A 62-year-old man with hepatitis B and decompensated cirrhosis was recently discharged from hospital following treatment of ascites. He received diuretics and was prescribed a low sodium diet. He comes in to see you for follow up and is alert and oriented, his body mass index is 21. He has temporal muscle wasting, mild scleral jaundice and muscle wasting in the upper extremities and thorax. He has no palpable ascites and no lower extremity edema. He has no signs of hepatic encephalopathy. His wife is concerned about the fact that he is very thin, and no nutritional recommendations were given to him. 

They both want to know what he should be eating. Which of the following is true?