Every product below is graded on the strength of real human and mechanistic research and linked to its primary PubMed citations — independent of affiliate commissions. 10 products.
16 PubMed citations
Across large prospective cohorts and meta-analyses, lower grip strength is consistently associated…
17 PubMed citations
Across large studies, dysregulated cortisol patterns track with worse health: a meta-analysis…
22 PubMed citations
Large prospective cohorts and meta-analyses consistently link higher serum GGT, even within the…
16 PubMed citations
Higher fasting insulin and HOMA-IR reflect greater insulin resistance, a central feature of…
19 PubMed citations
Across large prospective cohorts and meta-analyses, higher hs-CRP is consistently associated with…
22 PubMed citations
In prospective cohort studies and pooled analyses spanning dozens of cohorts, higher blood levels…
18 PubMed citations
Iron status has a U-shaped relationship with health: iron deficiency (low ferritin) is a leading…
18 PubMed citations
Across large cohorts and meta-analyses, cystatin C-based eGFR is at least as accurate as…
19 PubMed citations
Large meta-analyses, prospective cohorts, and Mendelian randomization studies establish elevated…
18 PubMed citations
Large Mendelian randomization studies, prospective cohorts and meta-analyses — in one pooling of…