http://www.heraldextra.com/news/state-and-regional/lds-church-clarifies-stance-on-caffeine/article_e4e357d0-ba5d-5a6c-8e78-dd1e791a34b2.html

It's pretty clear caffeine is not against the word of wisdom. Like I said, it's not like you need a daily dose of caffeine as part of your healthy food pyramid. You're most likely better off without it. All I'm tired of is the judgement from people who think one's morality or worthiness in the church is related to their caffeine consumption. I feel like we're really prone in the church to holding others to our own grey areas of standards and it fosters more pain than spiritual progress.