I absolutely love the Vitamin D3+K2 — I’ve had a hard time finding anything as effective. Clients with levels in the 20s have climbed into the 70s-80s on the 10,000 IU dose, and DHEA patients who plateaued on other brands see real improvement at lower doses with Teton Naturals. It’s one of the few lines I put my name behind — no fillers, strict testing, real lab results to back it up, and priced fairly for what you get. I take it myself, my family’s on it, and so are most of my patients. Not switching anytime soon.