how much caffeine for 17 year old?
Burrell advises that adolescents under 14 should avoid caffeine where possible, and teenagers between 14 and 17 years of age should limit their intake to 100mg or less a day. “That's equivalent to a small milky coffee (60mg), or a couple of cups of tea (30mg each), or some [dark] chocolate (26mg/40g) a day,” she says.