Hot Weather Running Nutrition Heat Changes Everything Running in hot conditions (80°F+) dramatically changes your nutritional needs. Early XC season (August–September) is when most heat-related problems occur. --- How Heat Affects Nutrition Needs Energy Needs Increase - Your body burns more calories cooling itself - Heart rate is higher at the same pace (cardiac drift) - You may need 200–400 extra calories on very hot days Sodium Needs Spike - Sweat losses double or triple ...

Hot Weather Running Nutrition Heat Changes Everything Running in hot conditions (80°F+) dramatically changes your nutritional needs. Early XC season (August–September) is when most heat-related problems occur. --- How Heat Affects Nutrition Needs Energy Needs Increase - Your body burns more calories cooling itself - Heart rate is higher at the same pace (cardiac drift) - You may need 200–400 extra calories on very hot days Sodium Needs Spike - Sweat losses double or triple ...