In Man vs. Wild, Grylls was supposed to be on his own in whatever inhospitable environment he ended up in. After all, it's called Man vs. Wild, not "Grylls and his crew lending a helping hand vs. Wild." But it's been revealed that Grylls has been assisted by his crew on several occasions without letting the audience in on the truth — even when he was not in immediate danger.

After serving as a consultant on the show, survival expert Mark Weinert warned viewers, "If you really believe everything happens the way it is shown on TV, you are being a little bit naive." For instance, in one episode that Weinert worked on, Grylls supposedly built a raft using only natural materials that he found around him, like hibiscus twine, palm leaves, and bamboo. However, Weinert said that he personally worked with a team of builders to put the raft together; then it was taken apart so Grylls could be filmed putting it together on camera.