TNO,Hypoglycemia affects non diabetic people as well as people who have diabetes.It can result when a person has eaten a high proportion of fast acting carbohydrate,hence an over action of insulin resulting in a drop in blood glucose levels(a lay mans definition)Also,I think the ANO's say you may not operate an aircraft under the influence of drugs.Insulin,as taken as an injection by a person with type1 diabetes ,is a hormone.Of cource teh airline should supply meals to its crew for no other reason than it's always been done.Think of the eye candy DJ get every time they get a meal;The others get heartburn.Old boilers !