How clean should a nudist be? Depends on how close you get to 'em.
I can get on a rap about sweats/saunas. On how it gets you clean and you don't smell so much, because stuff detoxes out. How you can smell the difference as stuff comes out. How it gives a natural clean to scrape. How heat effects microbes,bacteria...but....
I scrape most of my body and rinse it with water. I wash the armpits and crotch with soap and water as I scrape. Doctor whats his names natural biodegradable stuff is good, but I'm just now getting off of good 'ol Dial antibacterial soaps.
I eat fermented foods often, a variety of it. I make fermented food, which is even better variety, balanced and natural. 17,000 different biological probiotic whatnots and most of the commercial stuff has three to five important ones. I put organic, fresh foods into me, and try to know what richness their soil is made up of. The organisms, in soil, to the plants to the body go up my food chain. I don't know how good a job it does, but I feel and look better. My hypoglycemia goes away. Cooking food, and over cooking kills nutrients, but also microbial stuff. I stay away from antibiotics and sick people as best that I can. Clean comes from the inside out. Microbes are everywhere, so not so much clean as healthy is key.
Think of all of the dust in the environment absorbed into the body, the lungs, interacting with it, biological build up in clothed pants, etc. Bare feet, absorb and interact, too. A naked body breathes better, interacts better, I would figure.
I don't know, but sticking to millennia old natural environmental ways of relating to the world seems a good policy. Sweating cooped up in polyester doesn't adhere to that message. GMO, antibacterial meats and treatments to cattle, processing, over processing, less fresh foods, PPK soils...its all new and I can taste the difference in most of it. So, I'll stay naked and natural.
Exercise makes a body breathe and systems move. How clean has lots to do with how much movement is in a lifestyle.
Jbee