Any of a specific group of organic compounds essential in small quantities for healthy human growth, metabolism, development, and body function; found in minute amounts in plant and animal foods or sometimes produced synthetically; deficiencies of specific vitamins produce specific disorders
An organic compound essential in small quantities for normal physiologic and metabolic functioning of the body
Any of various organic substances essential in small quantities to the nutrition and normal metabolism of most animals Vitamins are found in minute quantities in food, in some cases are produced by the body, and are also produced synthetically
Any of various organic compounds that are considered essential for human development
Any group of organic compounds that the body needs for normal growth, development, and metabolism Most cannot be synthesized by the body so must be supplied by the diet The lack of a vitamin can cause a deficiency disease
an organic substance that acts as a coenzyme and/or regulator of metabolic processes There are 13 known vitamins, most of which are present in foods or supplements; some are produced within the body Vitamins are crucial for many bodily functions including a healthy immune response
Literally, vital amines A wide range of compounds that are either water-soluble or fat-soluble and are necessary components of the diet of higher organisms, such as mammals
any of the various organic substances that are essential in small amounts for most animals and mostly obtained from foods
A group of organic micronutrients, present in minute quantities in natural foodstuffs, that are essential to normal metabolism
{i} natural or manmade organic substances necessary for physical development and functioning
A substance necessary for growth and good health, found in many foods They help to nourish (feed and keep alive) the body
any of a group of organic substances essential in small quantities to normal metabolism
Vitamins are substances that you need in order to remain healthy, which are found in food or can be eaten in the form of pills. Butter, margarine, and oily fish are all good sources of vitamin D. Organic compound required in small amounts in the diet to maintain normal metabolic functions. The term vitamine (1911) was changed to vitamin when it was realized that not all vitamins are amines (i.e., not all contain nitrogen). Many vitamins act as or are converted to coenzymes. They neither provide energy nor are incorporated into tissues. Water-soluble vitamins (vitamin B complex, vitamin C) are excreted quickly. Fat-soluble vitamins (vitamin A, vitamin D, vitamin E, and vitamin K) require bile salts for absorption and are stored in the body. The normal functions of many vitamins are known. Deficiency of specific vitamins can lead to diseases (including beriberi, neural tube defect, pernicious anemia, rickets, and scurvy). Excess amounts, especially of fat-soluble vitamins, can also be dangerous: e.g., too much vitamin A causes liver damage, an effect not seen with beta-carotene, which the body converts into vitamin A. Several vitamins are now known to support the immune system. Most vitamins are adequately supplied by a balanced diet, but people with higher requirements may need supplements. vitamin B vitamin D deficiency vitamin C deficiency vitamin A vitamin B complex vitamin C vitamin D vitamin E vitamin K
Any of many organic substances that are vital in small amounts to the normal functioning of the body Vitamins are found in food, produced by the body, and manufactured synthetically; along with minerals, they are known as micronutrients
an organic compound needed in the diet in small amounts to promote and regulate the chemical reactions and processes of the body
- An essential nutrient that is required by the body and that must be obtained through diet or supplementation Vitamins and minerals are essential components in enzymes (speed up reactions) and coenzymes (help enzymes in their chemical reactions) Vitamins can be classified into two groups: water-soluble and fat-soluble Water-soluble vitamins must be taken into the body daily as they can't be stored and are excreted within one to four days Fat-soluble vitamins can be stored for longer periods of time in the body's fatty tissue and liver
Any organic substance that is essential to human health, and which the body cannot make for itself, at least not in sufficient quantities Vitamins are added to foods to increase their nutritional value