The invention relates to a zinc-enriched biomass comprising living orsubsequently killed micro-organisms, selectedfrom the group consisting of Streptococcus thermophilus and Bifidobacteriumanimalis subsp. lactis and combinations thereof, amethod for the manufacture of said zinc-enriched biomass, as well as foodpreparations, nutraceutic products, functional foods,cosmetic and cosmeceutic products, and food supplements, comprising the saidbiomass. Furthermore, new micro-organism strainsare described which are able to concentrate zinc within the cell in very highamounts and therefore are particularly suitable for usein the method of the invention.
