cholecalciferol

简明释义

英[ˌkəʊlɪkælˈsɪfəˌrɒl]美[ˌkoʊləkælˈsɪfərˌoʊl;kɑːləkæl

n. 胆钙化醇（同 vitamin D3）

英英释义

单词用法

同义词

反义词

例句

1.Cholecalciferol is produced by irradiation of 7-dehydrocholesterol with ultraviolet light either from the sun or from an artificial source.

胆钙化醇是7脱氢胆固醇经日光或人工来源的紫外线照射而产生的。

2.Cholecalciferol is produced by irradiation of 7-dehydrocholesterol with ultraviolet light either from the sun or from an artificial source.

胆钙化醇是7 ？脱氢胆固醇经日光或人工来源的紫外线照射而产生的。

3.Cholecalciferol is produced by irradiation of 7-dehydrocholesterol with ultraviolet light either from the sun or from an artificial source.

胆钙化醇是7 ？脱氢胆固醇经日光或人工来源的紫外线照射而产生的。

4.The doctor recommended a supplement containing cholecalciferol to improve my vitamin D levels.

医生建议我补充含有胆钙化醇的补品，以提高我的维生素D水平。

5.Many foods are fortified with cholecalciferol to help prevent deficiencies.

许多食物都添加了胆钙化醇，以帮助防止缺乏。

6.A blood test can determine if you have low levels of cholecalciferol.

血液检测可以确定你是否有低水平的胆钙化醇。

7.Exposure to sunlight increases the body's production of cholecalciferol.

阳光照射可以增加身体对胆钙化醇的产生。

8.Some people may require higher doses of cholecalciferol due to certain health conditions.

由于某些健康状况，有些人可能需要更高剂量的胆钙化醇。

作文

Vitamin D is an essential nutrient that plays a critical role in maintaining overall health. One of the most important forms of Vitamin D is known as cholecalciferol. This compound, also referred to as Vitamin D3, is synthesized in the skin when exposed to sunlight. It can also be obtained through certain foods and supplements. Understanding the significance of cholecalciferol is vital for promoting health and preventing diseases.When our skin is exposed to ultraviolet B (UVB) rays from the sun, it converts a cholesterol derivative into cholecalciferol. This process is crucial because many individuals do not get enough Vitamin D from their diet alone. Foods such as fatty fish, egg yolks, and fortified dairy products contain cholecalciferol, but the amounts may not be sufficient for optimal health. Therefore, supplementation is often recommended, especially for those living in areas with limited sunlight.The primary function of cholecalciferol is to help the body absorb calcium and phosphorus, which are essential for maintaining healthy bones and teeth. A deficiency in this vitamin can lead to weakened bones, increasing the risk of fractures and conditions such as osteoporosis. Moreover, recent studies have suggested that cholecalciferol might play a role in immune system regulation, potentially reducing the risk of autoimmune diseases and infections.Additionally, there is growing evidence that adequate levels of cholecalciferol can improve mood and cognitive function. Some research indicates that individuals with low levels of Vitamin D may be at a higher risk for depression. This highlights the importance of ensuring adequate intake of cholecalciferol not just for physical health but also for mental well-being.However, it is important to note that while cholecalciferol is essential for health, excessive intake can lead to toxicity. Symptoms of Vitamin D toxicity include nausea, vomiting, weakness, and serious complications like kidney damage. Therefore, it is crucial to consult healthcare professionals before starting any supplementation, especially for those with pre-existing health conditions.In conclusion, cholecalciferol is a vital component of our diet that supports numerous bodily functions, particularly in bone health and immune response. Ensuring adequate exposure to sunlight and considering dietary sources or supplements can help maintain optimal levels of this important nutrient. Furthermore, understanding the implications of both deficiency and excess of cholecalciferol is essential for making informed health choices. As we continue to learn more about the benefits of Vitamin D, it becomes increasingly clear that this nutrient should not be overlooked in our pursuit of a healthy lifestyle.

维生素D是一种必需的营养素，在维持整体健康方面发挥着关键作用。其中一种最重要的维生素D形式被称为胆钙化醇。这种化合物也被称为维生素D3，当皮肤暴露在阳光下时会合成。它还可以通过某些食物和补充剂获得。理解胆钙化醇的重要性对于促进健康和预防疾病至关重要。当我们的皮肤暴露在阳光的紫外线B（UVB）射线下时，它会将胆固醇衍生物转化为胆钙化醇。这一过程至关重要，因为许多人仅靠饮食无法获得足够的维生素D。像肥鱼、蛋黄和强化乳制品等食物中含有胆钙化醇，但数量可能不足以满足最佳健康需求。因此，通常建议补充，尤其是对于生活在阳光有限地区的人。胆钙化醇的主要功能是帮助身体吸收钙和磷，这对维持健康的骨骼和牙齿至关重要。缺乏这种维生素会导致骨骼脆弱，增加骨折和骨质疏松等疾病的风险。此外，最近的研究表明，充足的胆钙化醇水平可能在免疫系统调节中发挥作用，潜在地降低自身免疫性疾病和感染的风险。此外，有越来越多的证据表明，充足的胆钙化醇水平可以改善情绪和认知功能。一些研究表明，维生素D水平低的个体可能面临更高的抑郁风险。这突显了确保摄入足够的胆钙化醇的重要性，不仅是为了身体健康，也是为了心理健康。然而，需要注意的是，尽管胆钙化醇对健康至关重要，但过量摄入可能导致毒性。维生素D中毒的症状包括恶心、呕吐、虚弱以及严重并发症如肾损伤。因此，在开始任何补充剂之前，尤其是对于那些有既往健康状况的人，咨询医疗专业人士至关重要。总之，胆钙化醇是我们饮食中一个重要的组成部分，支持许多身体功能，特别是在骨骼健康和免疫反应方面。确保适当的阳光照射，并考虑饮食来源或补充剂，可以帮助维持这种重要营养素的最佳水平。此外，理解胆钙化醇缺乏和过量的影响对于做出明智的健康选择至关重要。随着我们继续了解维生素D的益处，越来越清楚的是，这种营养素在我们追求健康生活方式的过程中不应被忽视。