Chemical Elements And Vitamins Ep 1: Vitamin A

Hey Everyone!!


Welcome back to the krivenien show,i’m going to host a new topic in the show as i mentioned in one of the posts.So anyway i’m going to host this topic in the show as “chemical elements and vitamins“,if you are a new to the blog i have another topic i host in the krivenien show, and its “body parts”.Anyway i’m going to start this topic with first episode, and the episode gonna be the “Vitamin A”.


Everyone know there is vitamins, and that’s normal,but there is something behind the inside the vitamin A some things ,which few people know it and that’s why i want to host this topic in the show, to turn it from less to alot. Anyway as i just said i’m going to start the first episode of chemical elements and vitamins, and i’m going to start with the vitamin a,by the way its first episode so that means there is more to read, and i will try to go through most of the chemical elements and vitamins,so that’s everything i want to mention lets get this episode started!


Vitamin A:

First thing i will talk about is about the vitamin A,and we are going to learn little bit about this vitamin. The vitamin A is a group of unsaturated nutritional organic compounds that includes retinol, retinal, retinoic acid, and several provitamin A carotenoids most notably beta-carotene. If you don’t know the history about these names (retinol, retinal, retinoic acid),well these are names for the vitamin a, they have been discovered as vitamin a,and after they discovered that,they made a family for the vitamin a, and they are like a members in the family. And also  the  vitamin a known as  a fat soluble vitamin.

Little bit history about this vitamin,the vitamin a has gone through many discovery. Back to 1816 there is a physiologist called “François Magendie”  he observed that dogs deprived of nutrition developed corneal ulcers and had a high mortality rate. And then after 96 year there is someone called ” Frederick Hopkins” who demonstrated that unknown accessory factors found in milk, other than carbohydrates, proteins, and fats were necessary for growth in rats,and that was in 1912.

Later in 1913 there was one of these substances was independently was discovered by four people,but they give the people who tried a credit, anyway these four people are  Elmer McCollum and Marguerite Davis at the University of Wisconsin–Madison, and Lafayette Mendel and Thomas Burr Osborne at Yale University,and here is the problem the elmer and marguerite submitted their papers later than lafayette and thomas, and that cause the rejection of their submission. Anyway they were given a credits for their works,all of these guys  studied the role of fats in the diet.

The vitamin A was termed as “fat soluble” for two years, from 1918 to 1920. And then in the year 1920 it was changed to the current name “Vitamin A”. Vitamin A was first synthesized in 1947 by two Dutch chemists, David Dorp and Jozef Arens. So yeah this is everything interesting you would like to  know about the vitamin a.

The vitamin A have multiple functions or you can say benefits,which we will know in the benefits section. Anyway before we jump to the next section of the episode, let me mention more about the vitamin a. So all forms of vitamin A have a beta-ionone(in case you don’t know what the ionone is. The ionones are a series of closely related chemical substances that are part of a group of compounds known as rose ketones, which also includes damascones and damascenones) ring to which an isoprenoid chain is attached, called a “retinyl group”. Both structural features are essential for vitamin activity.


Vitamin A Benefits:

Of course i should use the list-best style in this section so,i hope you enjoy it, the vitamin a most know as a vision development,but it also have many good benefits that i will mention in this section.


1-First Benefit Is Skin Healthcare:

First Benefit Is Skin Healthcare

The vitamin A is a way to keep the skin healthy,and its necessary for the skin,that means if there is vitamin a deficiency it will lead to skin damage, it keep the skin away from damage. We talking about real damage, it will lead to drying skin which is really bad to have dried skin,and also you will get Keratinization of the skin (the keratinization is the process in which the cytoplasm of the outermost cells of the mammalian epidermis is replaced by keratin)


There is cells called “the epithelial cells”(these cells relating to or denoting the thin tissue forming the outer layer of a body’s surface and lining the alimentary canal and other hollow structures)and when lose their moisture and become hard and dry,It is needed to support all of the epithelial cells both internally and externally,and not only that but also its amazing to heal the wounds,so that means the vitamin a keeps the lines and wrinkles in your skin away by producing more collagen, and which responsible for keeping the skin looking young. Vitamin A can also contribute to healthy hair.


2-Second Benefit Is Immune Support:

The Vitamin a is very good for the immune system, in matter fact there is  Several immune system functions are dependent on sufficient vitamin A, which is why it is known as an important immune booting vitamin. And if you don’t know that the genes involved in immune responses are regulated by Vitamin A, which means it is essential for fighting serious conditions like cancer and autoimmune diseases.


the Beta-carotene i have mentioned this name early,and this is a powerful antioxidant which can help to boost the immune system and prevent a variety of chronic illnesses. The Vitamin A can help also the immunity of children.


3-Third Benefit Is Vision Health:



Third Benefit Is Vision Health

Well as i mentioned in the about section that the vitamin A most known for the vision development, and that’s true. The vitamin A is a critical part of the rhodopsin molecule, which is activated when light shines on the retina, and it sends a signal to the brain, which results in vision. The Beta-carotene which is the form of vitamin A found in plants,it plays a role in preventing macular degeneration, which leading cause of age-related blindness.


There is many studies that prove this, and i will mention one study for this. A study in early 2011 done by the researchers at Columbia University Medical Center in New York,and they reported that they found that a synthetic, altered form of vitamin A might be able to slow the progression of Stargardt’s disease, an inherited eye disease that causes severe vision loss in young people.


4-Fourth Benefit Is Fight against Inflammation:

Well if you have Inflammation, your best option, i mean you can use any good source of vitamin a but you have to ask the doctor advice use before doing, its not gonna hurt,might wont do the right job, so asking the doctor is something always we want to aim for before use anything.

Anyway the vitamin A as i said it has powerful  antioxidant properties, and these properties neutralize free radicals in the body that cause tissue and cellular damage. And also the  Vitamin A can prevent the cells from becoming overactive.The inflammation made from the  food allergies,and the  food allergies created when the immune system overreacts to food proteins.

So Vitamin A can help to lower the risk of certain types of food allergies because it helps to prevent this dangerous overreaction.


Okay we are done with list-best style, now last point i want to talk about in the benefits that the vitamin a is good for types of cancers, such as Lung, prostate, breast, ovarian, bladder, oral, and skin, and that because of the vitamin ability. The vitamin A have the ability  to control the malignant cells in the body,and if you remember in the beginning of this episode i have talked about the family for the vitamin A. And the retinoic acid is one of the family member and it plays important roles in cell development and differentiation as well as cancer treatment.

The cancers i mentioned early they have been demonstrated to be suppressed by retinoic acid,and also the Researchers found new evidence indicating that the molecular mechanisms in retinoic acid may control cancer cells’ fates.

Vitamin A Sources:

Well this is the important thing, i mean all of its  important to know but this especial  one,well after the benefits of course. Anyway i’m going to list most of the sources that contain the vitamin a.

1-Sweet potato


Sweet potato






5-Mustard greens
6-Collard greens
7-Turnip greens
8-Swiss chard
9-Winter squash
10-Romaine lettuce
11-Bok choy


13-Bell peppers

17-Sea vegetables

Sea vegetables

18-Chili peppers

Chili peppers
23-Brussels sprouts
24-Grapefruit (pink/red)


25-Beef Liver


26-Cantaloupe Melon


27-Sweet Red Peppers


28-Tuna Fish




30-Cow’s milk




37-Cod Fish


The Recommended intake of vitamin A:

Finally the last point i will talk about is the recommended intake of the vitamin. So everyone take the vitamin A and they complain if it did nothing, well maybe its not the right amount of the vitamin you should take. In this section we will go through everyone’s recommended intake from children  to men to women, its different due the different of the age and the gender.


okay so here is the recommended intake for the childern starting from one year to nine years, as you see its different and by the time you grow the amount of the vitamin increase.

1-3 years old: 300 mcg/day
4-8 years old: 400 mcg/day
9-13 years old: 600 mcg/day
Adult Females:

Here start from the 14 and here is thing, the gender can decide the intake,so the females intake is…

14 years old and above : 700 mcg/day

The females are different than the males, and they have things that males doesn’t have, and therefor the intake will change.
pregnant females: 750-770 mcg/day
females breastfeeding: 1,200-1,300 mcg/day
Adult Males:

here is the last one and its the males recommended intake. The males doesn’t have alot of the recommended intake, as long as you reached the age mentioned down below and up,just take the recommended intake of the vitamin A.

14 years old: 900 mcg/day


You have reached to the end of the first episode of the chemical elements and vitamins show,thank you so much for reaching till this point, i hope it’s helpful one for you everyone. I will see you in the next post, stay healthy till then!

2 thoughts on “Chemical Elements And Vitamins Ep 1: Vitamin A

  1. Have to tell you the first part of your post was somewhat over my head. You started to list the benefits of vitamin A and this I can get behind. Listing all the different fruits and vegetables that have vitamin A to eat and help is a wonderful list.

    • thank you so much, i really appreciated your nice comment!

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