Keep your dog busy by prolonging his mealtime with a number of interactive toys such as Kongs, treatballs, or Bustercubes (treats can be easily pushed in but will engage your dog for hours trying to get them out). Also try hiding part of his meal around the yard to stimulate his natural foraging instincts. Treats and toys are available at the RSPCA online shop.
Puppy Roundworms can infect humans. To prevent this infection, puppies should be wormed regularly throughout their first year of life, and owners should be thorough with their own personal hygiene after having interacted with the dog. Tapeworms, Hookworms, and Whipworms can also infect dogs, and your veterinary surgeon can advise when to worm the dog.