Like a basic rule, the darker the chocolate, the more cocoa solids/theobromine it will comprise and the more toxic it’s more likely to be. Even so, even chocolate with less cocoa solids may be toxic if ample is eaten. Not all chocolates are established equal when it comes to toxicity. https://deanygmrh.gynoblog.com/35973102/the-2-minute-rule-for-pet-chocolate-intake-risks