Truth behind whether Kate Hudson and Matthew McConaughey’s controversial hygiene habit is bad for you, according to doctor

We thought celebrities would know better about opening up about their less-than-common hygiene habits by now, but Kate Hudson has proven that's very much not the case.

Who could forget that fateful day in 2021 when actor Jake Gyllenhaal admitted to Vanity Fair: "More and more I find bathing to be less necessary.

“I do also think that there’s a whole world of not bathing that is also really helpful for skin maintenance, and we naturally clean ourselves."

Something was clearly in the water (or lack of...) in 2021, because married couple Mila Kunis, 40, and Ashton Kutcher, 46, appeared on Dax Shephard's Armchair Expert podcast.

Mila admitted: "I don't wash my body with soap every day. But I wash pits and t**s and holes and soles."

Ashton then chimed in to reveal that more often than not, he uses water on his 'armpits and crotch' and 'nothing else'.

The practice is also used on their children, with Mila adding: "When I had children, I also didn't wash them every day. I wasn't the parent that bathed my newborns - ever."

The latest celebrity to air their dirty laundry is actress Kate Hudson, 45 - who also brought her How To Lose A Guy in 10 Days co-star, Matthew McConaughey, down with her.

Appearing on Watch What Happens Live with Andy Cohen last week, Kate was asked: "Was that old urban legend true that you forced Matthew McConaughey to wear deodorant while filming Fool’s Gold?"

Kate responded: "No. He doesn’t wear deodorant," she explained. "And by the way, I don’t either.

"My thing was, I could smell him from - because we were so close! He's, you know, we're au naturale."

So, it seems it's about time for doctors and dermatologists to step in and clear up whether or not us lot, the Average Joe's, are wasting our time with deodorant.

Enter Dr. Nina Botto, an associate professor of dermatology at the University of California, who is having her say.

She told CNN: "People have strong preferences and sensitivities to smell.

"People, from the beginning of time, have used perfumes [or] colognes to mask odor, but it’s not like flossing your teeth, where there’s data that you’re actually going to live longer if you floss your teeth regularly.”

As for what we should do if we sweat a lot, Dr. Joshua Zeichner, an associate professor of dermatology at Mount Sinai Hospital guided people to use antiperspirants at night: "Since we make less sweat at night, they can more effectively form a plug within the sweat gland if you apply them before bed.”

Echoing a similar sentiment, Dr. Julie Russak, a board-certified dermatologist and founder of Russak Dermatology Clinic, said that if you're not an excessive sweater, using deodorant is 'probably not' a good idea. She added: "By blocking [sweat production] completely, you are risking paradoxical increase of sweat production in other areas.”

So there you have it - maybe the celebs are right after all... but we'd advise treading carefully, especially if you have to undergo a morning commute.