Previously, I was very taken by the idea that you could use sun-exposed mushrooms to soak up and retain Vitamin D. It seemed like a great deal: you could sun-cure mushroom gills in the summer, and eat them all winter. Great!
However, the more I delved in, the more I realized what I should have remembered: animals > plants.
Mushroom-derived – or any plant-derived (D2) – Vitamin D will be less optimized for you than animal-derived (D3). D3 will absorb better; it will stay in your bloodstream significantly longer, and, as always, there’s likely a host of undiscovered benefits in addition. The only problem I have is that I can’t make animal-derived Vitamin D quite as easily – sunshine-raised pig lard has significant amounts, but sheep lanolin is the premium source. So, in this instance, I’ll probably just be buying sheep lanolin-derived Vitamin D instead of DIY’ing it from plant sources.
