The most sovereign way to get vitamin D is by generating it yourself. That can be accomplished by allowing UV light to hit your skin, which triggers a reaction that converts cholesterol into vitamin D, among other effects. This should immediately make you do a hard stop and ask why the dermatologist and the ophthalmologist are telling us to avoid UV light. High cholesterol may be a biomarker of insufficient sunlight, and when cholesterol is not being converted into vitamin D through this sunlight-driven process, we see the emergence of what we call disease.