You might have to eat more
The only studies I know of were done on lab mice by Dr. Elmer Shnitszalhausen. He took two groups of mice and had them do overhead presses. One Group was feed more mouse food than the other.
Amazingly over time the higher calorie group all produced bigger and stronger mouse deltoids while the lower calorie group made no significant progress. [/quote]
This study is clearly bad science. No data was reported about mouse body fat increase or the ratio of carbs/fats/proteins in the mouse food, or the recovery strategies of the mice. Furthermore, I would be inclined to believe that the mice who showed growth were just using large quantities of mouse roids.
I would like to see more studies by Dr. Elmer Shnitszalhausen before I believe that eating more food increases muscle mass.