More Muscle Mass = Greater Vitamin A Requirement?
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Muscle tissue synthesizes androgens. More muscle means more androgen synthesis. This is very well established. But it doesn;t happen in a vacuum. It happens in the mitochondria and requires specific inputs and conditions.
Let's assume that we have proper thyroid function, and adequate cholesterol. Vitamin A is now the limiting reactant. The more mitochondria in the muscle tissue, the greater the potential for androgen synthesis to be taking place. Many of us CO2maxx, generating even more mitochondria.
Following this, Vitamin A can be easily made deficient, especially if you don't tolerate carotene.
It would be useful to estimate Vitamin A requirement based on muscle mass and mitochondrial density but it is probably easier to simply eat liver several times a week. If you are lifting and CO2 maxxing it is difficult to consume too much vitamin A, and very easy to consume too little.
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@CheesedToPeatYou I think I heard Haidut say something about how a lot of co2 could replace the function of hormones (probably he meant the extremely importance of co2 in a high metabolism)
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That chart needs to be elucidated more. How much contribution does each offer? Is vitamin A a rate limiting step or just a small fuel to the already existing fire? Im also thinking retinol is cope. Beta carotene is safer than retinol as latter does not have regulatory systems in our body that manage levels. Excess just gets dumped in liver.
