Probiotics can be beneficial to dogs of all ages to aid digestive function. However giving probiotics to young puppies under 6 months old could overload their intestines with bacteria, possibly leading to stomach upset. If you would like to start giving your young puppy probiotics we would advise you to consult your vet first. If you proceed with giving probiotics to a young puppy then you should follow the dose based on weight - 1 tablet per 10kg of weight.