
What to Eat During a Heatwave: Foods That Cool Your Body at 40°C
When the temperature soars to 40°C, our diet becomes the ultimate defense to maintain energy levels, stay hydrated, and protect against heat stress.
Summary
- Water-rich fruits and vegetables (watermelon, cucumber) for natural hydration.
- Small, light meals with lean protein to ease digestion and lower internal body heat.
- Yogurt, buttermilk, and chilled soups for instant relief and electrolyte balance.
- Avoid fried foods, alcohol, excess caffeine, and heavy salt to prevent dehydration.
Discover all the details below…
Summer heatwaves test our physical endurance, making proper dietary choices essential. When temperatures reach or exceed 40°C, the body works twice as hard to regulate its internal temperature, resulting in significant loss of fluids and electrolytes through sweating.
Selecting the right foods not only offers relief from extreme heat, but also helps prevent dehydration, fatigue, and dizziness.
What to Include in Your Daily Menu
-
Water-rich fruits and vegetables: Watermelon, melon, cucumber, tomatoes, zucchini, iceberg lettuce, strawberries, and peaches consist of over 90% water. They act as a natural internal cooling system while replenishing potassium and sodium lost through sweat, preventing muscle cramps.
-
Small, light meals: Digestion generates body heat (dietary thermogenesis). Consuming heavy or large meals raises internal temperature even further. Opt for smaller portions every 3–4 hours. Fresh salads paired with lean protein—such as grilled chicken, white fish, eggs, or light cheese—are digested quickly without burdening the stomach.
-
Yogurt and buttermilk: Exceptionally refreshing and easy to digest. Yogurt is rich in probiotics that support gut health, which can often be disrupted by extreme heat. Pair it with fresh fruit for a light, hydrating snack.
-
Cold vegetable soups: While warm soups are comforting in winter, chilled options are summer treasures. Traditional gazpacho (tomato-based) or chilled cucumber-yogurt soup quickly replenish lost fluids, vitamins, and essential minerals.
What to Avoid
-
Fatty, fried, and spicy foods: Fried meats, heavy sauces, and fast food require tremendous energy to digest. This diverts blood flow to the stomach rather than the skin, impeding sweat production and natural cooling.
-
Alcohol and excessive caffeine: An iced coffee or cold beer may feel refreshing initially, but both caffeine and alcohol act as strong diuretics, forcing the kidneys to expel water and speeding up dehydration. Choose unsweetened iced herbal teas (such as mint or chamomile) instead.
-
High-sodium and high-sugar items: Excessive salt (found in chips and processed snacks) draws water away from your cells, drastically increasing thirst. Similarly, sugary foods and drinks cause sharp blood sugar spikes and disrupt fluid balance, leading to energy crashes later in the day.
Continuous and proper hydration with plenty of water remains the ultimate priority to stay safe and active during a heatwave.
Photo: Digital Visualization / paron.gr