Hi, I asked my sister and she said 20 mg/kg of weight would make them sick, but she hasn't gotten back to me how much would kill them (or almost kill them). I don't she's actually had a case of it but she's been a vet for about 25 years. She gave me the example of one M&M which is 0.7 g and there are ~2 mg/g of methylxanthines (theobromine being one) in milk chocolate so 1.4 mg of it in one M&M. She used the example of a macaw being .5 kg so it would have to eat at least 10 M&Ms to even make it sick and it would probably start vomiting way before that.
FYI, she said avocados are more of a problem than chocolate. Hope this is helpful!
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branchandroot
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Date: 2025-05-10 01:02 am (UTC)FYI, she said avocados are more of a problem than chocolate. Hope this is helpful!