Endo Vit D Supp Over 75

---
name: endo-vit-d-supp-over-75
description: The skill suggests empiric vitamin D supplementation to lower mortality risk in adults aged 75 years and older. Use when a clinician inquires about vitamin D supplementation for patients aged 75 years or older to reduce mortality risk.
---

# Vitamin D supplementation for adults over 75

## STEP 1 — Gather Information
Collect patient age and assess for conditions that substantially alter vitamin D physiology (e.g., chronic kidney disease, granulomatous diseases, malabsorption) or established indications for vitamin D treatment/testing.

## STEP 2 — Rule In / Rule Out
If patient is aged ≥75 years and has no conditions altering vitamin D physiology or established indications for vitamin D treatment/testing, rule in for empiric vitamin D consideration; otherwise, rule out.

## STEP 3 — Classify or Stratify
Classify the patient as a candidate for daily lower-dose vitamin D supplementation (preferred regimen) over nondaily higher-dose dosing.

## STEP 4 — Decide
Recommend empiric vitamin D supplementation (e.g., 800–1000 IU daily) without serum 25(OH)D testing.

## Clinical Guardrails / Mimics / Pitfalls
Do not apply to patients with conditions that substantially alter vitamin D physiology (e.g., CKD stage 4-5, sarcoidosis). Do not use for mortality reduction in adults <75 years. Avoid relying on 25(OH)D testing; empiric supplementation is given without testing. Prefer daily lower-dose dosing; high bolus doses are not preferred if daily dosing is feasible. Do not confuse with DRI; this recommendation exceeds Dietary Reference Intakes. Optimal dose remains unclear; supplementation may come from fortified foods or supplements.

## Concrete Clinical Example
An 80-year-old woman with well-controlled hypertension asks about vitamin D to lower mortality risk. She has no conditions affecting vitamin D metabolism. Age ≥75, no contraindications identified. Recommend empiric vitamin D supplementation at 800–1000 IU daily without checking 25(OH)D level.

**Source:** Vitamin D for the Prevention of Disease: An Endocrine Society Clinical Practice Guideline, Endocrine Society, 2024, https://doi.org/10.1210/clinem/dgae290