This is only partially related, but I was trying to learn about hydration for exercise and this paper was the best source I could find. Downsides are it focuses on very long-duration exercise (think ultramarathons). If I had to summarize it, I would say it’s very nonchalant about salt and water consumption with its main recommendations being to just avoid over-consumption of water (particularly avoid consumption such that body weight increases during the exercise). They do note that individuals who find visible salt deposits on their clothes may need to increase salt consumption due to having high sweat rates and high salt-in-sweat concentrations. But otherwise the recommendations about whether or how to consume salt left me confused so it’s a pretty imperfect source.
This is only partially related, but I was trying to learn about hydration for exercise and this paper was the best source I could find. Downsides are it focuses on very long-duration exercise (think ultramarathons). If I had to summarize it, I would say it’s very nonchalant about salt and water consumption with its main recommendations being to just avoid over-consumption of water (particularly avoid consumption such that body weight increases during the exercise). They do note that individuals who find visible salt deposits on their clothes may need to increase salt consumption due to having high sweat rates and high salt-in-sweat concentrations. But otherwise the recommendations about whether or how to consume salt left me confused so it’s a pretty imperfect source.