ビタミンDを食事で十分にとるのは基本無理。

あとは太陽を浴びること。

でも、私は在宅ワーカー10年以上。

ほぼ、一日中家の中にいます。

なので、ほとんど太陽をあびることがありませんso

結果、サプリメントを飲むことになったのです

Why I can’t get enough Vitamin D

We can’t get enough vitamin D from foods.

Eating mushrooms and fish can’t get enough Vitamin D 

another way ,soaking up the sun but

I have worked at home more than for ten years

I stay at home all day

so I can’t soak up the sun

I almost never get sunlight, because I stay at home almost through a day.

I have been working from home since more than ten years ago.

by the way I take supplements

This is why I’m lack of vitamin d, and ended up with taking supplements.