Vitamin D and UV exposure

Clinical resourceProfessional clinical guidance

Source type: Clinical resource
Access type: Publisher
Publisher: American Academy of Dermatology
Added: 2026-07-01

Trust profile

VV Source Trust Matrix v1.0

VV Source Trust Matrix v1.0 asks whether this source is trustworthy for the claim lane being used, not whether every possible claim from it is equally strong.

Professional clinical guidance

Publisher type: Professional guidance
Bias profile: Moderate

This source is strongest for safety and consumer context and weaker for mechanism and trial discovery.

VV Source Fit Score 1.0

Fit by use case

Fit scores are role-specific. A source can be excellent for one claim lane and weak for another.

Frameworks ->

Regulatory status: 63/100; Context Source
Clinical outcomes: 78/100; Strong Support
Mechanism: 63/100; Context Source
Safety: 86/100; Strong Support
Consumer context: 82/100; Strong Support
Trial discovery: 63/100; Context Source

Best used for

Clinical context
Practice guidance

Weak for

Replacing primary evidence

Used in Viral Vitalism

Supporting evidencesignal8 references

Perineum Tanning Is WellnessTok Sunlight Logic Gone Feral

Roles: Supporting evidence

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Supporting evidencestudy1 reference

Roles: Supporting evidence

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AAD vitamin D statement

Claim ledger

Claims supported

Reviewed claim cards that cite this source in the evidence graph.

partly supported87/100

sunscreen: Real-world sunscreen use generally does not eliminate vitamin D

Real-world sunscreen use generally does not eliminate vitamin D status, and vitamin D can be addressed with testing, diet, fortified foods, or supplements instead of intentional tanning.

Strong human evidence3 sources

partly supported80/100

perineum tanning: There is no evidence that the perineum is a

There is no evidence that the perineum is a superior or necessary site for vitamin D production or sunlight benefits.

Insufficient evidence3 sources

partly supported80/100

perineum tanning: No credible clinical evidence shows that perineal UV exposure

No credible clinical evidence shows that perineal UV exposure improves hormones compared with ordinary daylight, sleep, exercise, nutrition, or correcting deficiency states.

Insufficient evidence2 sources

partly supported84/100

sun exposure: Sunlight is not always bad; ordinary daylight can support

Sunlight is not always bad; ordinary daylight can support circadian rhythm and vitamin D biology, but UV dose, timing, skin type, and burn avoidance matter.

Expert context3 sources