I suggest we update the close question reason for health or nutrition as follows (new text in bold) to emphasize that health factors are included as off topic (excuse the extra space that is an artifact of markdown limitations):
Questions on nutrition , health or requests for medical advice are off-topic here; you should contact a qualified medical professional instead.
If we are up against a character count limit, I suggest:
Questions on nutrition, health or requests for medical advice are off-topic here; instead contact a qualified medical professional.