Good news for all coffee lovers out there as recent studies show that energy drinks are way harmful than caffeine. Drinking at least 32 ounces of the energy drink daily could lead to a drastic change in a person's blood pressure and heart function. Health experts are, therefore, advising members of the public to opt for caffeine instead.

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According to NBC News, there has been a rapid growth in the demand for energy drinks from across the world. There are almost 500 energy drink brands on the market today.

In an interview, Dr. Jennifer L. Harris explained that cause of this demand for energy drinks.

"However, energy drinks also contain a proprietary 'energy blend,' which typically consists of stimulants and other additives. Some of these ingredients (including taurine and guarana) have not been FDA-approved as safe in the food supply, and few studies have tested the effects of caffeine consumption together with these 'novelty' ingredients," she said.

Meanwhile, Health revealed that pregnant women could drink caffeine, but it should be in controlled quantities. The limit of caffeine for pregnant women is 300 mg a day.

While some suppliers of energy drinks insist that their products are safer than caffeine, experts say there is evidence to support to support the claim. According to the Food and Drug Administration, drinking up to 400 mg daily is considered safe. However, energy drinks have a great number of ingredients, whose safety are questionable.