Weigh yourself right when you wake up, after using the bathroom but before drinking anything. Write it down. Then, do a workout or a hard sweat session, and weigh yourself again. Every pound you lost is roughly 16 ounces (500 ml) of fluid gone.
This is the gold standard for athletes, but for normal folks? It’s a fun party trick. Just remember to drink back that weight loss over the next few hours. Don’t try to “save” weight by staying dehydrated—that’s like saving money by not paying your rent.
The 1 Minute Hydration Test | Hydronique Hydration
