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primarily caffeine-Caffeine is the only ingredient in energy drinks that we recognize as being able to affect our energy level. The presence of the stimulant substance may partly explain the side effects sometimes experienced by consumers who abuse energy drinks.
-In general, the rate of caffeine in these drinks is around 75-85 mg per 250 ml can. A
overconsumption of caffeine can cause headaches, palpitations, hypertension, anxiety, nausea and gastrointestinal disorders. These effects may be felt long after ingesting an energy drink, as caffeine remains in the body into an average of 12 hours.
-Furthermore, the effect diuretic (increase urine production) of caffeine promotes excessive loss of water and salt. This diuretic effect also increases the elimination of calcium, potassium and magnesium. Consumption of energy drinks during intense exercise can cause dehydration and lead to electrolyte imbalance.
-If you look at the supposedly active ingredients of energy drinks (taurine, glucuronolactone, gingko, inositol, etc..) Shows that for the most part, their tolerable upper intake level has not yet been determined. In other words, we do not know the risks of toxicity associated with their consumption.
-Furthermore, it still lacks studies on their possible interactions with drugs and other substances.
-Energy drinks should be avoided when it is hot and should not be used to rehydrate after exercise, or be mixed with alcohol.
The author of this column is a member of the Order of Quebec professional dietitians.
caffeine content of energy drinks
content of other beverages:
> 1 250ml cup of brewed coffee: 179 mg.
> 1 cup espresso coffee 250ml: 135mg.
> 1 355ml can of Coke or Pepsi: 45 mg.
> 1 250ml cup of hot chocolate: 25mg.
> 1 250ml cup of tea: 20 to 90mg.
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