At first, I saw nothing to mention in your article. After a little scrutiny though, I note these minor errors: “The skin intake of magnesium has low risk,” should be “The skin intake of magnesium has (a) low risk.” Or “The skin intake of magnesium (is) low risk.”

“It’s relatively safe to ingest magnesium via the skin” is even better. (Easier to read, (especially for non-medical folks) and grammatically accurate.

“However, the problem with magnesium supplementation is our bodies can tolerate only minimal amount via the digestive system.” A is required before “minimal.”

“My personal testimonial on this magical substance for my immunity is that since I started the regime of using Epsom salts in different ways, I had no flue or cold symptoms over many years.”

A “Flue” is a duct pipe. You meant to say flu.

Hope this helps! I recommend ProWritingAid. After I went through the article unaided and picked up the errors, I ran a check with the app and it found them too. Off course, these points might be nothing to do with lack of curation. But then again…