This is based on studies from China and the United States, which indicate that taking 800 µg does not cause adverse effects. Studies on native populations in Brazil. Studies carried out on native populations in the Brazilian Amazon region have found blood levels of selenium ranging from 103 to 1500 µg, with no signs or symptoms of selenium toxicity. So how many nuts are too many nuts? According to Healthline, although selenium in small amounts is beneficial, too much selenium can become toxic and begin to have adverse effects on the human body.
While a little can go a long way when it comes to Brazil nuts and the selenium they contain, eating too many Brazil nuts at one time can be dangerous and harmful to your health. Many of the health benefits of Brazil nuts come from their high selenium content. Although beneficial in small amounts, Brazil nuts can cause selenium toxicity if a person eats them regularly in large quantities. Do we start with the simple from the shocking? Brazil nuts can kill you.
Just one Brazil nut contains twice the daily recommended amount of selenium our body needs, and an overdose of selenium can have some very unpleasant side effects. Brazil nuts are good for you too. For example, New Zealand soil contains low levels of selenium, meaning that dietary intake and selenium levels are lower in New Zealand than in other countries. Brazil nuts are naturally rich in selenium, but are also found in seafood, poultry, eggs, and other plant sources, such as sunflower seeds and wheat germ.
A study published in the European Journal of Nutrition reported that eating one Brazil nut a day for 8 weeks reduced total cholesterol and fasting glucose levels in healthy adults. The recommendation of two Brazil nuts a day is a healthy amount for most adults, as it helps keep the thyroid happy and boosts immune functions. A single Brazil nut contains 68 to 91 micrograms (mcg) of selenium, meaning that just one nut per day can provide the recommended adult daily allowance of 55 mcg. There is no doubt that brown rice has a desirable nutritional profile, but one should not live on it.
In fact, the FDA advises us not to consume it more than twice a week, in addition to recommending that we cook brown rice in six times the normal amount of water to reduce arsenic levels by half. WebMD describes some signs of selenium toxicity to consider, such as gastrointestinal problems, brittle hair and nails, joint pain and tiredness, and reveals that, in the most serious cases, users have suffered from kidney failure, heart failure and heart attacks. Brazil nuts are among the best sources of natural selenium, an essential mineral known for its antioxidant properties. Nuts for Life is funded by the Hort Frontiers Food Security Fund & for health and nutrition, which is part of the Hort Frontiers strategic partnership initiative developed by Hort Innovation, with co-investment from the nut industry and contributions from the Australian Government.
More research is needed to discover how selenium affects cognition and determine if it could prevent or treat neurogenerative diseases. Alternatively, you can use chopped Brazil nuts as a nutritious topping for oatmeal, salads, or even brownies. According to the American College of Allergy, Asthma & Immunology, an estimated 25 to 40 percent of people who have a peanut allergy react to at least one type of tree nut. But did you know that these seemingly harmless and unpretentious nuts can actually endanger your health? Given their impressive nutritional profile, it's no wonder Brazil nuts have become so popular.
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