Are de-stressing petfoods efficacious?

Our petfood expert Anton Beynen looks at the use of calming supplements in petfoods – do they actually make a difference to your pet? The marketplace offers food formulas that are advertised as able to relieve stress in dogs and cats. These calming foods contain added L-tryptophan and/or alpha-casozepine as the purported effective substances. Products for dogs are sold in both pet shops and veterinary clinics. Therapeutic foods for cats with idiopathic cystitis may feature de-stressing as