What is the difference between D2 and D3 in vitamin Ad calcium (what is the difference between vitamin D2 and vitamin D3)

What is the difference between D2 and D3 in vitamin Ad calcium

The differences between D2 and D3 in vitamin Ad calcium are: 1. Difference in meaning. The chemical name of vitamin D2 is ergocalciferol. Ergocalciferol is an open-ring steroid formed by the cleavage of chemical bonds of steroids under the action of photochemistry. Vitamin D3 is also called cholecalciferol. It is a type of vitamin D. The 7-dehydrocholesterol generated after the dehydrogenation of cholesterol can be formed into cholecalciferol by ultraviolet irradiation. Therefore, the provitamin D of cholecalciferol is 7-dehydrocholesterol.

2. Differences in physical and chemical properties. The appearance and properties of vitamin D2 are odorless crystals with a density of 0.97g/cm3, a melting point of 114-118°C (lit.), a boiling point of 504.2°C Cat760mmHg, a flash point of 218.2°C, a refractive index of 1.53, and a storage condition of 2-8°C. The appearance and properties of vitamin D3 are crystalline, with a density of 0.96g/cm3, a melting point of 83-86°C (lit.), and a boiling point of 496.4ºCat760mmHg , the flash point is 214.2ºC, the refractive index is 1.507 (15ºC), it is stable under normal temperature and pressure, and the storage condition is 2-8ºC.

Vitamin is a type of trace organic substance that humans and animals must obtain from food to maintain normal physiological functions. It plays an important role in human growth, metabolism, and development. Vitamins do not participate in the formation of human cells in the body, nor do they provide energy to the human body. Vitamins participate in the biochemical reactions of the human body and regulate the metabolic functions of the human body. If the intake of vitamins is insufficient, the human body's metabolism will be out of balance, which will lead to decreased immunity and may lead to malnutrition and susceptibility to various diseases. Scientific research has found that at least 30 different compounds are considered vitamins, more than 20 of which are known to be necessary for biological health.

What is the difference between vitamin D2 and vitamin D3

There are at least 10 kinds of vitamin D known at present, but the most important ones are vitamin D2 (ergocalciferol) and vitamin D3 (cholecalciferal aldehyde). Vitamin D2 is produced from ergosterol in plants exposed to ultraviolet rays, but is rarely found in nature. Vitamin D3 is converted from 7-dehydrocholesterol contained in the human epidermis and dermis by ultraviolet rays in the sun. Vitamin D2 and vitamin D3 have exactly the same effects and mechanisms on the human body, and there is no difference in the use of the two by mammals and humans. However, the physiological activity of D3 is stronger than that of D2, so as long as there is regular sunlight exposure, vitamin D deficiency will generally not occur in the human body. The needs of children and the elderly increase, and they can also be supplemented from dairy products and cod liver oil.
Although vitamin D2 and vitamin D3 have the same effect on treating rickets in humans, they have different effects on treating rickets in some animals. For example, in the treatment of rickets in birds, vitamin D3 obtained from cod liver oil is more effective than vitamin D2 converted from ergot alcohol.

The difference between vitamin d2 and vitamin d3

Everyone is quite familiar with vitamins. However, after dividing vitamins into different names, everyone is very confused and does not know the difference between them and what the difference is. In fact, trace elements such as vitamin d2 can be supplemented by purchasing some food ingredients. For example, eggs, beef, and fish are very rich in vitamin d2. People with poor physical fitness can pay attention to buying more products rich in vitamin d2 when they go to the supermarket to buy food. For example, vitamin d3 is synthesized through photosynthesis. The human body can produce vitamin d3 during the process of basking in the sun, and it cannot be supplemented through food. After the introduction, everyone should be clear about the difference between vitamin d2 and vitamin d3, and also know the actual difference between the two.

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