In a world of "fake news", deception, "bait & switch", we search in vain for truth. Doctor Marshall's patient way with callers won my trust, educated me, stirred my hope for reversing & preventing health troubles, fit right in with, "God made our bodies to heal themselves".......if knowing what they need & providing it. The man's vision, willingness, his far-ranging search for deep explanation rarely failed to impress me as he "got his ducks in a row" to let knowledge of natural applications lead us to heal. When trust, or plain honesty fails, business stops.