One size does not fit all: There are many whose insulin sensitivity isn't 110% and cannot and should not consume >75g carbs/day. Where do these folks fit in as far as recomping? At best, carb cycling? Perhaps those on AAS can consume larger amount of carbs because of increased insulin sensitivity from the drugs, but not someone who is natty and that may have some insulin resistance issues (more than half the population >40). Eating an excess of carbs will jack up insulin with the end resulting in excess bodyfat.
Also, does it makes sense with someone who has >18% bodyfat to be consuming >75g carbs daily if they desire to lose fat?
There is an extensive body of research from scientiists Phinney and Volek that dispute the notion that plenty of carbs are necessary for fuel for athletes and that fat is the primary fuel, basically a keto diet. They have found that fat is also more protein-sparing than carbs which flies in the face of prior studies. The idea is that you can "fat adapt" your body so that it preferentially burns fat stores, sparing protein. Their book, The Art and Science of Low Carbohydrate Performance goes into detail on this.
At the end of the day, there seems to be arguments on both ends; I'm just not sure which one is right.
That's why perhaps to err of the side of cautoin, one would do a CKD (cyclical keto diet) or TKD (targeted keto diet) which may be best methods because they incorporate the best of both arguments.
Here's some other interesting studies:
Very-low-carbohydrate diets and preservation of muscle mass
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"A subsequent study by Volek et al. using a VLCARB during energy-restriction noted a greater decrease in lean body mass in men
who consumed a VLCARB than in men won consumed a high-carbohydrate/low-fat diet. However, resting energy expenditure was maintained in men consuming the VLCARB but decreased on the high-carbohydrate/low-fat diet, strongly suggesting that the VLCARB group did not lose muscle mass."
Effects of dietary carbohydrate restriction with high protein intake on protein metabolism and the somatotropic axis.
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Thoughts?