There are many strategies to work on teaching your dog to come to you faster when called. One of my favorites is to work on a distance "stay", and then ask the dog to "come".
Dog Training Blog
Want a fun training activity that you can practice inside and outside? Teach "Go Find Someone". The long-term goal is to ask your dog to find a family member by name and then your dog runs off and finds that person! If you are really savvy, you can combine it with a "Hold" and have your dog be the family messenger. Write a quick note to your son, 'Dinner in 5 minutes', give it to your dog and then say, "Go find Josh". Your dog will bring the note to Josh! How cool!
This is always a concern with dog guardians. Over-treating can lead to an overweight dog or intestinal difficulties if your dog is especially sensitive. Here are some tips to get your worries under control and avoid over-treating your pooch.