It’s very individualized, and that may work fine for you, but consult a physician if you are unsure!įor me personally, I try to cap my consumption at 500mg per day. If your coffee consumption is very high, you may already consume more than 400mg of caffeine, which can be totally fine. Since tolerances vary, you may very well be able to handle more caffeine without any ill effects, but this is the general rule of thumb. If you were to have 2 of those coffees per day, that’s about 400mg of caffeine.Īccording to the FDA, 400mg is the recommended caffeine consumption limit. If you’re like me and drink a big cup (or glass) of coffee, you’re looking at around 200mg of caffeine. I like to estimate that a small cup of coffee will typically have around 100mg of caffeine. Depending on the type of roast, brewing method, etc, the caffeine can vary pretty widely. If you check out my caffeine comparison for Dunkin & Starbucks, you’ll see that caffeine content for coffee is all over the map. And since this blog is all about health and nutrition, we’ll also take a quick look at the calories, sugar, and ingredients. I want to break down some of the more popular energy drinks out there to see how they stack up. Red Bull acute kidney injury acute renal failure adverse events energy drinks renal dysfunction.As a lover of coffee, I don’t turn to energy drinks very often.ĭon’t get me wrong: I actually enjoy some occasional caffeinated energy drinks, but since I typically drink my cold brew coffee every single day, that’s plenty of caffeine for me.Ĭan you have coffee & an energy drink on the same day? Of course.īut, depending on your caffeine tolerance, you may find that level of caffeine consumption to be too much for you. Our report describes the first English language report of acute renal failure occurring in the context of ingestion of large quantities of energy drink without concomitant alcohol. Assessment of the Naranjo adverse drug reaction probability scale indicates a probable relationship between the development of acute renal failure and Red Bull ingestion in our patient.Īcute kidney injury has rarely been reported with energy drink consumption. A defined mechanism for injury is unknown. Only 3 of the 166 (0.18%) described renal failure, and none were reported with Red Bull specifically. According to the Food and Drug Administration's (FDA's) Center for Food Safety and Applied Nutrition Adverse Event Reporting System, between 20, the FDA has received 166 reports of adverse events associated with energy drink consumption. We identified 2 case reports via a search of MEDLINE, one of which occurred in combination with alcohol and the other of which was not available in English. Rechallenge was not attempted.Įnergy-drink-induced renal failure has been reported infrequently. Resolution of renal dysfunction occurred within 2 days of discontinuation of Red Bull and persisted through 10 months of follow-up. An interview revealed a 2- to 3-week history of daily ingestion of 100 to 120 oz of Red Bull energy drink. Assessment revealed that serum creatinine was elevated at 5.5 mg/dL, from a baseline of 0.9 mg/dL. To report a case of acute renal failure possibly induced by Red Bull.Ī 40-year-old man presented with various complaints, including a recent hypoglycemic episode.
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