Followed measuring & mixing instructions carefully, introduced to my dog gradually, only used about a quarter of the 24hr allowance over the period of one day and dog had violently ill with an upset tummy all night long! She is usually very tolerant and resilient never had an upset like this before. Should be more information on introducing gradually and a very small amount like a t-spoon with 500ml at first perhaps? She did love the taste though won't be continuing