Dr Ford Brewer - PrevMed

Over 50 Watch This Before You Take Another Vitamin D Pill - Ford Brewer MD MPH (PrevMed Health)

Sep 12, 2025
The discussion dives deep into the controversial recommendations around vitamin D3 intake, spotlighting a cautionary tale of a man whose overuse led to severe health issues. It examines the crucial balance of vitamin D's benefits for mental health and metabolic diseases against the dangers of excessive dosing. There's a focus on the impact of a keto diet on blood sugar control, along with the new supplement line that emphasizes well-researched formulations. Ultimately, it's about personalized health strategies and the importance of proper monitoring.
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ADVICE

Test Before Escalating Vitamin D

  • Start modest supplementation (Dr. Brewer suggested ~5,000 IU) and check a serum 25‑hydroxyvitamin D level.
  • Monitor labs and adjust dose instead of guessing or using very high doses long‑term.
ANECDOTE

High‑Dose D3 Caused Acute Kidney Injury

  • Mr. Singh self-injected 50,000 IU vitamin D weekly for a year and felt better initially.
  • He developed nausea, vomiting, confusion, creatinine 5.1 and calcium 14.4 mg/dL requiring ER care and stopping D3.
ANECDOTE

Clinical Cases Of D3 Overdose Harm

  • A functional medicine doctor lost his license after a patient died from vitamin D‑related kidneys issues.
  • Dr. Brewer also saw patients with serum D at 115–125 ng/mL who developed kidney damage that improved when D stopped.
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