What can you suggest as food supplement for 79 year old male with cll who has no appetite?

buddy, this is an Excelent tip for you : Get a medical prescription from you doctor, or simply ask for your pharmacist to tell you about these medicines : (Cobamamide, 1 mg,(This is the main medicine for you, take 2 mg after breakfast.) together with B complex, one tablet a day, not concentrated, 80 mg of vitamin C, 20 mg of vitamin E, and 5000 IU of vitamin A per day, after the main meal of the day. Before breakfast take a spoonful of red wine, if necessary diluate it in the same amount of water.

As food supplement I advice you to eat beetroot juice, strain it and drink at morning. Oat bran, soy, sesame, and flaxseed can be added to the beetroot juice. Drink it slowly during one hour at morning. Peel (skin) of bananas is a good source of potassium, and you must liquidize, use a strainer afterwards, two or three peels of bananas at the afternoon, strain it, use a few sugar, or sweetner, and drink a glass, slowly.

In time : I paid no attention to your health condition, the cll. Then, you must ask for a nurse or pharmacist's help about those medicines above before taking them.