Abstract: A supplementary food composition comprising at least one organic mineral salt that contributes to alkaline power in a quantity ranging from 20 to 200 mEq and is capable of neutralizing an acidic charge of 20 to 200 mEq of H+ hydrogen ions H+ or 20 to 200 mmol of H+.

Abstract: A composition that induces synthesis of stress protective proteins during application of physical or physiological stresses, or physiopathological aggressions on cells including a water-alcohol extract of red algae, taurine and derivatives: about 1 to about 5%, floridoside and derivatives: about 10 to about 25%, one or more of carotenoids and PUFAs, one or more water-soluble vitamins, one or more free amino acids and derivatives, and one or more pigments; and a method of protecting skin against wrinkle formation including administering a therapeutically effective amount of a composition including a water-alcohol extract of red algae that induces synthesis of stress protective proteins during physical or physiological stresses, or physiopathological aggressions on skin cells.