Can sun exposure really replenish calcium? Can sun really replenish calcium?

May promote calcium absorption, but not calcium supplementation.

Under normal circumstances, vitamin D is inactive calciferol existing under the skin, and becomes active after ultraviolet irradiation, and forms dihydroxy D3 after two hydroxylations in the liver and kidneys, at this time, vitamin D can help intestinal calcium absorption into the blood, and transport the calcium in the blood to bones and teeth for deposition and storage. Without ultraviolet radiation and without the addition of active vitamin D, intestinal calcium cannot be absorbed into the bloodstream or is absorbed in very small amounts. In most cases, it is recommended that patients, especially elderly patients and children, should spend 15 minutes in the sun in winter, do not wear sunscreen when they are in the sun, and normally about 15 minutes a day can activate vitamin D.

Actually, this statement is not accurate. It is accurate to say that exposure to solar energy allows the body to better absorb calcium. Because sun exposure cannot directly supplement calcium to the human body, but it can indirectly supplement calcium by increasing the content of vitamin D in the body.

As an essential vitamin, vitamin D can improve the absorption of calcium in the intestines, reduce the excretion of calcium by the kidneys, and increase calcium intake from the source. Therefore, this is also the reason why sun exposure can replenish calcium. [1]

Also, sun exposure is very important for vitamin D supplementation. Because only 10 to 20% of the vitamin D in the human body is in food (mainly fatty marine fish and fish eggs, egg yolks, dairy products, etc.), and the rest is almost all exposed to ultraviolet rays.

Therefore, the elderly, parents, and children who want to supplement calcium, remember to bask in the sun often!

Basking in the sun supplements calcium, but it is only useful when it is sunburned!

Exposure to the sun can indeed replenish calcium, but if the method of drying is not correct, it may lead to poor calcium supplementation effect, and even serious consequences such as sunburn. So. What is the correct way to bask in the sun?

1) When to dry.

Taking Beijing as an example, we recommend that the time to bask in the sun is from March to November every year, from 11 o'clock to 3 o'clock every day, which is the two "11-3" principles. However, if you are in the south or in a place with strong sunlight, the time of sun exposure should also be adjusted accordingly, and it is recommended to do it under the guidance of a professional doctor at a local hospital.

2) How long to dry.

The vast majority of people can get the vitamin D needed by the body in 10 to 20 minutes of sunlight every day, shorter for children and longer for the elderly, but it is generally recommended to control it within 30 minutes to avoid sunburn. [2]

At the same time, the time should also be adjusted according to the intensity of ultraviolet rays, and it is generally recommended to shorten the sun exposure time as much as possible in summer, and extend it appropriately in winter.

(3) The best place to bask in the sun.

When basking in the sun, you should be fully exposed, and you should not bask in the sun through glass windows, clothes, sun-protective clothing, sunscreen, and parasols. This way of basking in the sun cannot achieve the effect of "calcium supplementation"! [3]

In general, we recommend going to a community or park with lawns and shrubs, as the environment is quieter and the air is fresher.

If you are sensitive to sunlight, have photopathy** or are not sure about the correct way to bask in the sun. Well, you can also opt for oral vitamin D supplements.

Seeing this, is everyone's doubt resolved? From now on, learn to bask in the sun correctly, and with certain outdoor activities and appropriate diet and nutritional supplements, you can scientifically supplement calcium!

Generally speaking, reasonable sun exposure has a certain promoting effect on calcium supplementation, because sun exposure can promote the effective synthesis of vitamin D, which is conducive to the absorption and replenishment of calcium, but it is not suitable to be exposed to the scorching sun, so it should be paid attention to at ordinary times.

Does solar energy supplement calcium? This should be able to promote the conversion of some vitamins in the body, and this should be able to supplement calcium.

Exposure to the sun can convert the cholesterol in the human body into vitamin D, vitamin D is the main basis for calcium absorption, so sun exposure does not mean that calcium can be supplemented, sun exposure can allow the body to produce more vitamins, and D can absorb more calcium.

Does sun exposure replenish calcium? Yes, sun exposure can completely supplement calcium, because on the road to health, doctors and experts have said that sun exposure can supplement calcium.

Basking in the sun does have a certain effect of calcium supplementation, but it is not possible to rely on him to supplement calcium, if he relies on calcium supplementation, the human body will definitely lack calcium. So that's the case, it's okay to take calcium tablets or take calcium injections.

Basking in the sun can indeed replenish calcium, because calcium needs some conditions to be synthesized, and sunlight can promote the synthesis of this to promote the absorption of our body. Therefore, basking in the sun can replenish calcium.

Exposure to the sun can replenish calcium, normal bone formation requires calcium deposition, calcium into the bone needs the help of vitamin D, vitamin D is a steroid derivative, mainly under the skin, after sun exposure.

Can sun exposure really replenish calcium? I said that under normal circumstances, of course, basking in the sun can supplement calcium, and I said that the development of calcium supplementation is also better.

Exposure to the sun actually promotes calcium absorption, and you should get more sun at the same time as calcium supplementation, otherwise the supplemented calcium will not be absorbed.

Can sun exposure really replenish calcium? People basking in the sun can really replenish calcium. But don't be exposed to the scorching sun every day. At that time, it will be sunburned**.

Exposure to the sun is very important for physical health, in fact, it can play a role in calcium supplementation, because you can eat vitamin D and then bask in the sun, which can promote the absorption of calcium, and the effect of calcium supplementation is still very good.

Exposure to the sun does not necessarily replenish calcium, like the sun is only good for health. If you want to supplement calcium, you have to buy calcium supplements. , vitamins are and so on, this can really supplement calcium.

Of course, basking in the sun can play a role in calcium supplementation, because of the sun's rays. It allows many vitamins and minerals to be absorbed.

Exposure to the sun is not to supplement calcium, but to be able to bask in the sun, not to supplement calcium, but to promote the absorption of calcium, so it should have an effect.

In fact, sun exposure does not directly supplement calcium, but produces vitamin D that can promote the absorption of calcium in the body. Therefore, sun exposure shows the synthesis of vitamin D3, and vitamin D3 promotes calcium absorption, so sun exposure can indirectly supplement calcium.

How does sunlight synthesize vitamin D3?

Of course, the sun can supplement calcium, which is based on science, if you don't bask in the sun for a long time, it will cause you to lose only calcium, if you bask in the sun for a long time, it will promote the growth of your calcium, so it is recommended that you still bask in the sun often, which is good for you.

Does the sun really replenish calcium? Especially for the elderly, who have osteoporosis, they should be exposed to the sun every day, because the sun is very ultraviolet to enhance calcium.

Vitamin D3 (cholecalciferol) in the body can come from food, and can also be converted into 7-dehydrocholesterol in ** (mammals) by the action of ultraviolet rays, and only converted into 25-(OH)-D3 in the liver, and then converted into 1,25-dihydroxycholecalciferol 1,25-(OH)2 d3 in the kidney, which has high metabolic activity. Animal Experiment Table.

In this case, if you can bask in the sun, how much can you promote the absorption of calcium?

Generally, it is not possible to directly supplement calcium to the human body through sun exposure, but sun exposure can promote the synthesis of vitamin D in the human body, which can promote the absorption of calcium by the human body; Proper sun exposure can also play a role in sterilization, promote metabolism and other functions, which has great benefits for the human body.

The elderly are prone to calcium deficiency, and children are afraid of calcium deficiency, in addition to the daily need for calcium supplementation, the old and the young are often told by doctors to "don't just care about calcium supplementation, but also bask in the sun every day!" So, whenever the weather is good, you can see parents in groups with their babies.

Can sun really replenish calcium? The precursor of vitamin D is steroids, which exist in the first place, and is activated after sun exposure, and then hydroxylated once in the liver, and then hydroxylated in the kidneys for the second time after hydroxylation, becoming dihydroxyvitamin D3, which can help the intestinal calcium to be absorbed from the intestines to the blood, and from the blood to the bones, which is equivalent to helping calcium complete the entire operation process.

Spending time in the sun can replenish calcium. The human body can supplement vitamin D through sun exposure, which can help the body absorb calcium in the body, and is the carrier of calcium absorption. If there is no vitamin D, calcium will not be absorbed, and no matter how much you eat, it will be excreted from the body.

Therefore, more exposure to sunlight, more outdoor exercise, and exposure to the sun are very beneficial for patients with calcium deficiency.

Exposure to the sun is calcium supplementation, and sun exposure can produce active vitamin D3, which can promote calcium absorption.

Spending more time in the sun is good and good for the body. However, the extremes of things must be reversed, and too much ultraviolet rays are also very harmful to **, and it is easy to get **cancer.

Exposure to the sun does not replenish calcium, and it may also burn you**. The elderly should go out more often to breathe fresh air and not bask in the sun for too long.

Calcium supplementation in the sun. There are ultraviolet rays in the sun, and proper UV exposure helps the body to synthesize vitamin D, which can be promoted.

The body's absorption of calcium is beneficial for bone growth and many aspects of physical health.

Staying in the sun can supplement calcium. There is a substance called "7-dehydrocholesterol" in the human **, which can be converted into vitamin D3 (also known as cholecalciferol) under ultraviolet radiation, and is used by the human body.

Generally speaking, it is a better choice to bask in the sun in winter, in the cold winter, if you can get a warm sun, it is a kind of enjoyment, and at the same time unconsciously can also promote the absorption of calcium in the body, at least half an hour a day, it is recommended that the sun is better in the morning from 6 to 10 o'clock in the morning and 3 to 5 o'clock in the afternoon, the sun can not only play a role in calcium supplementation, but also the infrared contained in the sun is also beneficial to the body, infrared can play a role in raising body temperature, It accelerates the metabolism of substances in cells, and also has the effect of anti-inflammatory and swelling.

The main reason for calcium supplementation in the sun is to help supplement vitamin D3 and thus help calcium absorption. Suggestion: It's okay to get a proper sun.

It is better to wear thin clothes. And don't want the scorching sun. Avoid heat stroke.

The sun in the morning or at dusk will do. The elderly can actually supplement vitamin D3 calcium tablets. It doesn't need to be that much trouble.

Exposure to the sun promotes calcium absorption.

The ultraviolet rays in sunlight can promote the conversion of 7-dehydrocholesterol in the basal layer of the human body into vitamin D3 through photochemical reaction, which is absorbed into the blood, and then produced by the action of hydroxylase in the liver and kidney. Active vitamin D can exert biological effects in multiple tissues and organs such as the intestines, kidneys, and bones, thereby promoting calcium and phosphorus absorption.

Although vitamin D can also be supplemented with food, about 80% of it is still synthesized through the above means. Therefore, insufficient sun exposure can lead to vitamin D deficiency, which can affect the effect of calcium supplementation.

The sun in the morning is okay, otherwise the hospital will not recommend letting the child bask in the sun more, of course, if you just want to rely on this to supplement calcium, it is better to take calcium tablets.

Yes, sun exposure can replenish calcium.

The principle of calcium supplementation in the sun:

Ultraviolet B in sunlight can act on the human body, so that 7-dehydrocholesterol is converted into vitamin D, which is absorbed into the blood and has been metabolized by the liver and kidney to become active vitamin D, which can play a biological effect in multiple tissues and organs such as intestines, kidneys and bones, which can not only promote the absorption of calcium and phosphorus, but also directly adjust bone metabolism, so as to achieve the effect of calcium supplementation. Although vitamin D can also be supplemented with food, about 80% of it is still synthesized by the above means.

You can't supplement calcium through glass:

Ultraviolet rays in sunlight are divided into ultraviolet A, ultraviolet B, and ultraviolet C. Ultraviolet C is almost all absorbed by the ozone layer and has little effect on us. UVA is highly penetrating and can penetrate most transparent glass as well as plastics.

Most of the ultraviolet B is absorbed by the ozone layer, only less than 2% can reach the earth's surface, it is not strong penetrating, and will be absorbed by transparent glass, but ultraviolet B can promote the metabolism of minerals and the formation of vitamin D in the body, so the sun through the glass can not promote the absorption of calcium.

UV rays in the sun can damage**:

The damage of sunlight to the human body mainly comes from ultraviolet A and ultraviolet B. Ultraviolet A is a long wave, acting on the deep layer of **, acting slowly, but it can cause one-time blackening. Ultraviolet B belongs to the middle wave, acting on the surface layer, acting quickly, can stimulate the keratinocytes, make blood vessels dilate, increase blood flow, will be red at the beginning, and then slowly turn brown.

Long-term excessive exposure can even cause cancer.

How to get in the sun safely and effectively?

6:00 a.m. - 10:00 p.m. 4:00 p.m. - 5:00 p.m

The vast majority of people are fine with 10-20 minutes of sunlight a day, shorter for children and longer for the elderly, but it is generally recommended to spend less than 30 minutes. People living at high altitudes and long-term low-level hypoxia need to extend the time of sun exposure to 30-60 minutes a day. In winter, you should also extend the amount of sun exposure as much as possible.

The best place to bask in the sun is outdoors. Even if you have to bask in the sun indoors for various reasons, be sure to open the window to let the sunlight come into direct contact with **. "Shorts and short sleeves in the summer, and face and hands in the winter" are the best choices.

In addition, sunglasses can avoid eye damage caused by direct sunlight; A hair cap can also help prevent sunburn.

Be sure to drink plenty of water and eat more fruits and vegetables after sun exposure to supplement vitamin C, which can inhibit the production of melanin and prevent sunspots.