Selenomethionine is an analogue of the amino acid methionine. The L-isomer is a common natural food source of selenium. There is evidence to suggest that selenomethionine is absorbed through the intestines and utilized by the body more easily than other forms of selenium found in foods and dietary supplements 1.


  1. Shen L, van DK, Luten J, Deelstra H. Diffusibility of selenate, selenite, seleno-methionine, and seleno-cystine during simulated gastrointestinal digestion. Biol Trace Elem Res 1997;58:55-63.