The Claim
Patients with type 2 diabetes and early-stage chronic kidney disease have median 25(OH)D levels below 18 ng/mL across all eGFR stages, with the lowest levels (13 ng/mL) observed in those with the most impaired kidney function.
What the research says
Supports is higher
Support is ahead, but a single strong opposing study can change this.
These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.
People with type 2 diabetes and early kidney disease consistently show low vitamin D levels in their blood, and the worse their kidney function, the lower their vitamin D levels tend to be.
See the scientific wording
Patients with type 2 diabetes and early-stage chronic kidney disease exhibit widespread vitamin D deficiency, with median 25(OH)D levels below 18 ng/mL across all eGFR stages and lowest in those with the most impaired kidney function (13 ng/mL), indicating vitamin D insufficiency is prevalent and worsens with disease progression.
As kidney function declines, the liver produces more vitamin D-binding protein, which traps most of the vitamin D in the blood so it cannot reach the kidneys or other tissues. This prevents the body from using vitamin D properly, causing levels to drop further as kidney damage worsens.
What the research says
1 studyPeople with type 2 diabetes and early kidney problems tend to have very low vitamin D levels, and the worse their kidneys are, the lower their vitamin D gets — and this study found exactly that.
Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting studies
Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.