26/06/2026
“The more you learn about hydration, the more you realise how much stronger marketing is over science in the whole hydration world.” - Dr Stacy Sims
It’s a good reminder that the most useful information is often the least glamorous. Water absorption in the small intestine actually needs both sodium and a small glucose source to work properly (plain water moves through without the same uptake.)
A formula Dr Sims has publicly backed: 500ml water, 1 tsp maple syrup, a small pinch of quality salt before training. No marketing hype, just simple absorption.
And if you’re in perimenopause or postmenopause, this isn’t just a training consideration. Progesterone’s mild diuretic effect, the sodium lost through hot flashes and night sweats, declining oestrogen affecting how reliably you even feel thirsty. Your body is asking for more support at exactly the stage most people are still just drinking water and wondering why they feel off.
You don’t have to have it all figured out. Start with the basics in slide 4 and go from there.
📍 Limitless, Central Hong Kong | Nutritional Therapy, Longevity Lab, Personal Training