PURINA ONE Kitten with IMMUNE DEFENCE PLUS+ has been specially formulated with beta glucans, vitamin C & E and omega 3 & 6 fatty acids. Working in parallel, this blend supports first line immune defence for the healthy growth and development of your kitten:Vitamin E & C are natural antioxidants that help prevent cell damageassociated with aging and poor health Omega 3 & 6 fatty acids helps keep skin healthy to maintain a strong barrierto the external environment Beta glucans to help support optimal immune responseBy feeding PURINA ONE you are giving your kitten an optimal start to a longand healthy life