Yes, I'm not questioning whether we burn amino acids in general. I'm questioning whether those with connective tissue degradation are preferentially burning the amino acids found in higher amounts
in connective tissue specifically. As
@Rufous McKinney alluded to, there are some amino acids that predominate in connective tissues and some amino acids that predominate in muscle. My muscles don't seem to be affected nearly as much as my connective tissue is, hence the speculation that I may catabolize more of the amino acids found in connective tissue.
However, there's also the possibility that connective tissue is being degraded by inflammatory cytokines upregulating matrix metalloproteinases (MMPs). Research seems to indicate that MMPs play a role in gum disease.
Maybe there are those who preferentially burn muscle, those who preferentially burn connective tissue and those who preferentially burn serum amino acids and proteins (such as albumin) with probably some degree of overlap?
@BadBadBear , I'm curious - do you have elevated C-reactive protein (CRP) concurrently with low albumin? I think that, when CRP goes up, albumin goes down (if I'm remembering correctly). I think maybe that would indicate that your albumin is low from decreased production in the liver due to inflammation and not necessarily from being burned for energy?
What I would really love to know is if my connective tissue degradation is caused by catabolism simply because fat/carb metabolism is impaired or if it is caused by inflammation, but maybe these are 2 sides of the same coin? Maybe connective tissue is degraded by MMPs so the amino acids can be burned? Maybe these enzymes are ubiquitous in many disease states? What purpose do MMPs serve? I just don't know enough about this topic yet.