18/12/2025
Hydration - why it is important even in the winter
Hydration is vital for dogs year-round because water is the primary component of healthy, living cells (making up roughly 70–80% of a dog's body weight) and is essential for nearly every physiological function.
Staying hydrated can help with...
➡Temperature Regulation: Dogs cool down primarily through panting, which causes significant water loss through evaporation. Even in winter, water is needed to maintain a stable internal body temperature.
➡Digestion and Nutrient Transport: Water facilitates hydrolysis, the process of breaking down food into nutrients, and then transports these nutrients to cells. It also helps move waste through the system to prevent constipation.
➡Organ and Joint Health: Proper hydration flushes toxins from the kidneys and liver. It also cushions the brain and spinal cord and keeps joints lubricated, which is especially critical for older dogs or dogs with mobility issues in cold weather.
➡Cognitive Function: Adequate water intake supports blood flow to the brain, helping maintain focus, energy levels, and overall alertness.
Possible Causes of Winter Dehydration:
➡Dry Indoor Air: Central heating lowers humidity, drying out skin and respiratory passages, increasing moisture loss.
➡Reduced Thirst: Cold temperatures can suppress your dog's thirst, so they don't drink enough even when their body needs it.
➡Increased Activity in Snow: Playing in snow is physically demanding, leading to fluid loss through panting.
➡Respiratory Loss: Breathing in cold, dry air causes water loss through respiration.
➡Harmful Substances: Ingestion of rock salt or antifreeze can cause burns or illness, leading to dehydration.
How to Prevent It:
✅Offer Water Frequently: Keep fresh, clean water available, even if they don't seem to be drinking much.
For older dogs or dogs with mobility issues, have more than one bowl of water available so they don't have to go far to have a drink.
✅Add Wet Food: Mix in wet food or add water to kibble/dry food to boost fluid intake.
Check for Signs:
⚠Loss of Skin Elasticity: If you gently pinch the skin between the shoulders and lift slightly. It should "snap back" quickly in to it's normal position. If it doesn't, your dog may be dehydrated.
⚠Dry Gums and Nose: Gums should be pink and moist; dry or sticky gums can indicate dehydration.
⚠Lethargy: A sudden drop in energy or unusual weakness.
⚠Sunken Eyes: Eyes that appear dull or recessed.