Yeah, bananas are excellent replenishment, esp in warm weather. Potassium, the salt that you cannot train your body to sweat less and that must be replaced. Also sugar in a form very kind to the body. Packaged with water and in a biodegradable container.

(A little aside about salts in sweat. I practiced eating a low salt diet year round in my racing days. My sweat was not salty tasting adn did not sting when I got it in my eyes. In hot races, I did not have to eat large quantities of salt (sodium). My sweaty jerseys were not salty. I did have to replace potassium which I did with bananas and the electrolyte drink ERG, now called Vitalyte. The book I learned this from pointed out that inhabitants of hot portions of the world where salt was scarce did far better than the westerners who visited them eating the same local foods. The challenge is that one has to abandon the American diet completely.)

Ben