Thank you for that information. I too have vitamin D deficiency and I live in California. I grew up in Minnesota where everyone had vitamin D problems. I remember I had to take cod liver oil as a kid which is a natural source of vitamin D. I am going to start that again, and I found one online that should not taste as bad so am sending that info.
https://www.vitacost.com/nordic-naturals-arctic-d-cod-liver-oil-lemon-8-fl-oz