[The Truth Will Make You Free]

And the best natural source of vitamin D is sunlight.

And except as you age. I've read that Vitamin D production goes down as you get older.

And except as your shadow is longer than you are tall. Another way of saying, "Except when you there is not enough seasonally available - usually when you need it most"

[aMorePerfectUnion]

--> And except as your shadow is longer than you are tall. Also, for everyone who the BMI chart says is too short!