Hills metabolic weight management
My 15year old border was almost 12 kg. She is now 9kg, she lost this weight over three months.
She has more energy, goes for much longer walks, and is happier. The only problem is she produces so much fasces with this food she has accidents in doors and at night. She goes to toilet minimum of 5/6 a day. At least three times in an evening. Otherwise it would get 5 stars