Product for feeding dogs affected by leishmania, which comprises one or more protein sources and one or more phytotherapeutic extracts, and it is characterized in that the protein source comprises one or more protein hydrolysates and the phytotherapeutic extract is a phytotherapeutic extract of Piper nigrum. The protein hydrolysates are comprised in the product for feeding dogs in a percentage by weight comprised between 5% and 18% and the phytotherapeutic extract of Piper nigrum is comprised in the product for feeding dogs in a percentage by weight comprised between 0.0015% and 0.0035%.