目前常见的硫酸亚铁、葡萄糖酸亚铁、乳酸亚铁等补铁剂铁含量高，但是在体内的利用率较低，且有金属铁锈味，存在胃肠刺激，难以长期食用。针对这一现象，氨基酸铁及肽铁螯合物等新型补铁剂已成为目前关注及研究的热点，其中肽铁螯合物在机体内有着特殊的螯合机制和转运模式，能够通过多肽的转运系统直接被人体肠道吸收，与无机盐补铁剂相比，对人体刺激较小，具有生物利用率高、稳定性好以及低生物毒性等优点。多肽安全性较高、成本较低，且吸收速度快、能量消耗低，不仅具有抗氧化、预防机体衰老、降血脂等功能，还能与亚铁离子结合，形成肽铁螯合物，牛血红蛋白肽亚铁螯合物和燕麦多肽亚铁螯合物都通过体外消化实验、细胞实验、动物实验等方法表明两者均具有良好的消化稳定性及更高的生物利用度。因此，由于食源性肽铁螯合物兼具功能性和营养性，研究普遍认为肽铁螯合物是当前较为理想的新型补铁剂，极具发展潜力。

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抗坏血酸亚铁Ferrous Ascorbate、抗坏血酸锰Manganese Ascorbate、赖氨酸甘氨酸镁Magnesium Lysinate Glycinate、甘氨酸谷氨酰胺镁Magnesium Glycinate Glutamine、柠檬酸苹果酸镁Magnesium Citrate Malate、柠檬酸锶Strontium Citrate、柠檬酸锰Manganese Citrate、柠檬酸铜Copper Citrate、天门冬氨酸锂Lithium Aspartate、牛磺酸硒Selenium Taurate.

Effect of iron polypeptide on human absorption

At present, the common iron supplements such as ferrous sulfate, ferrous gluconate, and ferrous lactate have high iron content, but their utilization rate in the body is low, and they have metal rust taste, gastrointestinal irritation, and are difficult to eat for a long time. In response to this phenomenon, new iron supplements such as amino acid iron and peptide iron chelate have become the focus of current attention and research. Peptide iron chelate has a special chelating mechanism and transport mode in the body, and can be directly absorbed into the human intestine through the peptide transport system. Compared with inorganic salt iron supplement, it has less stimulation to the human body. It has the advantages of high bioavailability, good stability and low biotoxicity. Polypeptide has high safety, low cost, fast absorption rate and low energy consumption. It not only has the functions of anti-oxidation, preventing body aging and lowering blood lipids, but also can combine with ferrous ions to form peptide iron chelate. Both bovine hemoglobin peptide ferrous chelate and oat polypeptide ferrous chelate have good digestive stability and higher bioavailability through in vitro digestion experiment, cell experiment and animal experiment. Therefore, because of the functional and nutritional properties of foodborne peptide iron chelates, it is generally believed that peptide iron chelates are a relatively ideal new iron supplement at present and have great development potential.

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Ferrous Ascorbate, Manganese Ascorbate, Magnesium Lysinate Glycinate and Magnesium glutamine Glycinate Glutamine, Magnesium Citrate Malate, Strontium Citrate, Manganese Citrate, Copper Citrate, Lithium aspartate Aspartate, Selenium Taurate.