We recently got a (supposedly) 4 month old female foster kitten. She is sweet but severely emaciated. Her records indicate her body is skeletal. At the moment, we are feeding her two variety of food blended with water - Purina One Healthy Kitten for nutrition and Fancy Feast Tender Chicken Feast Kitten for caloric intake. She eats well and is otherwise happy. Is there anything else I can supplement her with? She was considered too small for a spay as well and was indeed wormy but has been dewormed. She was the smallest in the litter of 4.