FYI....My H eats constantly and is also skinny as a rail....45yrs old, I belive he must consume something close to what your H does as well. However my H's eating habits really are pretty poor...he doesn't eat on a regular basis, eats ice cream every night right before bed, drinks beer fairly regularly (no not an alcoholic)...favorite snack is popcorn or potatoe chips etc. All of his tests came back with him perfectly normal though....which was in a way kind of frustrating....I think I had built my hopes up that we'd find something we could treat that would magically cure our problem.