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*Selenium concentration of foods

From foods we can get selenium needed by the metabolism of human body. For your reference, the selenium concentrations of foods frequently taken by residents in our country are listed as follows:

Samples
Specifications
Samples
Specifications
Pork
106 g/kg.
Beef
43 g/kg.
Mutton
44 g/kg.
Eggs
233 g/kg.
Duck's eggs
307 g/kg.
Gooses eggs
336 g/kg.
Ginseng
150 g/kg.
Peanut
137 g/kg.
Mung bean
35 g/kg.
Rice
70 g/kg.
Flour
47 g/kg.
Maize
35 g/kg.
Apple
20 g/kg.
Milk
53 g/kg.
Sweet potato
35 g/kg.
   

Source: Sources of selenium in diet and their research and development
Note: The selenium concentration in a kind of food varies with area, because the selenium levels in the soil of different areas are different, which affects the absorption of selenium by plants and further the level of selenium in animal body. For example, the selenium concentration of plants in high selenium region (Enshi, Hubei Province) is dozens to hundreds times that of selenium deficient regions.