The phrase "nutrient levels" refers to the amount of important substances, called nutrients, that are present in something we consume, like food or beverages. Full definition
High nutrient levels in lakes and other bodies of water are primarily a result of human industrial practices. (treehugger.com)
They also contain much higher nutrient levels than grains / sugars and have a cleansing effect on the body. (wellnessmama.com)
Puppies become adults at 12 months of age and should transition to an adult dog food to ensure they are receiving proper nutrient levels for adult dogs. (redbarninc.com)