question: My 63 year old husband has just had a blood test result showing ALT level of 47.  His GP says this is 'slightly raised' and husband is now concerned.  He drinks 1 or 2 glasses of white wine per week, he is a Dartmoor guide so walks 6 - 8k 3 or 4 times each week.  He is fit and healthy otherwise with a good diet although eats a lot of red meat.  Should we be concerned?