Salt is in almost everything we eat. Whether you cook at home, eat at restaurants, or go with pre-made foods, you'll often find yourself faced with a situation where you are consuming a lot of salt. This can be a problem if you frequently have problems with calcium oxalate stones. Sodium is a contributor to the problem that is easily overlooked. For some people, it may be the main contributor of the stones. How it works is that consuming more sodium will result in you removing more of the calcium you consume through urine.