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Sure, however, if you do this, then maybe you can also supplement with Astaxanthin (2mg-4mg?) to help protect the body against sunburn (and other sun exposure related issues). Also, if you go this route, you should definitely get blood tests to verify that sun exposure has in fact increased vitamin D levels to the desired range (40-60 ng/ml, with 50 often being mentioned as an "ideal").

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Astaxanthin can be obtained naturally as well. Wild salmon. Emphasis on wild, not farmed. One of the reasons wild salmon have a bright red pigment is because of the astaxanthin.

While we're on subject, wild salmon has one of the highest VitaminD counts of all food. One 3oz serving = 500IU. Probably in the top-three healthiest foods on Planet Earth (if you can even make such a criteria)

Yes, but it's not likely one will be able to get sufficient amounts from natural sources each day. That is, the typical approach is to supplement with 8mg, 12mg, or even 16mg/day for 12 weeks (to saturate the body), then with 2mg or 4mg/day thereafter.

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