Yes, sunshine is good, I tend to use sunblock only in extreme situations, when during holidays at the beech / on a boat at midday for example... Avoiding lot of sun between let say 11am and 3pm is usually enough...

Before taking D3, I remember having huge difficulties in spring, when I always got fast skin burns in the beginning. My skin always became very white (sensible) during winter. Now that I supplement, this process is way slower, it's not getting white as fast as then... I think whiter skin produces more D3, darker less... It's the way nature works... I guess people with dark skin have no such problems, be thankful about it!

BTW, not that it matters, I take liquid D3 and K2 (droplets) and not daily, but cummulating the days skipped...

Edit: most important thing I forgot, Robert Franz a well known Health Pioneer in German speaking region, compares D3 deficiency with a plant put into a cellar where the lack of light produces all sorts of maleficent growing things, the plant is stretching out in search for light... Just an illustration / comparison with cancer in humans... I guess there are many factors which can lead to it forming... As are many cures...

Yes, sunshine is good, I tend to use sunblock only in extreme situations, when during holidays at the beech / on a boat at midday for example... Avoiding lot of sun between let say 11am and 3pm is usually enough...

Before taking D3, I remember having huge difficulties in spring, when I always got fast skin burns in the beginning. My skin always became very white (sensible) during winter. Now that I supplement, this process is way slower, it's not getting white as fast as then... I think whiter skin produces more D3, darker less... It's the way nature works... I guess people with dark skin have no such problems, be thankful about it!

BTW, not that it matters, I take liquid D3 and K2 (droplets) and not daily, but cummulating the days skipped...