Yes she is. She is an advocate of all sorts of diet and health claims and all sorts of "new age woo", not only not supported by any science but also as in the vaginal "stones" and “vaginal steaming” potentially very dangerous if not deadly. And many GYN's called her out on it.
http://www.independent.co.uk/life-style/health-and-families/gwyneth-paltow-goop-gynaecologist-women-put-stone-eggs-inside-into-vaginas-steam-dr-jen-gunter-a7541366.html
Yet not only does she have her own website but now also her own magazine called "Goop". How appropriate. Because if a woman shoves rocks up her ya ya, "Goop" is likely the result. She has also been featured in the magazine Women's Health, a magazine that lost all of its creditably in promoting Gwyneth Paltro as any sort of women’s health expert, assuming it ever had any to begin with.
I’ve glanced a Goop a couple of times. It’s a “lifestyle” blog, whatever that means.
She will recommend her “favorite things” like $400 tee shirts which are worth five dollars, tiny bottles of face cream which cost $500, etc. It’s a ridiculously snooty blog, just like Gwyneth.