 The sulfur-containing amino acid, taurine, is primarily found in meat and dairy products and assists in the uptake of calcium into cardiac cells, thus associated with proper myocardial functioning.Taurine is considered conditionally essential for dogs because they are able to synthesize it themselves when adequate concentrations of the other sulphur containing amino acids, methionine and cysteine, are consumed.A low amount of sulphuric amino acids have been linked to decreased food intake, a negative nitrogen balance, and in growing dogs, stunted growth rate.