Is it permissible to take food items from a charitable society when one is not in need of them?

The fundamental principle is that donated funds are disbursed to the specific entity designated by the donor. Therefore, if a charitable organization's funds are exclusively for the poor, it is not permissible for someone who is not in need to take from them. However, if the funds are designated for the poor and others, then it is permissible for someone who is not in need to benefit from them.