Foods rich in selenium in daily life include crabs, flower nails and tuna. 1. Crab belongs to a common food which has a high selenium content of 82.65 mcg/1000g. In addition, other nutrients in crabs include protein, carbohydrates, cholesterol, and vitamin B₁₂. 2. Flower nails, also known as flower clams, are also rich in selenium at 77.1 μg/1000 g. They also contain protein, cholesterol, and iron, among other nutrients. 3. Tuna is rich in selenium at 108.2 micrograms/1000 grams, ranking high among similar foods, as well as protein, cholesterol, and nutrients such as niacin. All of the above foods are rich in selenium, moderate consumption of the body has a certain nutritional value, but the above food allergies are not recommended for people to eat.