The best zinc rich foods are the foods of animal origin, especially certain types of shellfish, red meat and organ meats. People who eat any of these top animal foods at least several times a week are highly unlikely to develop even mild zinc deficiency.
Animal sources of zinc are considered superior and more bioavailable than zinc from plant sources because plants are high in phytates and oxalates which bind zinc and significantly reduce its absorption rates. This may lead to suboptimal zinc levels in vegetarians, vegans and those who rarely eat animal foods. More information on phytates and how to properly prepare grains, beans and nuts can be found in the Weston A. Price Foundation’s article Living With Phytates.
Since zinc is not stored well in the body, daily consumption with food is necessary. According to the Linus Pauling Institute, current recommended daily intake is 11 mg for men and 8 mg for women; zinc requirement increases to 12 mg/day in pregnant and breast-feeding women. Other sources list slightly higher recommendations: 15 mg for men and 12 mg for women; 15 mg a day for pregnant women and 19 mg for breast-feeding women. The table of zinc rich foods below is based on a 15 mg/day requirement.
The content of zinc in foods cannot be verified and should be regarded as the general guidelines only because there is no requirement to list zinc on nutrition labels, even though this trace mineral is crucial for maintaining immune health.
As with all the minerals, the exact amount of zinc in any particular food depends on the soil conditions, fertilizers and farming practices. The table does not include such foods as breakfast cereals or luncheon meats because these are processed foods of low nutritional value in general.
Note: this table is in a .jpg format. Feel free to save it on your device and refer to it when grocery shopping. I will be redoing most of the tables on the web-site in a .jpg format for easy access.
In addition, keep in mind the following facts about dietary zinc when trying to incorporate more of this glutathione cofactor into your diet: