Boron is a naturally occurring element, like iron etc
Difference being, boron is toxic. People used to take arsenic for their health , it's a naturally occurring element, just like iron etc. That didn't work well. I'm always surprised when supposedly intelligent people buy into "Naturals" , head over heels. , one of those poorly regulated areas where proof of efficacy is not required, better take some Ivermectin while you're at it.
Grizz