[frontman1988]

The best thing is to go out in the sun and soak in the required D. Shortcuts like vitamin pills will always have side effects.

[SoftTalker]

The sun causes cancer

Sunscreen is an endocrine disruptor

Vitamin D is an endocrine disruptor

You're fucked.

[user_7832]

On the bright side, being born is a death sentence! :)

On a more serious note, I suppose moderation is key. Sunlight as much as easily doable, sunscreen only on the face (and check between physical and chemical sunscreen), and if you’re still deficient then take a supplement.

[pizza234]

This is not possible in every country. In dark (e.g. northern european) countries, even children, who spent a significant time outdoors, need vitamin D supplementation.

[kadoban]

The Sun notably has no side effects?