Collagen is a standard connective tissue protein. You eat bucket a great deal of the stuff each time you chew on a pork chop or perhaps a cheeseburger. As different posters have alluded to, if you eat it the digestive course of dismantles the protein to its part amino acid elements, that are absorbed within the small bowel and transmitted to the liver the place they’re used for metabolism or despatched to different organs for anabolic course of, like tissue regeneration, restore and development. There isn’t any purpose why consuming collagen, per-se, ought to have any well being affect over and above that of the meals that comprises it.
In case you are asking about collagen injections for issues like anti-ageing and anti-wrinkle functions, that is a distinct matter. I am undecided what collagen mixtures are at the moment getting used however I’ve a obscure concept that animal proteins are used; whatever the supply I suppose there is a small danger of allergy or immune response to the preparations, which may be producing cytokines which are having these fatiguing results. That is purely hypothesis on my half, nonetheless.
Chris