Originally Posted by Webfoot Hero
Phelps' diet was more of a balance between carbs, fats, and protein while the ones the Marvel actors go on is very heavy on protein and low on carbs. I remember both Hemsworth and Evans talking about all the chicken breasts and protein shakes they had to consume before filming their movies.
Yeah, because Phelps does almost nothing but cardio basically every day.
Whereas the actors will just try to pack on lean mass and probably are doing mostly really tedious lifting, and not much cardio. Would defeat the purpose.