Tag: Red bull slush

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Nutrition Diet: A Guide to Answering How Much Caffeine is in a Sonic Energy Drink?

Oct 28, 2025 •

5 min read

According to Sonic Drive-In, a medium Red Bull Slush contains 40mg of caffeine. This information is critical for understanding **how much caffeine is in a Sonic energy drink**, as the answer varies dramatically depending on whether you are referring to the fast-food chain’s beverage or an entirely different brand.