Lucky chestnuts are not poisonous, they are even edible
In their homeland, the leaves and fruits of the lucky chestnut are even eaten. Pachira aquatica is therefore one of those houseplants that you can keep if you have cats in your household.
There is more of a danger to the tree from cats. If these gnaw or scratch the trunk, pests can penetrate, which the lucky chestnut can die.
In general, most cats stay away from lucky chestnuts anyway.
Tips
The trunk of the lucky chestnut contains vegetable juices that are classified as slightly toxic for children. Therefore, it is better not to let small children come into contact with the plant.