how does alcohol cause malnutrition
The Effects of Malnutrition & Alcoholism. Alcoholism contributes to malnutrition by displacing nourishing food and altering metabolism. Alcoholism contributes to malnutrition by decreasing appetite and vital nutrients; drinking often serves as a substitute for meals, according to MayoClinic.com.lcoholism contributes to malnutrition by decreasing appetite and vital nutrients; drinking often serves as a substitute for meals, according to MayoClinic.com.