Teddy dogs are in the growth period from 3 to 6 months, and they grow the fastest at this time. Therefore, during this period, Teddy dogs need to be supplemented with nutrients, so that the dogs will grow even more. To be healthy and strong, you should also give your dog some lecithin and fish oil. The hair will be more shiny. And try to feed it in small amounts and often to avoid indigestion if the dog eats too much. Teddy dogs start to grow slower and slower when they are 8 to 10 months old, and there will basically not be much change after ten months.