Milk Recognized as a Hydration Ally During Extreme Heat

As extreme heat events become more frequent, hydration remains a critical concern. Experts are increasingly highlighting milk as an effective beverage for maintaining hydration in such conditions. According to Dr. Natasha Fernando from Britain, milk can help the body stay hydrated longer than water due to its nutritional composition. The University of St. Andrews cites studies indicating that milk contains fats, proteins, natural sugars, and electrolytes that slow down fluid loss from the body, allowing for longer fluid retention and reduced urine production.

Ronald J. Maughan, a hydration specialist from Loughborough University, noted that milk's benefits are linked to its nutrient and electrolyte content. He explained that milk consumption slows gastric emptying, which directly affects the kidneys, resulting in less urine production. The National Federation of Dairy Industries also emphasizes milk's role in recovering fluids and vitamins not only during high temperatures but also after physical activity.

The renewed interest in milk's hydrating properties has emerged in Spain following the first extreme heat episodes recorded at the end of May and early June, with temperatures nearing 40 degrees Celsius in various regions. Experts caution that dehydration can lead to symptoms such as intense thirst, dizziness, fatigue, irritability, confusion, and decreased urination. In young children, it can also cause dry mouth, lack of tears, and sunken eyes.

However, experts warn that not everyone may tolerate milk in the same way. Individuals with lactose intolerance or dietary restrictions should be cautious before incorporating it as a regular hydration beverage. Proper refrigeration and ensuring the milk's quality before consumption are also recommended. Despite these considerations, milk's hydrating properties continue to be part of the nutritional discussion in the context of high temperatures and physical activity.