Forgot to add that boiled noodles added in a meal every other day will help with the carbs, and help them maintain energy, in return have excess energy which in return will lead to excess weight.
Dogs don't have the same digestive system we do. Noodles and pastas will not have the same nutritional value to them because their digestive track is not designed for breaking down and use this type of complex carbohydrates. They make use of simple carbohydrates though. What we know about our own digestive systems does not closely mimic that of dogs and thus lots of things like this are done with really good intentions but have little nutritional value to a dog.
C-O-R-R-E-C-T. k9's do not have access to carbohydrates in the wild. Therefore, they were designed and have evolved to thrive on a diet of protein, fat and bone. What K9's use for energy is animal fat. Their systems are designed to run on fat for energy, this is where they get their fuel. K9's produce energy from protein, fat and bone through a process called gluconeogenesis. When you feed a K9 carbs, it alters the way their body is designed to produce energy. However, K9's will use and burn the carbs, it's jut not a natural process. It is correct that carbs have little nutritional value to dogs. However, if you did give the dog some noodles, it won't hurt them in any way. It's just not as much bang for the buck as using fat.