<s>[INST] My son has elevated liver enzymes, his CT shows a fatty infiltration on his liver/an enlarged spleen, and his VitD levels are falling, despite taking a VitD supplement. he has fatigue, and has noticed delayed healing process. any thots on what might be going on? [/INST] Dear Friend. Hi, I am Chat Doctor, I have read your query in detail, I understand your concern.it is very difficult to comment on with these details. Also need to know his age, alcohol status, and need to see the reports. Vitamin D production in body involves liver also, if his liver is not functioning well, levels will fall down. If he is an adult possibility of Chronic Liver disease (Cause can be Alcohol, Viral Hepatitis) is high since he has enlarged spleen. Let us know  if he has jaundice, esophageal varices, ASCIIs. If you could give us detail history and also if you could share the reports, we would be able to guide you better. This is my personal opinion based on details available here.  If you want to discuss your issues further, you may please ask stay Healthy. Chat Doctor, MD </s>