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对１９９５～１９９６年期间深圳市场上销售的部分保健食品共４３份，进行了铜、锌、铁、锰、铬、镍、锡、硒等８种微量元素含量的测试分析。结果表明，其中铜、锰、硒、铬、镍、锡６种元素的含量与普通食品中含量相比，处在同一数量级范围，锌与铁差异较大，含锌量最高者达１７１５×１０－６（即ｍｇ／Ｋｇ），含铁量最高者达２５５８×１０－６。我国大部分城镇居民有条件做到平衡膳食，能够从日常普通食品中获取足量的必需微量元素。富含微量元素的保健食品可作为一些特殊情况下机体补充营养素的一种方式，同时也应注意到某些保健食品中高含量微量元素可能引起的问题。
A total of 43 health food products sold in Shenzhen from 1995 to 1996 were tested and analyzed for the content of 8 trace elements including copper, zinc, iron, manganese, chromium, nickel, tin and selenium. The results showed that the contents of 6 elements of copper, manganese, selenium, chromium, nickel and tin were in the same order of magnitude compared with the content of common food, the difference between zinc and iron was large, and the highest content of zinc was 1715 × 10 -6 (ie mg / Kg), the highest iron content of 2558 × 10-6. Most of the urban residents in our country have the conditions to achieve a balanced diet and be able to obtain sufficient quantities of essential trace elements from daily ordinary foods. Dietary supplements containing micronutrients can be used as a means of supplementing the body with nutrients in special circumstances. At the same time, attention should be paid to the possible problems caused by the high levels of trace elements in some health foods.