special source of the mineral zinc

Pumpkin seeds have long been valued as a special source of the mineral zinc, and the World Health Organization recommends their consumption as a good way of obtaining this nutrient. To get full zinc benefits from your pumpkin seeds, you may want to consume them in unshelled form. Although recent studies have shown there to be little zinc in the shell itself (the shell is also called the seed coat or husk), there is a very thin layer directly beneath the shell called the endosperm envelope, and it is often pressed up very tightly against the seed coat. Zinc is especially concentrated in this endosperm envelope. Because it can be tricky to separate the endosperm envelope from the shell, eating the entire pumpkin seed