The term 'Liver Nutrient' can be summarized by the crossword solution of 'IRON', which is a 4-letter word. IRON is an essential mineral that is found in many foods and is necessary for the body to function properly. It is especially important for liver health, as it helps to produce hemoglobin, which carries oxygen throughout the body. IRON also helps to regulate the metabolism of fats and proteins in the liver. Without adequate IRON intake, the liver may not be able to perform its normal functions, leading to a variety of health problems.