Last month I changed Phene's and Treasure's food to Holistic Select Chicken and Rice from California Natural Chicken and Rice. Although I feed them more of the Holistic Select then I did California Natural, today a friend noticed that they look like they've lost weigh, and I agree. The same thing happened last year when I tried changing food. Is it normal for a dog to lose weight when the food is changed? Should their weight increase once their bodies get used to it? Does anybody have any suggestions besides maybe increasing the amount I feed them?
thanks