A single meat source, complete pet food to help your dog calm & relax with: - 45% turkey (an L-Tryptophan-rich protein source), - Sweet potato (a great source of 'antistress' B vitamins), - Chamomile (a traditional relaxation aid), - L-Tryptophan (essential to form serotonin, the 'Feel Good' nourotransmitter), - Brewers Yeast (a rich source of 'antistress' B vitamins) and - Prebiotics and probiotics (to aid digestion, as digestive discomfort can cause dogs to become stressed).