View Full Version : Caffeine & Impaired Nutrient Absorption?
10-28-2006, 11:51 AM
I was thinking, since caffeine is a diuretic, would that mean that there is the possibility of it causing you to excrete some water soluble vitamins?
10-28-2006, 01:46 PM
One adapts to the diuretic effects of caffeine pretty quickly so I don't think this would be a problem. Even at a high water intake the kidneys are pretty wiley at reabsorbing, either passively or actively, what we need.
10-31-2006, 02:59 PM
Robb - Found this study:
"Oral doses of caffeine increase the urinary excretion of calcium, magnesium, sodium and chloride for at least 3 h after consumption... no adaptation to the urinary losses occurs with continuing consumption of caffeine"
10-31-2006, 08:53 PM
Good stuff Craig! Way to do your homework on that!
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