Selenium is an important micronutrient that plays a role in the functioning of different antioxidants, enzymes, and other proteins in the body. It also supports hormone production in the thyroid.1, 2
Selenium intake in Finland
The selenium content of food depends on where it is grown. The soil in Finland is naturally poor in selenium, which is why selenium is added into fertilizers. Thanks to this, Finnish people generally get enough selenium from their diet. Grains are the most important source of selenium in the vegan diet. However, it is good to keep in mind that organic farming does not use selenium-enriched fertilizer, and therefore selenium intake may be insufficient for people whose diet consists mainly of organic products3.
Recommendations and safe intake
According to Finnish nutritional recommendations, sufficient intake of selenium for adult women is 75 µg per day, and for men 90 µg per day. Prolonged intake of more than 225 µg in adults may be detrimental to health4.
Brazil nuts are an easy way of getting the recommended amount of selenium – 10 nuts per week is enough to cover the body’s needs. However, due to their high selenium content, it is not recommended to regularly eat more than 2 to 3 Brazil nuts per day4.
Good sources of selenium include5:
| Source of selenium | µg per 100 g | Typical portion size | µg per portion |
| Brazil nuts | 1917 | 7 g | 134 |
| Sesame seeds, hulled | 85 | 1 tablespoon | 7 |
| Chia seeds | 32 | 1 tablespoon | 3 |
| Hemp seeds, hulled | 25 | 1 tablespoon | 3 |
| Chanterelles, cooked | 22 | 1 deciliter (80 g) | 18 |
| Tofu, firm | 17 | 150 g | 26 |
| Sunflower seeds | 15 | 1 tablespoon | 2 |
| Cashew nuts | 11 | 1 tablespoon | 1 |
| Rutabagas/swedes, beetroots, parsnips, celeriac, black salsify | 10 | 60 g | 6 |
| Cabbages ja green leafy vegetables | 10 | 50 g | 5 |
| Whole-grain rice | 9 | 110 g | 10 |
| Bread | 3-9 | 1 slice | 1-4 |
An example of how to get the recommended daily amount of selenium5:
| Meal | Food and drink | Amount | Selenium, µg |
| Breakfast | Oatmeal | 1 deciliter dry oats | 3,6 |
| Chia seeds | 1 tablespoon | 3,2 | |
| Oat milk, fortified | 2 deciliters | 2,2 | |
| Tahini (sesame seed paste) | 1 tablespoon | 7,4 | |
| Lunch | Fried tofu | 150 g | 26,1 |
| Whole-grain rice, cooked | 1,5 deciliters | 11,1 | |
| Broccoli, cooked | 1 deciliter | 5,5 | |
| Afternoon snack | Cashew nuts | 2 tablespoons | 2,0 |
| Dinner | Root vegetables (rutabaga/beets/parsnips) | 150 g | 15,3 |
| Green beans, cooked | 1 deciliter | 1,5 | |
| Champignons, cooked | 0,5 deciliter | 5,3 | |
| Evening snack | Whole-grain rye bread | 2 slices | 2,3 |
| Hummus | 2 tablespoons | 0,9 | |
| Spinach | 1 deciliter | 5,0 | |
| Total selenium | 91,4 |
Vegan multivitamin supplements usually contain selenium. For example, the VEG1 multivitamin contains 60 µg of selenium, which covers most of the daily recommended intake (75 µg for women, 90 µg for men), and together with dietary sources of selenium helps secure adequate intake.
