WHAT IS VITAMIN

VITAMINS

Vitamins are nutrients that our body needs in small amounts to stay healthy, grow properly and perform important functions. There are 13 essential vitamins, and each vitamin has a different role in keeping our body healthy.

The 13 essential vitamins are:

1. Vitamin A

2. Vitamin B1 (Thiamine)

3. Vitamin B2 (Riboflavin)

4. Vitamin B3 (Niacin)

5. Vitamin B5 (Pantothenic acid)

6. Vitamin B6 (Pyridoxine)

7. Vitamin B7 (Biotin)

8. Vitamin B9 (Folate/Folic acid)

9. Vitamin B12 (Cobalamin)

10. Vitamin C

11. Vitamin D

12. Vitamin E

13. Vitamin K

TYPES OF VITAMINS

Vitamins are divided into two groups:

1. Fat-Soluble Vitamins

The fat-soluble vitamins are:

• Vitamin A

• Vitamin D

• Vitamin E

• Vitamin K

These can be stored in the body's liver and fatty tissues.

Since they can be stored in the body, they do not always need to be consumed every day in large amounts. However, taking very large amounts of some fat-soluble vitamins through supplements can be harmful.

2. Water-Soluble Vitamins

The water-soluble vitamins are:

• Vitamin B1

• Vitamin B2

• Vitamin B3

• Vitamin B5

• Vitamin B6

• Vitamin B7

• Vitamin B9

• Vitamin B12

• Vitamin C

Most water-soluble vitamins cannot be stored in large amounts in the body. Therefore, they should be regularly obtained through a healthy diet.

Vitamin B12 is an exception. The body can store a large amount of vitamin B12, mainly in the liver, and these stores can last for several years.

NEED FOR VITAMINS

Vitamins help our body to:

• Grow and develop normally

• Maintain healthy skin, bones, teeth and eyes

• Produce healthy blood cells

• Keep the brain and nervous system working properly

• Support the immune system

• Help the body use carbohydrates, fats and proteins

• Repair tissues and support wound healing

A balanced diet containing fruits, vegetables, whole grains, pulses, beans, nuts, seeds, eggs, dairy products and other nutritious foods can provide many of the vitamins our body needs.

VITAMIN DEFICIENCY

A vitamin deficiency occurs when the body does not get enough of a particular vitamin over time.

The symptoms of deficiency depend on which vitamin is lacking. For example:

• Vitamin A deficiency → vision problems

• Vitamin C deficiency → scurvy

• Vitamin D deficiency → weak or soft bones

• Vitamin B12 deficiency → anaemia and nerve problems

• Folate deficiency → anaemia

A healthy and varied diet helps reduce the risk of vitamin deficiencies.

VITAMIN A

Vitamin A is important for:

• Healthy eyesight

• Healthy skin

• Healthy teeth and bones

• Normal growth and development

• A healthy immune system

Deficiency

Severe vitamin A deficiency can cause poor vision, especially in dim light, and can affect the immune system.

VITAMIN B1 – THIAMINE

Vitamin B1, also called thiamine, helps the body convert carbohydrates and other nutrients into energy.

It is also important for:

• Healthy nerve cells

• Normal muscle function

• Proper functioning of the nervous system

Deficiency

Severe deficiency can cause problems involving the nervous system, muscles, and heart.

VITAMIN B2 – RIBOFLAVIN

Vitamin B2, also called riboflavin, helps the body release energy from food.

It is important for:

• Normal growth and development

• Healthy skin and eyes

• Production of red blood cells

• Normal cell function

Deficiency

Deficiency may cause problems such as sore throat and skin problems.

VITAMIN B3 – NIACIN

Vitamin B3 also called niacin, helps the body convert food into energy.

It supports:

• Healthy skin

• Normal nervous system function

• Normal digestion

• Energy production

Deficiency

Severe deficiency can cause pellagra, which may lead to skin problems, digestive problems, and nervous system problems.

Note: High doses of niacin supplements can affect the liver and cause other side effects, so they should not be taken without medical advice.

VITAMIN B5 – PANTOTHENIC ACID

Vitamin B5 also called pantothenic acid, helps the body use carbohydrates, fats and proteins.

It is also involved in the production of certain hormones and other important substances.

VITAMIN B6 – PYRIDOXINE

Vitamin B6 also called pyridoxine, is important for:

• Brain and nervous system function

• Formation of red blood cells

• Protein metabolism

• Normal immune function

Deficiency

Deficiency can cause anaemia, skin problems and nervous system problems.

VITAMIN B7 – BIOTIN

Vitamin B7 also called biotin, helps the body use carbohydrates, fats and proteins.

It is also important for normal cell function.

Deficiency

Biotin deficiency may cause hair loss, skin problems and weakness.

VITAMIN B9 – FOLATE

Vitamin B9 is called folate and is present naturally in food. Folic acid is a form of vitamin B9 commonly used in supplements and fortified foods.

Folate is important for:

• Making DNA

• Producing healthy red blood cells

• Cell growth and division

• Normal growth and development

Deficiency

Deficiency can cause a type of anaemia. During pregnancy, too little folate can increase the risk of certain birth defects.

VITAMIN B12 – COBALAMIN

Vitamin B12 also called cobalamin, is important for:

• Formation of red blood cells

• Healthy nerve cells

• DNA production

• Normal brain and nervous system function

• Normal metabolism

Deficiency

Vitamin B12 deficiency can cause anaemia, tiredness and nerve problems.

People who eat little or no animal foods may need to pay special attention to their B12 intake.

VITAMIN C

Vitamin C also called ascorbic acid, is an antioxidant that helps protect cells from damage.

It is important for:

• Healthy skin and connective tissues

• Wound healing

• Healthy teeth and gums

• Absorption of iron from plant foods

• Normal immune function

Deficiency

Severe vitamin C deficiency can cause scurvy, which may lead to bleeding gums, poor wound healing and weakness.

VITAMIN D

Vitamin D helps the body absorb calcium and phosphorus, which are important for healthy bones and teeth. Vitamin D is often called the “sunshine vitamin” because the body can make it when the skin is exposed to sunlight.

However, the amount of vitamin D produced from sunlight depends on factors such as age, skin type, season, location and amount of sun exposure.

Deficiency

Vitamin D deficiency can cause weak or soft bones and can affect normal bone development in children.

VITAMIN E

Vitamin E is a group of compounds, with alpha-tocopherol being the main form used by the human body.

It acts as an antioxidant and helps protect cells from damage.

It also supports:

• Normal immune function

• Healthy skin and tissues

• Normal red blood cell function

Deficiency

Vitamin E deficiency is uncommon in healthy people but can cause nerve and muscle problems when it occurs.

VITAMIN K

Vitamin K is important for:

• Normal blood clotting

• Maintaining healthy bones

Deficiency

Vitamin K deficiency can cause increased bleeding or problems with blood clotting.

Vitamin	Main Function	Food Sources
A	Eyesight, skin, growth, immunity	Carrots, spinach, eggs, dairy
B1	Energy production, nerves	Whole grains, pulses, nuts
B2	Energy production, growth	Milk, eggs, meat
B3	Energy production, skin and nerves	Meat, fish, nuts, grains
B5	Energy and metabolism	Meat, eggs, whole grains
B6	Brain, nerves, red blood cells	Fish, meat, banana, chickpeas
B7	Metabolism	Eggs, nuts, seeds, legumes
B9	DNA, red blood cells, cell growth	Green vegetables, beans, lentils
B12	Blood cells, nerves, DNA	Meat, fish, eggs, dairy
C	Immunity, wound healing, iron absorption	Amla, guava, citrus fruits
D	Bones, teeth, calcium absorption	Sunlight, fish, fortified foods
E	Antioxidant, cell protection	Nuts, seeds, vegetable oils
K	Blood clotting, bones	Green leafy vegetables, broccoli

CONCLUSION

Vitamins are essential for maintaining good health. They help our body grow, produce blood cells, maintain healthy bones and teeth, support the nervous system, protect cells, and perform many other important functions.

The best way to get most vitamins is to eat a balanced and varied diet containing vegetables, fruits, whole grains, pulses, beans, nuts, seeds, eggs, dairy products and other nutritious foods.

FAQ

1. What are vitamins?
Vitamins are essential organic nutrients that the body needs in small amounts for normal growth, development, metabolism, and overall functioning.

2. How many vitamins are there?
There are 13 recognised vitamins: A, C, D, E, K, and eight B vitamins—B1, B2, B3, B5, B6, B7, B9, and B12.

3. What are the two main types of vitamins?
Vitamins are broadly classified into fat-soluble and water-soluble vitamins. Fat-soluble vitamins are A, D, E, and K, while Vitamin C and the B vitamins are water-soluble.

4. What are fat-soluble vitamins?
Fat-soluble vitamins dissolve in fat and can be stored in the body's tissues. The fat-soluble vitamins are A, D, E, and K.

5. What are water-soluble vitamins?
Water-soluble vitamins dissolve in water and generally are not stored in large amounts in the body. Vitamin C and the B-complex vitamins belong to this group.

6. Why does the body need vitamins?
Vitamins support many body functions, including energy metabolism, immune function, vision, blood-cell formation, bone health, tissue repair, and normal nervous-system function.

7. Which foods are good sources of vitamins?
Fruits, vegetables, whole grains, legumes, nuts, seeds, dairy products, eggs, fish, meat, and fortified foods can provide different vitamins. Eating a varied diet helps provide a broad range of nutrients.

8. What is vitamin deficiency?
Vitamin deficiency occurs when the body does not receive or absorb enough of a particular vitamin. The effects depend on which vitamin is lacking and how severe the deficiency is.

9. What are common signs of vitamin deficiency?
Signs vary considerably. Depending on the vitamin involved, they can include tiredness, weakness, changes in vision or skin, poor wound healing, anaemia, or problems affecting the nervous system. These symptoms can also have other causes.

10. Can vitamins provide energy?
Vitamins themselves do not provide calories like carbohydrates, proteins, and fats. However, several vitamins, particularly B vitamins, help the body convert food into usable energy.

11. Is it better to get vitamins from food or supplements?
For most people, a balanced diet is the preferred way to obtain vitamins because foods also provide minerals, fibre, and other beneficial compounds. Supplements can be useful when dietary intake is inadequate or when recommended by a healthcare professional.

12. Can taking too many vitamins be harmful?
Yes. Excessive amounts of certain vitamins can cause adverse effects. This is particularly important with fat-soluble vitamins, which can accumulate in the body, but very high doses of some water-soluble vitamins can also cause problems.

13. Are vitamins important for children?
Yes. Vitamins are essential for children's normal growth, development, immune function, and other body processes. Their nutritional requirements differ according to age and stage of development.

14. Are vitamins important during pregnancy?
Yes. Adequate amounts of several vitamins are important during pregnancy because they support normal maternal health and fetal development. Supplementation should follow appropriate medical or nutritional guidance.

15. What is the best way to maintain adequate vitamin intake?
Eating a varied and balanced diet containing fruits, vegetables, whole grains, legumes, nuts, seeds, and appropriate animal or fortified foods can help meet vitamin requirements. If a deficiency or increased requirement is suspected, a healthcare professional can advise whether testing or supplementation is appropriate.