What does Śāripūtrābhidharma Satipatthana sources mention about food? Does other Theravada source have such references?
Basically it cautioned the practitioner not to crave and endulge the 6 sense objects (form, sound, smell, etc.), clothing, food, drink, medicine, etc. for craving of those leads to suffering.
The Pali source mentioned the Four Nutriments which includes food as the physical nutriment, contact, mental volition, and consciousness. Analysis and various suttas are available here