Most of us only get about 10% of our daily requirement from food as Vitamin D is mainly found in oily fish e.g. salmon. The table below shows the dietary sources of Vitamin D.
| Source | Vitamin D content |
|---|---|
| Salmon (fresh wild caught) | 600-1000 IU per 100g |
| Salmon (fresh farmed) | 100-250 IU per 100g |
| Salmon (canned) | 300-600 IU per 100g |
| Sardines (canned) | 100-250 IU per 100g |
| Tuna (canned) | 236 IU per 100g |
| Egg yolk | 20 IU per yolk |
Source: Holick MF (2007), Vitamin D deficiency. N Eng J Med 357:266-281