While almost every company selling these tests calculates biological age based on a different methodology, Function Health relies on Phenotypic Age, which is an assessment of biomarkers such as albumin, creatinine, glucose, and mean cell volume. While I was initially skeptical, it turns out the Phenotypic Age calculation appears to have a strong scientific basis, drawing from established research in the field of biological aging.
While almost every company selling these tests calculates biological age based on a different methodology, Function Health relies on Phenotypic Age, which is an assessment of biomarkers such as albumin, creatinine, glucose, and mean cell volume. While I was initially skeptical, it turns out the Phenotypic Age calculation appears to have a strong scientific basis, drawing from established research in the field of biological aging.
https://ramkrishnan.substack.com/p/beyond-annual-checkups-why-regular