@david.grimes74: 800 IU Was Never Enough. The old vitamin D math was wrong, and most people need far more D3 to reach even a basic level. Test yearly, ask your doctor about 50 to 100 ng/ml, pair D3 with K2. Book: THE SECRETS OF VITAMINS D3, K2 & B9, amazon.com/dp/B0HCXRXMLR (QR in image). Educational only. Talk to your doctor. #VitaminD #VitaminK2

Dr David Grimes

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Friday 23 October 2026 20:32:06 GMT