Selenium in selected samples of infant formulas and milk commercialized in Belgium and Brazil: Total content, speciation and estimated intake

•Se is an essential component for human health and recognized as an antioxidant.•Total and Se species evaluated in infant formula from Brazil and Belgium.•Starters and follow-up samples presented the highest total Se concentrations.•SeMet was the main species found in milk analyzed samples.•Se daily intake though infant’s diet compared with established reference levels.