I remember reading an article, years ago, about how one should never trust their gut. They cited the presence of serial killers like Ted Bundy and how smoothly they talked and acted. This made me laugh. Bundy, et al, had no logical reason not to trust them. Even if we had today's tools, we wouldn't find anything terribly remiss in their background. Those people who weren't taken in were following their gut.
Perhaps there's some confusion about gut following. This isn't just mindlessness; deliberately slowing down and thinking. It's deeper, though, than simply analyzing facts. But it's more than airy fairy mindless trust.
Learning to listen to that inner guide takes time and deliberate training. Often, that voice gets drowned out by the din of modern life. Much to our detriment.