Hello there. We have been feeding our dog with Brit Premium By Nature Sensitive Lamb and Rice for Adult Dogs of All Breeds for about 3weeks now. She is 11 months and 15 days old. She loves her food but she has lost 1.7kg since we started this food. We took her to hospital and gave her a check-up and everything was fine. On the feeding guide it says 250gr to 25kg body Weight. But she was 25kg when we started this food now she is 23.3kg. Should we feed her according to her current weight or adult weight?