Is controlling the food of parents suffering from chronic diseases such as diabetes and high blood pressure, and reducing the quantity of their food out of concern for their health, considered disobedience to parents, even if they dislike it?

A Muslim must look after his own interests and ward off harm from himself, according to the Prophet, peace and blessings be upon him, who said: “There is no harm nor reciprocal harm.”

If certain foods reach the level of apparent harm, it is not permissible for a Muslim to consume what directly and certainly harms or injures him.

However, if the harm might occur gradually, consuming food that is originally permissible is not forbidden. Nevertheless, one should diet as much as possible to avoid what is expected to cause harm.

It is obligatory to be gentle with parents when preventing them from what is feared to harm them, and to tactfully offer them what suits them. If they insist on consuming an excess, it is not permissible to prevent them or to anger them.