As a member of some Facebook groups, I hear often in both dietary and spiritual communities questions like “Should I trust this person?” People ask about books, authors, doctors, gurus and so on. We should always read everything with a discriminating mind at all times. We don’t gain to blindly believe or blindly doubt anything. We need to be conscious when we listen to others and only take what intuitively resonates on the soul level and discard the rest. And what resonates may change in time as we become more aligned with who we are on the soul-level.
Being deceived, if it does happen, is not such a bad thing if it teaches you to becoming more discerning and self-referencing.