24 Jun '13, 1pm

True or False: #Caffeine causes dehydration? Answer here,

Training and racing in hotter weather absolutely demands getting hydration right. For years, we've been told that key elements of doing so include avoiding caffeinated beverages and drinking small amounts throughout the day. Is that true? Let's look at some hydration claims and facts. CLAIM: CAFFEINE CAUSES DEHYDRATION Caffeine naturally occurs in the leaves, nuts and seeds of plants. It enters the runner's diet through various foods and beverages consumed every day, such as tea, coffee, colas, chocolate and energy drinks. (Put another way, items that many of us consume on a daily basis with great enjoyment.) Caffeine has long been identified as being a diuretic; it promotes the excretion of urine by increasing blood flow to the kidneys. Therefore, runners have traditionally been told, avoid caffeinated beverages, especially when it's hot, because increased water losses co...

Full article: http://www.runnersworld.com/drinks-hydration/myths-and-fa...

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