– ““Nutrient deficiencies alter bodily functions and processes at the most basic cellular level,” says Tricia L. Psota, PhD, RDN, a lecturer in the exercise and nutrition sciences department at the George Washington University Milken Institute School of Public Health in Washington, DC. “These processes include water balance, enzyme function, nerve signaling, digestion, and metabolism. Resolving these deficiencies is important for optimal growth, development, and function.””