Hypothetical hormonal mechanism by which potassium-rich diets benefit patients with rheumatoid arthritis

Results of a recent clinical trial showed elevated serum cortisol followed K supplementation. I suggest that this is what alleviated RA symptoms. I would like to suggest a “Cortisol-K” theory as a mechanism for De Coti-Marsh's proposed “K theory” while not precluding the possibility of eventual proof of a cure, possibly from effects of K inside cells other than the adrenal glands.