The majority of B vitamins are not toxic when consumed in excess because they are water soluble and any excess is just excreted in the urine. That is except for two of them:
As mentioned earlier, there are commonly used herbs that are often found in energy drinks. These include:
Guaraná is a small round red fruit native to the Amazon. One guaraná seed has twice the caffeine of a coffee bean, so it imparts the increased alertness with all of the potential side effects of caffeine listed earlier. To learn more about guaraná, click here.
Extracted from the root of the ginseng plant, ginseng has been found in studies to boost brain power – but you would need at least 200 mg to reap this benefit, which most drinks don’t contain. A word of caution: Ginseng has been shown to interact with blood-thinning drugs, potentially altering their effectiveness.
One serving of an energy drink can contain as much as 14 teaspoons of sugar! That’s more than double the recommended daily dosage. This much sugar spikes our blood glucose levels which is what gives us that energy boost. When those levels drop, they come crashing down and we crash as well. Additionally, this temporary spike is not worth the weight gain that comes with excess sugar consumption.