As intense heatwave warning issued in country, here's how to keep blood sugar level under control

The India Meteorological Department (IMD) has issued a warning for severe heatwaves in several parts of the country. Red alert, the highest degree of warning issued during heatwave conditions, has been issued for Delhi NCR and many parts of North India. In view of the intense heat wave that is going to prevail all over the country for a few days now, here are a few tips on how to take care of your health.

High temperature can exacerbate chronic health conditions like diabetes. If you know someone who struggles with erratic blood sugar level, pay attention to the tips mentioned below. Managing diabetes during an intense heat wave requires careful planning and proactive measures to prevent complications. Extreme heat can exacerbate diabetes symptoms and lead to severe health issues such as dehydration, heat exhaustion, and heat stroke. Here are comprehensive strategies to manage diabetes effectively during a heat wave.

Heatwave can worsen blood sugar level

Diabetes affects the body’s ability to regulate blood sugar levels, and extreme temperatures can complicate this regulation. High heat can influence blood glucose levels, dehydration can occur more rapidly, and certain diabetes medications may not work as effectively. Additionally, people with diabetes are more susceptible to heat-related illnesses.

Dr Ashok Jhingan, MD, Director, Diabetes and Metabolic Research Center, Delhi said, “Maintaining a healthy routine is essential for managing diabetes, but the summer months often bring disruptions. Changes in daily habits can lead to lapses in following a diabetes-friendly diet or checking blood glucose levels on time. Additionally, during heatwaves, people living with diabetes are at a higher risk of dehydration, especially if their blood glucose levels are uncontrolled. To effectively balance blood sugar levels, it's important to consider measures like continuous glucose monitoring (CGM). CGM devices, compatible with smartphones, offer real-time monitoring even while on the move, preventing routine changes from compromising diabetes management.”

It’s vital for individuals with diabetes to keep blood sugar levels within the recommended target range (70 - 180 mg/dl) for a significant portion of the day, especially during the summer. One way to do this is by using continuous glucose monitoring (CGM) devices, which provide information on glucose levels without requiring finger pricking. Such devices have metrics like Time in Range – and checking your readings more often is associated with more time spent in your optimal range, which can improve your glucose control.

Ensure you have the right kind of hydration

Staying hydrated is crucial. Water helps regulate body temperature and maintain blood volume. Drink water frequently, even if you don’t feel thirsty, to prevent dehydration. Sugary drinks can cause blood sugar spikes, and caffeinated beverages can increase fluid loss. Opt for water or electrolyte-enhanced drinks without added sugars.

Monitor blood glucose levels frequently

Monitor your blood glucose levels more often than usual. Heat can cause unpredictable changes in blood sugar, so frequent checks can help you manage these fluctuations effectively. Heat can affect how your body absorbs insulin. Consult your healthcare provider about how to adjust your insulin doses during a heat wave to maintain optimal blood sugar levels. High temperatures can affect the potency of insulin and other medications. Store your insulin in a cool place but avoid freezing it. Use a cool pack or insulated bag if you need to carry it with you. Keep your glucose meters and test strips out of direct sunlight and heat. Store them in a cool, dry place to ensure they provide accurate readings.

Do not disturb your diet and exercise routine

Maintain a balanced diet and eat regular meals to keep your blood sugar stable. Include plenty of fruits, vegetables, lean proteins, and whole grains. Avoid strenuous physical activities during peak heat hours, typically from 10 a.m. to 4 p.m. Opt for indoor exercises in a cool environment or exercise early in the morning or late in the evening when it’s cooler.


People with diabetes need to take extra care of their feet, as high temperatures can exacerbate foot problems. Wear comfortable, breathable shoes and check your feet regularly for any signs of blisters or sores.