Originally Posted by
Emperor Ryker
No one uses percentages anymore, because it's outdated and irrelevant. All that matters is the absolute intake or how it relates to body weight or lean body mass. Protein recommendations are given in g/lb of LBM or BW, and the same goes for fat. Carbs don't really have an optimal intake.
Someone already suggested Lyle McDonald above, so read this article of his on why setting up a diet based on macronutrient ratios is a mistake:
Diet Percentages: Part 2 : Bodyrecomposition.
It's just math man. Macro ratios are useful for many who find it easier to imagine ratios vs grams. Many others, such as you, prefer using grams. No big deal. You can convert any macro ratio to a gram amount by multiplying. You obviously have to combine macro ratios with total caloric intake to get an absolute amount.