"Salt levels" refers to the amount of salt or sodium present in a food or liquid. It indicates how much salt is contained within a particular item or product. Full definition
The researchers also discovered that other stresses, such as altering salt levels in the shrimp tanks, cause them to become cloudy as well. (sciencemag.org)
Many supermarket and premium dog foods have relatively high salt levels. (2ndchance.info)
Indeed, they all showed that it really did not matter if these diets contained the standard dog and cat nutritional guidelines for salt or had reduced salt levels. (2ndchance.info)