It might be, but I know for sure that 80 grams is enough for me. My main goal now is to drop fat rapidly, even at the expense of losing a bit of muscle. And I'm not so worried about any lost muscle, coz I've discovered that any muscle that is lost from a rapid fat loss diet comes back very quickly once normal caloric intake is resumed. I'm trying something relatively new, which is a cycle diet similar to what Lyle McDonald recomends, so we'll see how it works out.