Growing kittens and adult cats will suffer from weakness of limbs, inability to walk, and severe paralysis due to long-term lack of vitamin B1. In this case, owners should immediately purchase pet vitamin B1 and feed it daily. Your pet will be able to resume walking after about a week of feeding, and your pet will be greatly improved after another month of continuous feeding. You can choose to feed it daily or intermittently to consolidate it according to your cat's condition.