track your daily caffeine intake. add your drinks and see where you stand.
daily total
0mg
caffeine free
400mg fda recommended limit
add your drinks above to get started.
caffeine has a half-life of about 5 hours. if you drink 200mg at 2pm, you'll still have 100mg in your system at 7pm and 50mg at midnight. most sleep experts recommend cutting off caffeine 8-10 hours before bed.
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