In the midst of a scorching heatwave, the last thing anyone wants to do is turn on the oven. Cooking in hot weather can be a chore, and many of us find ourselves feeling less hungry. So, when the heat gets too much, should we consider changing our diet? Here's an expert take on how to navigate your nutrition during a heatwave, with insights and tips to keep you cool and energized.
Don't Sweat the Protein
Contrary to popular belief, increasing protein intake isn't necessary during a heatwave. In fact, it might even be counterproductive. Aisling Daly, a senior lecturer in nutrition at Oxford Brookes University, explains that protein-rich foods like meat, chicken, and fish require cooking, which can be off-putting in the heat. Outdoor BBQs can also become too hot to handle. Moreover, the very act of eating and digesting protein generates more heat in our bodies. This is because the stomach, intestines, and liver need extra energy to break down and absorb these complex molecules.
So, what should you eat instead? Dr. Daly recommends pre-cooked meats, bean salads, eggs, and plenty of Greek yogurt (even frozen). For a quick and easy meal, try making a smoothie with fruit, vegetables, and yogurt, and add in some peanut butter for a protein boost. If you're a vegetarian, lentils, nuts, milk, tofu, and cheese are excellent sources of protein.
Eat Your Water
Staying hydrated is crucial during a heatwave, but it's not just about drinking water. Dr. Daly emphasizes the importance of eating water-rich foods. Approximately 80-90% of fruits and vegetables are composed of water, making them excellent choices to stay hydrated. Cucumber, tomatoes, lettuce, celery, watermelon, and strawberries are all high in water content, with over 90%. Apples, carrots, cooked broccoli, and pears also contain 80-89% water, as do oranges, grapes, and pineapple.
Check Your Urine
If you're unsure about your hydration levels, a simple urine test can provide valuable insights. Dr. Charlotte Mills, a food and nutrition scientist at the University of Reading, advises checking the color of your urine. Pale yellow is ideal, indicating proper hydration. Orangey or dark brown urine suggests dehydration, as the kidneys are retaining water due to a lack of sufficient fluid in the body.
Hot Drinks Can Cool You Down
Contrary to common belief, warm or room-temperature drinks can be just as effective as cold ones for cooling you down. Dr. Daly explains that research shows your body sweats more quickly to regulate excess heat after consuming a hot drink. In contrast, cold drinks cause the body to sweat more slowly, as it tries to maintain a steady core temperature of around 37 degrees Celsius. So, enjoy your hot tea or coffee without guilt, as long as you stay within reasonable limits. One or two coffees a day should have minimal impact on your hydration levels, but excessive caffeine consumption can lead to dehydration.
In conclusion, during a heatwave, focus on staying hydrated through both drinking and eating water-rich foods. Opt for lighter protein sources, and don't shy away from warm or room-temperature drinks. By following these simple tips, you can navigate the heatwave with ease and maintain your energy levels.
