Andy Blow from Precision Fuel & Hydration talks through how to start hydrated in the video below -- including why the traditional approach to preloading can be problematic.
For additional details on starting hydrated, check out this great article from Precision Fuel & Hydration: https://www.precisionhydration.com/performance-advice/hydration/how-to-start-hydrated-and-why-that-is-important-sodium-preloading-what-to-do-before-a-race-hydration/
While not required for every training session or race, your performance will be improved by preloading for races/sessions that are long, take place in hot/humid weather, and/or are likely to lead to significant sweat losses due to other environmental factors (e.g. a longer indoor bike ride where you know you'll end up with pools of sweat on the floor).
Want to pick up some electrolyte tablets for your bottles so you can start hydrated? Use the code purplepatch2023 for 15% off PH1500 and all other Precision Hydration products at precisionhydration.com!