Walnuts vs Brazil Nuts – Which is Healthier?

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Our Verdict

When comparing walnuts to Brazil nuts, we picked the walnuts.

Why?

Talking macros first, they are about equal in protein, carbs, fats, and fiber; their composition is almost identical in this regard. However, looking a little more closely at the fats, Brazil nuts have more than 2x the saturated fat, while walnuts have nearly 2x the polyunsaturated fat. So, we’ll declare the macros category a moderate win for walnuts.

The category of vitamins is not balanced; walnuts have more of vitamins A, B2, B3, B5, B6, B9, C, and choline, while Brazil nuts have more of vitamins B1 and E. A clear and easy win for walnuts.

The category of minerals is interesting, because of one mineral in particular. First let’s mention: walnuts have more iron and manganese, while Brazil nuts have more calcium, copper, magnesium, phosphorus, potassium, and selenium. Taken at face value, this is a clear win for Brazil nuts. However…

About that selenium… Specifically, it’s more than 391x higher, and a cup of Brazil nuts would give nearly 10,000x the recommended daily amount of selenium. Now, selenium is an essential mineral (needed for thyroid hormone production, for example), and at the RDA it’s good for good health. Your hair will be luscious and shiny. However, go much above that, and selenium toxicity becomes a thing, you may get sick, and it can cause your (luscious and shiny) hair to fall out. For this reason, it’s recommended to eat no more than 3–4 Brazil nuts per day.

There is one last consideration, and this is oxalates; walnuts are moderately high in oxalates (>50mg/100g) while Brazil nuts are very high in oxalates (>500mg/100g). This won’t affect most people at all, but if you have pre-existing kidney problems (including a history of kidney stones), you might want to go easy on oxalate-containing foods.

For most people, however, walnuts are a very healthy choice, and outshine Brazil nuts in most ways.

Want to learn more?

You might like to read:

Why You Should Diversify Your Nuts

Take care!

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