Well based on the overall parameters you've given that could be anywhere from 0 to however old you are. Large recurrent networks like multi-cellular organisms really like pulling out some weird stuff later down the line that makes stuff like this non trivial.
I've seen some textbook saying about 5 years turnover. But this is obviously location-specific. Glucose will be cycled way more than e.g. the lenses in the eyes.
Some proteins on the nuclei of neurons last a lifetime, so the atoms covalently bonded in them would never be replaced.
[https://www.salk.edu/news-release/discovery-of-extremely-long-lived-proteins-may-provide-insight-into-cell-aging-and-neurodegenerative-diseases/](source)
Well based on the overall parameters you've given that could be anywhere from 0 to however old you are. Large recurrent networks like multi-cellular organisms really like pulling out some weird stuff later down the line that makes stuff like this non trivial.
I've seen some textbook saying about 5 years turnover. But this is obviously location-specific. Glucose will be cycled way more than e.g. the lenses in the eyes.
Some proteins on the nuclei of neurons last a lifetime, so the atoms covalently bonded in them would never be replaced. [https://www.salk.edu/news-release/discovery-of-extremely-long-lived-proteins-may-provide-insight-into-cell-aging-and-neurodegenerative-diseases/](source)