Brazil nuts are large, nutrient-dense seeds harvested from the Brazil nut tree, a native of the Amazon rainforest. They are characterized by a hard, woody shell containing a creamy-white kernel that is a rich source of healthy fats, protein, and especially selenium, an essential mineral important for immune function and thyroid health. Brazil nuts are enjoyed as a snack and in various dishes, but due to their high calorie and fat content, they should be consumed in moderation
Nutritional highlights:
High in selenium: They are one of the best known dietary sources of selenium, a vital mineral for the body. 
Rich in healthy fats: Brazil nuts contain healthy fats, which are mostly unsaturated. 
Packed with other nutrients: They are also a good source of protein, fiber, magnesium, copper, zinc, vitamin E, and some B vitamins. 
Health benefits:
Immune system support:
Selenium and zinc, found in Brazil nuts, are crucial for a robust immune system. 
Thyroid health:
They provide the necessary selenium for the production of thyroid hormones. 
Antioxidant properties:
Brazil nuts contain phytonutrients with antioxidant activity that may help protect against certain chronic diseases.