Nutrient Food Sources
Iodine
Iodine is needed for the production of thyroid hormones.
| Food Sources of iodine | Amount (µg per 100g) |
| Bread (fruited malt) | 27 |
| Butter | 38 |
| Cheddar cheese | 30 |
| Cow’s milk, skimmed | 30 |
| Egg | 54 |
| Fish, cod | 120 |
| Fish, halibut | 47 |
| Fish, mackerel | 170 |
| Fish, pilchards | 64 |
| Goat’s cheese | 51 |
| Iodised salt (salt is generally not iodised in the United Kingdom) | |
| Kelp (sea vegetable) | N/a |
| Lobster | 100 |
| Seaweed | N/a |
| Shellfish | 140 |
| Yoghurt | 63 |
(n/a = figures not yet available)
Source: McCance and Widdowson’s The Composition of Foods (6th Edition)