Curate, connect, and discover
It probably wouldn't have crossed your mind due to your current profession; to be clear, I am not a villain and this would be an ETHICAL experiment that you'd have to consent to first. Unheard of, I know.
I understand if you're not willing to do this, but there would be many benefits if you decided to change your mind at some point. Caffeine IS a drug and it does have adverse effects on your body, even if you're unable to register them.
It's very likely that you've unconsciously blocked out very present symptoms since you consider the drink a necessary part of your daily routine, essentially establishing a placebo effect.
Fun experiment! We wean you off the drink by making you take a little less every day until it's out of your system completely so your body doesn't go into shock!
It'll be like you're in rehab but you don't actually go to a facility and the caretakers are actually just your staff.
Fun experiment: Tamper with my drink and see what happens.
Go on. I dare you.