Science & Research

Most people taking vitamin D supplements are taking it without vitamin K2. This is a meaningful gap in their regimen, not because K2 makes D3 work better for its core functions, but because D3 without K2 has a specific unintended consequence that K2 directly prevents: inappropriate calcium deposition in soft tissue and arteries. What Vitamin … Read more

Vitamin D supplements are not all the same, even when the label says “vitamin D.” The two forms, D3 and D2, differ in origin, bioavailability, and how effectively they raise your blood levels. The difference matters, and it is consistently underappreciated by people choosing supplements. What Are D3 and D2? Vitamin D3 (cholecalciferol) is the … Read more