He asks: “Will Creator’s Antiviral Regimen efficacy improve significantly at vitamin D recommended levels of 40 to 60 ng/mL? Should vitamin K2 also be taken to boost absorption of vitamin D?” What can we tell him?

Here again is an example of why there needs to be a broad-based vitamin and mineral supplementation. If one wants to have an ideal nutritional foundation for healthy well‑being, the body needs many, many nutrients and there is a very complex interplay. A weak link, with respect to just one essential element, can have an impact over time.