ascorbic acid

简明释义

维生素 c

英英释义

例句

1.Many dietary supplements contain ascorbic acid to boost immunity.

许多膳食补充剂含有抗坏血酸以增强免疫力。

2.Deficiency in ascorbic acid can lead to scurvy.

缺乏抗坏血酸可能导致坏血病。

3.The body requires ascorbic acid for the synthesis of collagen.

身体需要抗坏血酸来合成胶原蛋白。

4.Oranges are a great source of ascorbic acid.

橙子是丰富的抗坏血酸来源。

5.You can find ascorbic acid in various fruits and vegetables.

你可以在各种水果和蔬菜中找到抗坏血酸。

作文

Vitamin C, scientifically known as ascorbic acid, is an essential nutrient that plays a vital role in various bodily functions. It is a water-soluble vitamin that cannot be synthesized by the human body, making it crucial to obtain through diet or supplements. The significance of ascorbic acid lies not only in its role as a powerful antioxidant but also in its contribution to collagen synthesis, immune function, and the absorption of iron from plant-based foods.One of the most well-known benefits of ascorbic acid is its ability to protect the body against oxidative stress. Free radicals, which are unstable molecules produced during metabolism and environmental stressors, can damage cells and lead to chronic diseases. Antioxidants like ascorbic acid neutralize these free radicals, thereby reducing their harmful effects and promoting overall health. This antioxidant property of ascorbic acid has been linked to a lower risk of developing conditions such as heart disease, cancer, and neurodegenerative disorders.Moreover, ascorbic acid plays a critical role in collagen production. Collagen is a protein that provides structure to skin, blood vessels, and connective tissues. Adequate levels of ascorbic acid are necessary for the hydroxylation of proline and lysine, amino acids that are integral to collagen stability. A deficiency in ascorbic acid can lead to weakened collagen structures, resulting in symptoms such as bruising, joint pain, and slow wound healing. This highlights the importance of maintaining sufficient levels of ascorbic acid for skin health and overall tissue repair.In addition to its antioxidant and collagen-forming properties, ascorbic acid is also essential for a healthy immune system. It supports various cellular functions of both the innate and adaptive immune systems. Studies have shown that individuals with higher intakes of ascorbic acid tend to experience fewer infections and recover more quickly when they do fall ill. This makes ascorbic acid particularly important during cold and flu season, as well as for those with compromised immune systems.Furthermore, ascorbic acid enhances the absorption of non-heme iron, the type of iron found in plant-based foods. By converting iron into a more absorbable form, ascorbic acid helps prevent iron deficiency anemia, a common condition especially among vegetarians and vegans. Including sources of ascorbic acid in meals, such as citrus fruits, bell peppers, and leafy greens, can significantly improve iron status in the body.In conclusion, ascorbic acid is much more than just a vitamin; it is a multifunctional nutrient that supports various aspects of health. From its antioxidant properties to its role in collagen synthesis and immune function, ensuring adequate intake of ascorbic acid is essential for maintaining good health. Incorporating a variety of fruits and vegetables rich in ascorbic acid into one’s diet is a simple yet effective way to harness its numerous benefits and promote overall well-being. As we continue to learn more about the importance of vitamins and nutrients, ascorbic acid remains a key player in the quest for optimal health.

维生素C，科学上称为抗坏血酸，是一种对各种身体功能至关重要的必需营养素。它是一种水溶性维生素，人体无法合成，因此必须通过饮食或补充剂获得。抗坏血酸的重要性不仅在于它作为强效抗氧化剂的作用，还在于它对胶原蛋白合成、免疫功能和植物性食物中铁的吸收的贡献。抗坏血酸最为人所知的好处之一是它能够保护身体免受氧化压力。自由基是在新陈代谢和环境压力下产生的不稳定分子，它们可以损害细胞并导致慢性疾病。像抗坏血酸这样的抗氧化剂能够中和这些自由基，从而减少它们的有害影响，促进整体健康。抗坏血酸的这种抗氧化特性与降低心脏病、癌症和神经退行性疾病等疾病的风险有关。此外，抗坏血酸在胶原蛋白生产中也发挥着关键作用。胶原蛋白是一种为皮肤、血管和结缔组织提供结构的蛋白质。维持足够的抗坏血酸水平对于脯氨酸和赖氨酸的羟基化是必要的，这两种氨基酸对胶原蛋白的稳定性至关重要。缺乏抗坏血酸可能导致胶原蛋白结构的弱化，从而出现如瘀伤、关节疼痛和伤口愈合缓慢等症状。这突显了维持足够的抗坏血酸水平对于皮肤健康和整体组织修复的重要性。除了其抗氧化和胶原蛋白形成的特性外，抗坏血酸对健康的免疫系统也是必不可少的。它支持先天和适应性免疫系统的各种细胞功能。研究表明，摄入较高量抗坏血酸的人通常感染较少，并且在生病时恢复得更快。这使得抗坏血酸在感冒和流感季节以及免疫系统受损的人群中尤为重要。此外，抗坏血酸增强非血红素铁的吸收，非血红素铁是植物性食物中存在的铁。通过将铁转化为更易吸收的形式，抗坏血酸有助于防止缺铁性贫血，这是一种常见的状况，尤其是在素食者和严格素食者中。在餐中加入富含抗坏血酸的食物，如柑橘类水果、甜椒和绿叶蔬菜，可以显著改善体内的铁状态。总之，抗坏血酸不仅仅是一种维生素；它是一种多功能营养素，支持健康的各个方面。从它的抗氧化特性到在胶原蛋白合成和免疫功能中的作用，确保摄入足够的抗坏血酸对维持良好的健康至关重要。将丰富的抗坏血酸的各种水果和蔬菜纳入饮食是利用其众多好处并促进整体健康的一种简单而有效的方法。随着我们继续了解维生素和营养素的重要性，抗坏血酸仍然是追求最佳健康的关键角色。