Definition of vitamins
Pro Research Analysisby 
Searched over 200M research papers
Definition of Vitamins: Essential Organic Compounds
Vitamins are organic compounds that are essential for the normal functioning, growth, and maintenance of the human body. They are required in very small amounts and must be obtained from the diet because the body either cannot synthesize them at all or cannot produce them in sufficient quantities to meet physiological needs Tahir2024Desai2019Mochulska2021+5 MORE. The term "vitamin" itself means "vital for life," highlighting their critical role in health .
Vitamins as Micronutrients and Their Biological Role
Vitamins are classified as micronutrients because they are needed only in trace amounts, yet they play a crucial role in a wide range of metabolic and physiological processes. They do not provide energy or serve as building blocks for body tissues, but instead act as catalysts or co-factors in biochemical reactions, supporting metabolism, immunity, growth, and development Tahir2024Desai2019Mochulska2021+5 MORE. Deficiency in any vitamin can lead to specific health problems and diseases Tahir2024Desai2019Srikanth2020+2 MORE.
Classification: Fat-Soluble and Water-Soluble Vitamins
Vitamins are generally divided into two main categories based on their solubility:
- Fat-soluble vitamins (such as vitamins A, D, E, and K) are stored in the body's fatty tissues and liver. They are absorbed along with dietary fats and can accumulate in the body Tahir2024Mochulska2021Zhang2024+1 MORE.
- Water-soluble vitamins (such as vitamin C and the B-complex group) are not stored in the body to a significant extent and must be consumed regularly in the diet. Excess amounts are usually excreted in urine Tahir2024Desai2019Mochulska2021+2 MORE.
Sources and Dietary Importance
Vitamins are found in a variety of foods, including fruits, vegetables, grains, dairy products, and animal products. A balanced diet that includes foods from all major food groups is the best way to ensure adequate vitamin intake Tahir2024Srikanth2020Fitzpatrick2012+1 MORE. In cases where dietary intake is insufficient, supplements may be necessary to prevent deficiencies Tahir2024Desai2019Mochulska2021+1 MORE.
Conclusion
In summary, vitamins are a group of essential organic micronutrients required in small amounts for the proper functioning of the body. They must be obtained from the diet, as the body cannot produce them in adequate quantities. Vitamins are vital for metabolism, growth, development, and overall health, and their deficiency can lead to significant health issues Tahir2024Desai2019Srikanth2020+7 MORE.
Sources and full results
Most relevant research papers on this topic
The effects of vitamins A, E, D, disorders of their metabolism and the assessment of level of vitamin security in children (literature review)
Children's bodies need a constant supply of vitamins A, E, D to maintain optimal functioning and prevent disorders like deficiency, hypo-, hyper-, and dysvitaminosis.
DOI