葡萄糖酸锌的功效和作用是什么？

Zinc gluconate (also called zincum gluconicum) is the zinc salt of gluconic acid. It is an ionic compound consisting of two moles of gluconate for each mole of zinc. Zinc gluconate is a popular form for the delivery of zinc as a dietary supplement.Gluconic acid is found naturally, and is industrially manufactured by the fermentation of glucose, typically by Aspergillus niger, but also by other fungi, e.g. Penicillium, or by bacteria, e.g. Acetobacter, Pseudomonas and Gluconobacter. In its pure form, it is a white to off-white powder. It can also be manufactured by electrolytic oxidation, although this is a more expensive process. The advantages are a lower microbiological profile, and a more complete reaction, yielding a product with a longer shelf life.葡萄糖酸锌在具有以下功能的保健食品中使用过该原料（注：不代表该原料本身具有以下保健功能）,具有如下功能:
增强免疫力,缓解视疲劳,辅助改善记忆,缓解体力疲劳,改善生长发育,促进排铅,促进消化,提高缺氧耐受力,辅助降血糖,对化学性肝损伤有辅助保护功能,改善皮肤水份,改善营养性贫血,辅助降血脂,祛痤疮,通便,增加骨密度,抗氧化,祛黄褐斑,调节肠道菌群,减肥,对辐射危害有辅助保护功能,其中在优一牌钙铁锌咀嚼片,康琪壹佰牌锌软胶囊,益力健牌锌粉,中就有使用过该原料.
说明：以上对于原料功效的说明仅来源于其在对应保健食品中的运用，不代表该原料本身具有以下保健功能。