Homemade Red Bull: A recipe that costs you 11 cents and wakes you up more than your angry boss or Monster energy drink! City Magazine Despite @shreddedsages claim, Red Bull doesnt seem to cause brain fog. In fact, an RCT has found that it can improve cognitive performance (no, it wasnt funded by Red Bull), with the sugary version Red Bull may be exploring a new product in the sleep and recovery beverage category. The claim has not been officially confirmed, and much of the discussion appears to originate from social L Carnitine Weight Loss Supplements Fuel the Bull Supplement Store