Drinking This Before You Exercise May Cause Blood Clots, Experts Warn

Staying hydrated while working out is essential not only for your overall health, but also for your exercise endurance. After all, it’s key to balancing your electrolytes, helping your joints and muscles function optimally, keeping your energy up, and of course, quenching your thirst as you sweat.
But experts say there’s one type of beverage that may be putting you in harm’s way when you work out, and it’s used by many athletes to keep their energy up.

Studies say that drinking this one thing may in fact raise your risk of blood clots when paired with acute episodes of strenuous exercise. Read on to find out which beverage can cause serious health complications—and whether you have reason to worry.

Drinking caffeinated beverages may lead to a higher risk of blood clots, one study found

Many athletes seeking to enhance their performance rely on caffeine for a pre- or mid-workout boost. Yet experts have found that there may be a potentially serious side effect to your preferred pick-me-up. In a recent study published in the journal Medicine & Science in Sports & Exercise, researchers learned that drinking caffeine increases coagulation during acute sessions of strenuous exercise, putting you at higher risk for blood clots.

The research team orchestrated two workout sessions for 48 young men with an average age of 23 and normal body mass index.
Study participants were given a beverage—first a placebo and later a caffeine-laden drink—before completing a challenging workout on an exercise bike. They then had their blood drawn.

The researchers observed that after consuming caffeine, coagulation levels were significantly higher, putting the study subjects at elevated risk of conditions such as heart attack, stroke, deep vein thrombosis, or pulmonary embolism.

You’re at greatest risk if you have certain underlying illnesses


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