So after the latest penguin update, do we need to watch keyword density for single keywords (say "fat") or just keywords as phrases (say "fat loss"). I ask because my page has a 7% KW density for "fat" but not that high for actual keywords I am trying to target (like "fat loss"). Could this negatively affect my rankings just because that one keyword "fat" is mentioned so many times? Any advice guys? Looking for help asap so if this is the case, I can go ahead and change around my website a little bit.