The gluten debate has become one of the most polarizing topics in nutrition and medicine. On one side, we hear that gluten is a toxic protein causing widespread inflammation and disease. On the other, mainstream voices dismiss gluten sensitivity as a fad, relevant only to the small percentage with celiac disease. As functional medicine practitioners, we know the truth lies in the nuanced middle ground, where individual biochemistry, gut health, and immune function converge to create highly personalized responses to this ubiquitous protein. So where does gluten truly stand in the spectrum of dietary components? The answer, as with most things in functional medicine, is: it depends.