(Figures in International Units, recommended daily amount is 400IU)
1
Cod liver oil
![Top 10 most Vitamin D rich foods - cod liver oil](https://c02.purpledshub.com/uploads/sites/41/2018/08/untitled-dc6a7e7.jpg?webp=1&w=1200)
Per portion: 440 - Per 100g: 9,780
2
Salmon and mackerel
![Top 10 most Vitamin D rich foods - salmon and mackerel](https://c02.purpledshub.com/uploads/sites/41/2018/08/untitled-2-c530f80.jpg?webp=1&w=1200)
Per portion: 400 - Per 100g: 470
3
Tinned sardines
![Top 10 most Vitamin D rich foods - tinned sardines](https://c02.purpledshub.com/uploads/sites/41/2018/08/untitled-3-ce3af82.jpg?webp=1&w=1200)
Per portion: 270 - Per 100g: 270
4
Tinned tuna
![Top 10 most Vitamin D rich foods - tinned tuna](https://c02.purpledshub.com/uploads/sites/41/2018/08/untitled-4-83cb7f7.jpg?webp=1&w=1200)
Per portion: 154 - Per 100g: 181
5
Almond milk
![Top 10 most Vitamin D rich foods - almond milk](https://c02.purpledshub.com/uploads/sites/41/2018/08/untitled-5-bdfdfc3.jpg?webp=1&w=1200)
Per portion: 68 - Per 100g: 30
6
Breakfast cereal
![Top 10 most Vitamin D rich foods - breakfast cereal](https://c02.purpledshub.com/uploads/sites/41/2018/08/untitled-6-2e53764.jpg?webp=1&w=1200)
Per portion: 52 - Per 100g: 168
7
Eggs
![Top 10 most Vitamin D rich foods - eggs](https://c02.purpledshub.com/uploads/sites/41/2018/08/untitled-7-29a46fb.jpg?webp=1&w=1200)
Per portion: 41 - Per 100g: 73
8
Shiitake mushrooms
![Top 10 most Vitamin D rich foods - shiitake mushrooms](https://c02.purpledshub.com/uploads/sites/41/2018/08/untitled-8-f082c07.jpg?webp=1&w=1200)
Per portion: 40 - Per 100g: 53
9
Caviar
![Top 10 most Vitamin D rich foods - caviar](https://c02.purpledshub.com/uploads/sites/41/2018/08/untitled-9-1e864db.jpg?webp=1&w=1200)
Per portion: 33 - Per 100g: 116
10
Margarine
![Top 10 most Vitamin D rich foods - margarine](https://c02.purpledshub.com/uploads/sites/41/2018/08/untitled-10-7d777a9.jpg?webp=1&w=1200)
Per portion: 30 - Per 100g: 300
Subscribe to BBC Focus magazine for fascinating new Q&As every month and follow @sciencefocusQA on Twitter for your daily dose of fun science facts.