Some baristas swear that bananas can cure your coffee jitters, but the science just doesn't add up. Daniel M.N. Turner/NPR hide caption itoggle caption Daniel M.N. Turner/NPR The Salt Sorry, But Bananas Won't Calm Your Caffeine Jitters March 13, 2013 Can eating a banana counter the effects of being over-caffeinated? That's a claim that's been circulating around blogs recently. Some baristas swear by it, but we talked to a scientist who explains why it just isn't true.