As she states, you can add these amino acids to kibble, but it doesnt compare to getting them from a fresh source. They are plentiful in beef, lamb, and pork heart, among other meats. Olson also recommends adding DMG (dimethylglycine) to your dogs diet: [DMG] is an amino acid that comes from glycine. It is thought to help the immune system, enhance memory, and may slow down the rate of seizure activity.