i saw your Vit. D video post, but haven't watched it yet, though I will. I have long been a believer in getting a good balance of the vitamins and nutrients in our diets, with as much as possible from fresh foods, and sunlight, but supplementing where needed. I will say one thing, and I am no doctor or nutritionist, and maybe
@Kieran can ask his missus, but one needs to be a bit cautious about over-dosing on the fat soluble vitamins, A, D, E and K. C, for example, is water soluble, and if you take too much, it's just excreted in urine. The fat soluble ones accumulate in the body, and can sit, for example, in the liver or kidneys. As I emphasize, I am no expert here, but I have long understood that there can be too much of a good thing of the fat soluble vitamins, so I'm just suggesting a bit of caution.