Salicylate downregulates 11β-HSD1 expression in adipose tissue in obese mice and hence may explain why aspirin improves glycemic control in type 2 diabetes.  Epigallocatechin gallate from green tea can also potently inhibit this enzyme,  green tea is a complex mixture of various phenolics with contents varying with production and processing, some of the phenolics are known HDAC inhibitors that alter genetic expression. EGCG as usually consumed in green tea is poorly absorbed into the bloodstream, more research is needed to reach firm conclusions.
The receptor is activated by mineralocorticoids such as aldosterone and its precursor deoxycorticosterone as well as glucocorticoids , like cortisol . In intact animals, the mineralocorticoid receptor is "protected" from glucocorticoids by co-localization of an enzyme, Corticosteroid 11-beta-dehydrogenase isozyme 2 (. 11β-hydroxysteroid dehydrogenase 2; 11β-HSD2), that converts cortisol to inactive cortisone. It also responds to some progestins . Spironolactone and eplerenone are steroidal MR antagonists of the spirolactone group.