Beat the Heatwave: What to Eat (and Avoid) for Optimal Energy & Hydration (2026)

In the midst of a scorching heatwave, the question arises: how can we stay cool and nourished? It's a delicate balance, as the very act of digesting protein can generate more heat than other food groups. Aisling Daly, a senior lecturer in nutrition at Oxford Brookes University, advises against overindulging in protein during these sweltering days. Cooking protein-rich foods like meat, chicken, and fish can be a challenge in the heat, and even a simple BBQ might not be the most appealing option. But fear not, for there are alternatives. Enter the air fryer, a versatile kitchen appliance that cooks with less energy and generates less heat than a conventional oven. According to Radio 4's Sliced Bread, air fryers are a game-changer for energy efficiency. And for those who prefer a slower cooking method, the humble slow cooker, often forgotten in the back of the cupboard, emerges as a more energy-efficient option, releasing minimal heat. But the key to staying cool and hydrated lies in our dietary choices. Opt for easily digestible foods like fruit, vegetables, and carbohydrates. Dr. Daly suggests pre-cooked meats, bean salads, eggs, and Greek yogurt as excellent protein sources. For vegetarians, lentils, nuts, milk, tofu, and cheese provide the necessary protein. As for hydration, the NHS recommends six to eight glasses of fluid daily, but in a heatwave, this number can increase significantly. Dr. Charlotte Mills emphasizes that individual fluid needs vary based on factors like age, body size, activity levels, and health status. It's not just about drinking water; we must also eat our water. Fruits and vegetables with high water content, such as cucumbers, tomatoes, lettuce, celery, watermelon, and strawberries, are excellent choices. Interestingly, warm or room-temperature drinks can be just as effective for cooling down as cold ones. Research suggests that hot drinks stimulate sweating more quickly, helping to regulate core body temperature. So, indulge in a warm cup of tea or coffee without guilt. However, be mindful of caffeine intake, as excessive consumption can lead to dehydration. For those who enjoy matcha, it's a good option, as it contains less caffeine than a regular coffee. In the southern European style, consider adjusting your daily routine. Start with an early breakfast, take a siesta during the hottest part of the day, and end with a late dinner. This approach not only aligns with cultural traditions but also supports your body's need for hydration and rest during the heatwave.

Beat the Heatwave: What to Eat (and Avoid) for Optimal Energy & Hydration (2026)

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