# Why 80% of People Are Vitamin D Deficient (And Don't Know It)

Page: https://stenobird.com/podcast/fuel-different-7819549/why-80-of-people-are-vitamin-d-deficient-and-don-t-know-it
Text version: https://stenobird.com/podcast/fuel-different-7819549/why-80-of-people-are-vitamin-d-deficient-and-don-t-know-it.md
Podcast: [Fuel Different](https://stenobird.com/podcast/fuel-different-7819549)
Published: 2026-07-23T21:48:00+00:00
Episode link: https://traffic.megaphone.fm/PODAGEN9790726609.mp3?updated=1776259029
Audio file: https://traffic.megaphone.fm/PODAGEN9790726609.mp3?updated=1776259029
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JSON: https://stenobird.com/v1/public/podcasts/fuel-different-7819549/episodes/why-80-of-people-are-vitamin-d-deficient-and-don-t-know-it
Duration seconds: 809

## Resource

Want to know why you feel tired all the time despite "eating healthy"? Sarah Williams drops a truth bomb: 80% of people are walking around vitamin D deficient, and their doctors aren't catching it. In this episode of Fuel Different, Sarah breaks down why the "normal" ranges on your lab work might be keeping you sick. 🎯 What You'll Learn: • Why anything below 50 ng/mL is sabotaging your energy (even though labs say 30 is "fine") • The 1,000 IU rule that makes dosing vitamin D3 actually make sense • How 15 minutes of sun can give you more vitamin D than most supplements • Why northern cities see deficiency rates hit 80% in winter 👤 Perfect for: anyone who's been told their labs look "normal" but still feels awful, plus people ready to stop guessing about their vitamin D levels. 📍 Chapters: [00:00] Sarah Williams reveals why your "normal" lab results are lying [02:00] The shocking truth about vitamin D ranges doctors use [04:30] How much vitamin D you actually need (it's more than you think) [07:00] Sun vs supplements: what works better and when [09:30] Winter survival guide for vitamin D deficiency [11:00] Sarah's personal vitamin D disaster story 🔔 Never miss an episode: Follow Fuel Different on Spotify or Apple Podcasts and turn on notifications. New episodes drop daily, your next favorite insight is one tap away. 🔍 Topics: vitamin D deficiency, wellness, nutrition, energy levels, lab tests ---- Keywords: nutrition research, vitamin d, nutrition facts, preventive health Learn more about your ad choices. Visit megaphone.fm/adchoices

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## Transcript

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