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salt association |
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exercise Exercise helps us stay fit, maintain a healthy weight and reduces our stress levels. Long term, it helps to protect against heart disease and stroke, and to keep our blood pressure constant. Active people need plenty to drink to prevent dehydration. When we exercise, we sweat - losing both water and sodium. It is crucial to drink water before, during and after exercise. As a rough guide, you need to drink about a pint of water or other non-alcoholic drink for every 30 minutes of activity, and more in hot environments. However, if we just replace the water, our blood plasma will be diluted. We must also replace the sodium and carbohydrate we lose. Sports dietician Jane Griffin says: "Losses of water and electrolytes in sweat must be replaced to prevent the body becoming dehydrated. According to the American College of Sports Medicine, fluids (such as sports drinks) that contain sodium and carbohydrate can help maintain fluid and electrolyte balance and exercise performance.*” *Reference: M.N. Sawka et al (2007).' Position Stand. Exercise and Fluid Replacement ' Medicine and Science in Sports and Exercise, 39 (2), 377-390.
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