system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why is chocolate poisonous for so many animals, especially mammals but humans can eat it fine?
gpt
Humans are able to metabolize theobromine present in chocolate at a much faster rate, usually 2 to 3 hours to half the amount in the body, compared to other animals such as dogs who take 17.5 hours to achieve the same result. Because of this, the toxic theobromine in their body builds up and remains long enough that it starts affecting them. In large amounts, it can affect humans the same way, though of course they would have to eat a much larger amount, somewhere around 6 kg of unsweetened dark chocolate, in one sitting.