A co-salt comprised of: a fatty acid salt component, comprising at least one fatty acid anion, wherein said fatty acid anion comprises at least one omega-3 fatty acid or at least one omega-6 fatty acid; and a non-fatty acid salt component, comprising at least one non-fatty acid co-anion; the co-salt being granular and free flowing; the co-salt having at least one of an infrared spectra or an x-ray diffraction pattern in which characteristic modes for the co-salt in the infrared spectra or the x-ray diffraction pattern are shifted relative to the corresponding characteristic modes or pattern for an admixture of the fatty acid salt and co-anion salt of the co-salt; wherein said co-salt contains at least one divalent cation which is ionically bonded with the fatty acid anion and the non-fatty acid co-anion; wherein said at least one co-anion is chosen from the group consisting of citric acid, lactic acid, phosphoric acid, fumaric acid, malic acid, gluconic acid, acetic acid, ascorbic acid, aspartic acid, carbonic acid, sulfuric acid, formic acid, propionic acid, succinic acid, adipic acid, salicyclic acid, benzoic acid, phthalic acid, maleic acid, malonic acid, pyruvic acid, sorbic acid, caprylic acid, glutaric acid, pimelic acid, glucoheptanoic acid, glycerophosphoric acid, glutamic acid, glutathione, lecithin, phenylalanine, valine, leucine, isoleucine, threonine, methionine, lysine, arginine, histidine and combinations thereof; and wherein said at least one divalent cation is chosen from the group consisting of calcium, magnesium, zinc, iron, manganese, copper, and combinations thereof. a fatty acid salt component, comprising at least one fatty acid anion, wherein said fatty acid anion comprises at least one omega-3 fatty acid or at least one omega-6 fatty acid; and a non-fatty acid salt component, comprising at least one non-fatty acid co-anion; the co-salt being granular and free flowing; the co-salt having at least one of an infrared spectra or an x-ray diffraction pattern in which characteristic modes for the co-salt in the infrared spectra or the x-ray diffraction pattern are shifted relative to the corresponding characteristic modes or pattern for an admixture of the fatty acid salt and co-anion salt of the co-salt; wherein said co-salt contains at least one divalent cation which is ionically bonded with the fatty acid anion and the non-fatty acid co-anion; wherein said at least one co-anion is chosen from the group consisting of citric acid, lactic acid, phosphoric acid, fumaric acid, malic acid, gluconic acid, acetic acid, ascorbic acid, aspartic acid, carbonic acid, sulfuric acid, formic acid, propionic acid, succinic acid, adipic acid, salicyclic acid, benzoic acid, phthalic acid, maleic acid, malonic acid, pyruvic acid, sorbic acid, caprylic acid, glutaric acid, pimelic acid, glucoheptanoic acid, glycerophosphoric acid, glutamic acid, glutathione, lecithin, phenylalanine, valine, leucine, isoleucine, threonine, methionine, lysine, arginine, histidine and combinations thereof; and wherein said at least one divalent cation is chosen from the group consisting of calcium, magnesium, zinc, iron, manganese, copper, and combinations thereof.