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A member asked:
Cardiology-cocoa & pacs small amounts of dark chocolate trigger pacs <2 hrs. coffee seems to have no effect. is theobromine to blame and why?
A doctor has provided 1 answer
Possibly: Theobromine found in chocolate can be fatal to dogs and cats in low doses because of cardiac effects. Humans are less sensitive to it's potential toxic effects. A theoretical fatal dose for humans might be about 11 pounds of chocolate. It's conceivable that at lower doses it could cause PAC's in sensitive individuals.
Answered 9/2/2015
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