Conditions that affect ability to consume food (diet, appetite, masticating)
Food at a gaming table is more components of socialization and less one that is a requirement for gameplay. If a player is on a restrictive or specialized diet then food at the game table should follow suit. If the player desires food, the GM is able to provide, and food consumption is preapproved by the player's caregiver, then familiarise yourself with the condition in question and how best to respond to those needs.
Likewise, it may make sense to cut out or avoid topics within gameplay that relate to food or it’s consumption. Be aware of dietary restrictions, and if they exist, avoid the specifically restricted consumables.