Sodium is available in adequate quantities from a variety of plant foods. Water Content Drink 8 to 10 glasses of water. That is the message that we are getting from the media, and traditional health professionals. Our ancestors didn't drink 8 to 10 glasses, nor do those in the developing nations. Water is vital to performance non the less.
Dehydration is probably the biggest factor in decreased performance come game day.
However you can easily avoid dehydration without 8 to 10 glasses a day. That is by eating water rich foods. High water content foods are recommended by peak performance coach Anthony Robbins. With the exception of cow's milk, animal foods are low in water content. Plant foods, especially fruits and vegetables are high in water content.