[PROBLEM] To provide a novel method for suppressing heatdiscoloration of lecithin and a novel lecithin or lecithinpreparation having resistance to heat discoloration.[SOLUTION] A method for suppressing heat discoloration oflecithin, comprising adding a fatty acid metal salt to lecithin,and a lecithin or lecithin preparation having resistance toheat discoloration and containing a fatty acid metal salt.Preferably, the metal constituting the fatty acid metal saltis at least one selected from the group consisting of lithium,beryllium, sodium, magnesium, aluminum, potassium, calcium,iron, cobalt, nickel, copper, zinc, silver, barium, thallium,and lead, and the fatty acid of the fatty acid metal salt isat least one selected from saturated fatty acids andunsaturated fatty acids having 3 to 36 carbon atoms.