My diet is roughly 40% protein, 35% fat, 25% carbs. It’s extremely high in protein as I’m on a 20% calorie deficit, aiming for at least 1.2g protein per lb lean body weight, 35% fat preferring it to carbs and making up the remaining calories with carbs. I prefer fat over carbs as my body hangs on to carbs and doing a metabolic test was told I would be better with higher fat to carb ratio based on my stats and goal of getting leaner while maintaining muscle.
I’ve been planning meals using linear programming with the Simplex algorithm (https://en.wikipedia.org/wiki/Simplex_algorithm) to calculate the optimal ingredients/quantities to hit my macro goals while minimising total calories.
From playing about it’s impossible for me to hit my macro goals using a pure vegan/vegetarian whole food diet. To hit my protein goals my carb ratio would need to go way up and I’d then need to lower the fat percentage and even then I’d likely be in a caloric surplus. I could lower the protein proportion to try and hit the total calorie goal but then I’d likely be in a catabolic state and loose muscle mass.
I really wanted to eat less meat just for the fact meat costs more and as a plus eating less lowers my environmental impact. When plugging in the numbers with simplex it becomes very apparent it’s extremely hard to get the nutritional bang for your buck you get from meat. For the average person not interested in strength training or body fat percentage it’s probably not as big a deal but the fact remains it’s extremely hard to get specific macro targets without meat.