Ironically, the thing we've been told to cut out of our diet for the last 50 years might be what we've needed all along. Vitamin D is fat soluble and generated

Ironically, the thing we've been told to cut out of our diet for the last 50 years might be what we've needed all along. Vitamin D is fat soluble and generated by sunlight. Lard from a factory raised hog is going to have almost 0 IUs of Vitamin D. However, if you raise hogs on pasture with access to regular sunlight, their lard becomes highly enriched with Vitamin D. We raise hogs and render our own lard and use it to cook with instead of fruit or seed oils. I've no empirical data as to the efficacy of such cooking, but I will say no one in our family has ever struggled with anything remotely resembling SAD, even living north of the 45 parallel.