We went with a combination of beef lung bites, beef heart bites and lamb lung bites as all three varieties are small lean cuts that are lean and won't stuff in your pocket. So you don't have to have a guilty conscience or carry a bad smell with you during training.
Analytical components:
Crude protein 76.3% Crude fat 9.5% Crude ash 4.9% Crude fiber 7.3% Water content 1.8%
