Very Interesting article. Thank you Brian
Both my cardiologist and my endocrinologist are emphatic that I need to take 4000 IU of Vitamin D daily after they reviewed my first blood tests after cancer TX that my radiologist had recommended. It's great that there is a routine blood test that can accurately determine whether or not your diet or pills is giving you enough Vitamin D.
Many of us radiation survivors are extremely sensitive to sun damage on our skins so we can't rely on sunshine and being outdoors as that study mentioned since a really effective sunscreen also blocks the Vitamin D absorbtion effect.
None of my doctors saw any downsides nor had seen adverse effects of Vitamin D supplementation in their patients.
Charm