In fact, let's read a chunk of what Silverstone has to say about vaccines. "...While there has not been a conclusive study of the negative effects of such a rigorous one-size-fits-all, shoot-'em-up schedule, there is increasing anecdotal evidence from doctors who have gotten distressed phone calls from parents claiming their child was 'never the same' after receiving a vaccine. And I personally have friends whose babies were drastically affected in this way."
Although some of the advice could be helpful -- eating veggies is definitely good for you! -- other tidbits, like the information above or suggestions on how to avoid post-partum depression, are actually fairly dangerous. Others, like suggestions on how to potty train your child using elimination communication, aren't feasible at all for most parents, like the ones who have jobs.
Plenty of celebs write books on diet and lifestyle that fall into the category of aspirational living, at best -- not everyone has the time, energy, or money to make Gwyneth Paltrow's salmon burgers with pickled ginger recipe from "It's All Good" -- they're not usually insulting and dangerous to people who face real issues in their lives about health, fertility, and child-raising. It's just another way to make people feel bad about themselves, with pseudo-science as an organic cherry on top.