Hi, unfortunately I think the main question should be: Did he have a bone marrow biopsy
recently? In other words, has the cancer invaded his marrow to the extent that normal production of blood cells has been crowded out...
Iron from food generally might take a long time to help in increasing Hgb. There was some supplement to increase platelets, I can't recall though. They'd know on an ITP group (thrombocytopenia). None of those things would have a strong effect, sorry to say. Most of it would be false promises.