistance). It is strongly linked to lifestyle factors — excess weight, physical inactivity, and poor diet — though genetics play a significant role too. Type 2 develops gradually over years and is largely preventable and, in early stages, reversible with lifestyle changes.
Pre-diabetes: The Warning Stage
Pre-diabetes means your blood sugar is higher than normal but not yet high enough to be classified as diabetes. It is a critical warning sign — without action, up to 70% of people with pre-diabetes will develop Type 2 diabetes within 10 years.
The good news: pre-diabetes is reversible. Research consistently shows that people who make significant lifestyle changes can reduce their risk of progression by 58%.
Symptoms of pre-diabetes: Usually none. This is why regular blood sugar screening is essential, even when you feel fine.
Risk factors: Overweight or obese (especially belly fat), family history of Type 2 diabetes, physically inactive, history of gestational diabetes, age over 45, Filipino or other Southeast Asian descent.
Understanding HbA1c
The HbA1c (glycated haemoglobin) test is the gold standard for monitoring diabetes. Unlike a fasting glucose test that gives you a single moment in time, HbA1c reflects your average blood sugar over the past 2–3 months by measuring how much glucose has attached to haemoglobin in your red blood cells.
| HbA1c Level | What It Means |
|---|---|
| Below 5.7% | Normal |
| 5.7% – 6.4% | Pre-diabetes |
| 6.5% and above | Diabetes (on two separate tests) |
| Below 7% (if you have diabetes) | Well controlled |
| 7%–8% (if you have diabetes) | Acceptable; room for improvement |
| Above 8% (if you have diabetes) | Poorly controlled — complications risk rises |
People with diabetes should have HbA1c tested every 3–6 months. Your target HbA1c will be individualised by your doctor — for older adults with other health conditions, a slightly higher target may be appropriate to avoid dangerous hypoglycaemia (low blood sugar).
Blood Sugar Targets
For people managing Type 2 diabetes, the general targets (which your doctor may adjust) are:
- Fasting blood glucose: 80–130 mg/dL before meals
- 2 hours after meals: Below 180 mg/dL
- HbA1c: Below 7% for most adults
- Blood pressure: Below 130/80 mmHg (diabetes raises cardiovascular risk)
- LDL cholesterol: Below 100 mg/dL
Home blood glucose monitoring — using a glucometer — is important for understanding how different foods and activities affect your blood sugar. Your diabetes care team can advise on the optimal monitoring schedule for you.
Lifestyle Changes That Reverse Pre-diabetes
The Diabetes Prevention Program — one of the largest clinical trials ever conducted — found that lifestyle intervention reduced the risk of pre-diabetes progressing to diabetes by 58%, compared with 31% for metformin alone. Here's what works:
Lose 5–10% of Your Body Weight
Even a modest weight loss of 5–7% body weight significantly improves insulin sensitivity. For a person weighing 80 kg, that's just 4–6 kg. You don't need to reach an "ideal" weight — every kilogram helps.
Reduce Refined Carbohydrates and Sugar
White rice, white bread, sweet drinks (soda, juice, iced tea), and sweets all rapidly raise blood sugar. Replacing white rice with red or brown rice, choosing vegetables over starchy sides, and cutting sweetened beverages are high-impact changes. You don't have to eliminate rice — reduce the serving and pair it with more protein and vegetables.
Increase Fibre
Dietary fibre slows glucose absorption and improves blood sugar control. Aim for 25–35 grams per day through vegetables, legumes (monggo, beans, lentils), brown rice, and fruit.
Move More, Sit Less
Both aerobic exercise and resistance training improve insulin sensitivity. Walking 30 minutes after meals is particularly effective at reducing post-meal blood sugar spikes. Even breaking up long periods of sitting with 5-minute walks every hour makes a measurable difference.
Medication Overview
When lifestyle changes alone are not sufficient to control blood sugar, medications are added. Here's a simplified overview of the main classes:
- Metformin: Usually the first medication prescribed for Type 2 diabetes. It works by reducing glucose production in the liver. Inexpensive, well-studied, and generally well-tolerated.
- SGLT2 inhibitors (e.g., empagliflozin, dapagliflozin): Remove excess glucose through the urine. Also have proven benefits for heart and kidney protection.
- GLP-1 receptor agonists (e.g., semaglutide): Stimulate insulin release after meals, reduce appetite, and promote weight loss. Some are weekly injections.
- DPP-4 inhibitors (e.g., sitagliptin): Mild glucose-lowering with few side effects.
- Insulin: Required for all Type 1 diabetes, and for some people with Type 2 when blood sugar cannot be controlled otherwise.
The right medication depends on your HbA1c, kidney function, other health conditions, and other factors. Never change or stop diabetes medication without consulting your doctor.
Managing Complications
Poorly controlled blood sugar damages blood vessels and nerves over time, causing serious complications:
Foot Care
Diabetes reduces sensation in the feet (peripheral neuropathy) and impairs wound healing. A small cut or blister can become a serious infection if unnoticed. Inspect your feet daily, keep them clean and moisturised, wear proper footwear, and never walk barefoot. See a podiatrist or your diabetes care team if you notice any wound, redness, or swelling.
Eye Health
Diabetic retinopathy is one of the leading causes of blindness in adults. High blood sugar damages the tiny blood vessels in the retina. Get a dilated eye exam at least once a year — in early stages, laser treatment can prevent vision loss.
Kidney Health
Diabetic nephropathy affects up to 40% of people with diabetes. Annual urine tests for microalbuminuria (tiny amounts of protein in the urine) can detect early kidney damage when it's still reversible. See our kidney health guide for more information.
Diabetes in the Philippines
The Philippines is among the top 10 countries for diabetes in the Western Pacific region. Several factors contribute to this: a diet high in white rice and sweetened beverages, rapid urbanisation and sedentary lifestyles, a genetic predisposition in Southeast Asians to develop Type 2 diabetes at lower body weights than Western populations, and limited access to diabetes management education.
It's worth noting that Filipinos tend to develop diabetes at lower BMIs than Western populations — a BMI of 23 already signals overweight in Asian classification guidelines. This means you don't have to be significantly overweight to have high diabetes risk as a Filipino.