Amyotrophic lateral sclerosis (ALS) is associated with high risk of malnutrition. Due to changing disease status diet modification may need to be done frequently. To maintain energy level good nutrition plays vital role. Patient can become deprived of proteins, calories and vitamins very quickly because of feeding difficulties. Early nutritional assessment and intervention is important to prevent malnutrition and enhance quality of life. A Nutritionist can be a great help in planning a balanced diet & suggest modification according to status of swallowing & other complications.