Food premix (I) comprises: at least one component comprising algae, pseudo-cereal, oil-producing seed, oil-producing fruit and/or an aromatic plant or herb and pearl powder obtained from bivalve shell comprising Pinctada maxima, Pinctada margaritiferaor all other Pinctada oyestersand/or Tridacna gigas. An independent claim is included for dietary supplement comprising (I) and at least one diluent and/or filler. ACTIVITY : Anabolic. MECHANISM OF ACTION : None given.