One will take both vitamin D and fish oil pills.

一组同时服用维生素D和鱼油丸；

youdao

Milk, oily fish and eggs all contain vitamin D.

牛奶、油性鱼类和鸡蛋全都含维他命D。

《柯林斯英汉双解大词典》

For Vitamin D, the best examples are fish, mushrooms and eggs and for vitamin E, nuts and seeds.

关于维生素 D，最好的例子是鱼、蘑菇和鸡蛋，而维生素 E 则是坚果和种子。

youdao

Fish liver oil also contains vitamin D.

VOA: special.2009.04.21

Certain dietary supplements such as vitamin D and fish oil have proven benefits, but others like bitter orange and vitamin B5 lack evidence.

CNN: Half of Americans use supplements

Users become color icons or, if you'd rather, 3-D characters such as fish or bunnies.

FORBES: Croquet, Everyone?

Sounds more like the kind of fish who'd be buying, not selling, SeaWorld stock.

WSJ: Blackstone and the 'Vampire Squid' Sell SeaWorld