Freeland-Graves J H, Ebangit M L, Bodzy P W
J Am Diet Assoc. 1980 Dec;77(6):648-54.
The zinc and copper content of seventy-four foods was determined by atomic absorption spectrophotometry. Each of these foods was reported to have been consumed by practicing vegetarians. Legumes, seeds, nuts, whole grains, hard cheeses, and some nutritional supplements were found to be excellent sources of both zinc and copper. Vegetables, fruits, and their products were generally poor sources of trace minerals, with the exception of seed and bean sprouts. Milk and milk products, including rennetless cheeses, contain small quantities of these minerals. Although many of the foods consumed by vegetarians do contain adequate amounts of zinc and copper, their bioavailability may be limited.
采用原子吸收分光光度法测定了74种食物的锌和铜含量。据报道，每一种此类食物都被素食者食用过。豆类、种子、坚果、全谷物、硬奶酪以及一些营养补充剂被发现是锌和铜的优质来源。蔬菜、水果及其制品通常是微量矿物质的不良来源，但种子和豆芽除外。牛奶及奶制品，包括无凝乳酶奶酪，含有少量这些矿物质。尽管素食者食用的许多食物确实含有足够量的锌和铜，但其生物利用率可能有限。
