Nut & Seed · ingredient guide
Brazil nuts
Large tree nuts that are the single richest food source of selenium — so rich that just one or two a day can meet your needs.
Key nutrients
- Selenium
- Healthy fats
- Protein
- Magnesium
- Vitamin E
Why it helps at midlife
Selenium supports normal thyroid function and antioxidant defenses, and Brazil nuts supply it in abundance — helpful for women mindful of thyroid health in midlife. The important caveat is that selenium has a tolerable upper limit (about 400 mcg/day for adults), and a single Brazil nut can contain 68–91 mcg, so a small handful can push you toward excess. Too much selenium over time causes selenosis (hair loss, brittle nails, GI upset). Keep to about 1–2 nuts a day; more is not better.
Food supports overall health — it doesn't treat or cure any condition. Talk to your clinician about symptoms, supplements, or a diagnosis.
How to use it
- Eat just one or two a day as a selenium top-up.
- Chop a single nut over yogurt, oatmeal or a salad.
- Keep them out of grab-by-the-handful snack mixes.
Good to know
- Cap intake at roughly 1–2 Brazil nuts daily — this is a food where more is genuinely worse.
- If you already take a selenium supplement, you likely don't need Brazil nuts too.
Recipes that use it
Frequently asked questions
About one or two. They're so concentrated in selenium that a few nuts can approach or exceed the safe upper limit of 400 mcg/day, and chronic excess causes selenosis.