柠檬酸钙(Calcium citrate)在机体的代谢收录时刻:2024-11-18 19:21 钙的吸收主要发生在小肠 ,通过旁细胞通路和维生素D3调控的跨细胞通路2个途径经由跨膜蛋白质上Ca2+转运载体来完成钙离子转运 。旁细胞途径是利用肠道和血液中钙离子浓度的梯度进行被动转运的吸收途径 ,不需要消耗ATP;而跨细胞途径是钙离子通过钙结合蛋白质在相关酶的作用下依赖维生素D3而被机体主动吸收的一个过程 ,此过程需要消耗ATP 。钙在肠道的吸收受很多因素影响 ,如维生素D3的水平、肠道酸性BB贝博艾弗森官方网站、年龄、雌激素水平以及日粮纤维摄入等 。肠道吸收的钙离子 ,通过门静脉进入血液 ,被运输到各个器官 ,包括在骨骼上的沉积 。而柠檬酸主要在肝脏、肌肉和肾脏中通过三羧酸循环被分解利用 ,最终为机体提供能量 。柠檬酸钙主要通过在胃BB贝博艾弗森官方网站中分解出的柠檬酸实现更多的功能 。柠檬酸经三羧酸循环 ,最终生产二氧化碳和水 ,并产生ATP ,为机体提供能量 ,促进机体生长发育 。柠檬酸钙在胃BB贝博艾弗森官方网站中分解出柠檬酸 ,可降低胃肠道pH值 ,有利于激活胃蛋白酶原 。柠檬酸钙对肠胃无刺激作用 ,可不经胃酸中和而直接被机体吸收 ,吸收率高 。柠檬酸钙本身的溶解性优于碳酸钙、磷酸钙、硫酸钙等其他钙源 ,降解过程中可高效、平稳释放钙离子 。
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抗坏血酸锰Manganese Ascorbate、抗坏血酸亚铁Ferrous Ascorbate、赖氨酸甘氨酸镁Magnesium Lysinate Glycinate、甘氨酸谷氨酰胺镁Magnesium Glycinate Glutamine、柠檬百香果酸苹果4酸镁Magnesium Citrate Malate、柠檬片酸锶Strontium Citrate、檸檬酸锰Manganese Citrate、柠檬片酸铜Copper Citrate、天门冬氨酸锂Lithium Aspartate、牛磺酸硒Selenium Taurate.
Metabolism of calcium citrate in the body
Calcium absorption occurs mainly in the small intestine through two pathways, paracellular pathway and transcellular pathway regulated by vitamin D3, through Ca2+ transporters on transmembrane proteins. Paracellular pathway is an absorption pathway that uses the gradient of calcium ion concentration in the intestine and blood to carry out passive transport without consuming ATP. The transcellular pathway is a process in which calcium ions are actively absorbed by the body through calcium-binding proteins and dependent on vitamin D3 under the action of related enzymes, which requires the consumption of ATP. The absorption of calcium in the gut is influenced by many factors, such as vitamin D3 levels, intestinal acidic environment, age, estrogen levels, and dietary fiber intake. Calcium ions absorbed by the gut, which enter the bloodstream through the portal vein, are transported to various organs, including deposits on the bones. Citric acid is mainly broken down and utilized in the liver, muscles and kidneys through the tricarboxylic acid cycle, and ultimately provides energy for the body. Calcium citrate mainly achieves more functions by breaking down citric acid in the stomach environment. Citric acid through the tricarboxylic acid cycle, and eventually produce carbon dioxide and water, and produce ATP, to provide energy for the body, promote body growth and development. Calcium citrate breaks down citric acid in the gastric environment, reduces gastrointestinal pH, and is conducive to the activation of pepsinogen. Calcium citrate has no irritating effect on the stomach and is directly absorbed by the body without being neutralized by stomach acid, with high absorption rate. The solubility of calcium citrate itself is better than other calcium sources such as calcium carbonate, calcium phosphate and calcium sulfate, and calcium ions can be released efficiently and smoothly during the degradation process.
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Manganese Ascorbate, Ferrous Ascorbate, Magnesium Lysinate Glycinate, Magnesium glutamine Glycinate Glutamine, Magnesium Citrate Malate, Strontium Citrate, Manganese Citrate, Copper Citrate, Lithium aspartate Aspartate, Selenium Taurate. |