Complex organic compounds that are needed in small amounts by the body for normal growth and metabolism. An important part of a balanced diet, vitamins occur naturally in foods and may be added. Vitamin A More items A vitamin is a chemical compound that is needed in small amounts for the human body to work correctly. They include Vitamin A, many B vitamins (like B 1, B 2, B 3, B 6, and B 12), Vitamin C, Vitamin D, Vitamin E, and Vitamin K. For example, citrus fruits such as oranges and lemons contain vitamin C. The term was coined in 1912 by biochemist Casimir Funk, who isolated a complex of micronutrients. Vitamins Hang Out in Water and Fat There are two types of vitamins: fat soluble and water soluble. When you eat foods that contain fatsoluble vitamins, the vitamins are stored in the fat tissues in your body and in your liver. They wait around in your body fat until your body needs them. Learner's definition of VITAMIN [count 1: a natural substance that is usually found in foods and that helps your body to be healthy. This cereal contains essential vitamins and minerals. vitamin pills [ more examples [ hide examples [ Example sentences [ Hide examples Vitamin K The Recommended Vitamin B12 Dosage For Seniors heydayDo. The law defines dietary supplements in part as products taken by mouth that contain a dietary ingredient. Dietary ingredients include vitamins, minerals, amino acids, and herbs or botanicals, as. Definition noun, plural: vitamins A low molecular weight organic compound that is essential for normal growth and metabolic processes and is required in trace amounts Supplement A vitamin is an organic compound that is essential for the normal growth and metabolic processes of an organism. The organism is not capable of synthesizing an adequate amount of such chemical compound and therefore. Medical Definition of Vitamins A vitamin is an organic molecule (or a chemically closely related set of molecules, i. vitamers) that is an essential micronutrient which an organism needs in small. May 28, 2019B vitamins are a group of eight related nutrients. This article takes a close look at all of the B vitamins, including their functions, sources, and deficiency symptoms. any of a group of natural substances that are necessary in small amounts for the growth and good. Vitamins are substances found in foods that our bodies need to work and be healthy. Our bodies cannot make vitamins, so we have to get them from the things we eat. There are 13 different vitamins A vitamin is an organic compound required by an organism as a vital nutrient in limited amounts. An organic chemical compound (or related set of compounds) is called a vitamin when it cannot be synthesized in sufficient quantities by an organism, and must be obtained from the diet. Vitamins are organic components in food that are needed in very small amounts for growth and for maintaining good health. The vitamins include vitamin D, vitamin E, vitamin A, and vitamin K, or the fatsoluble vitamins, and folate (folic acid), vitamin B 12, biotin, vitamin B 6, niacin, thiamin, riboflavin, pantothenic acid, and vitamin C (ascorbic acid), or the watersoluble vitamins. There are six basic types of nutrients that are considered essential to life: proteins, carbohydrates, fats, vitamins, minerals, and water. These nutrients are needed for your body to function properly, and your diet is the source of them. Vitamins and minerals are considered micronutrients because they are needed in smaller quantities than the macronutrients (protein, carbohydrates, and fat). Vitamin definition is any of various organic substances that are essential in minute quantities to the nutrition of most animals and some plants, act especially as coenzymes and precursors of coenzymes in the regulation of metabolic processes but do not provide energy or serve as building units, and are present in natural foodstuffs or sometimes produced within the body. Vitamin D Definition of vitamins in the Definitions. Information and translations of vitamins in the most comprehensive dictionary definitions resource on. Aug 02, 2020A vitamin supplement is a dietary aid taken by those who need or desire additional vitamins beyond what is provided in their normal daily diet. Often referred to as a dietary supplement, it may be recommended for people with certain conditions or limited diets. While a vitamin supplement should not be used as a replacement for food, they can. Protein any of a group of organic substances essential in small quantities to normal metabolism, found in minute amounts in natural foodstuffs or sometimes produced synthetically: deficiencies of vitamins produce specific disorders. The vitamins are natural and essential nutrients, required in small quantities and play a major role in growth and development, repair and healing wounds, maintaining healthy bones and tissues, for the proper functioning of an immune system, and other biological functions. Aug 06, 2020Vitamins 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. Healthy people do not need vitamin supplements. COBUILD Advanced English Dictionary. Vitamins are nutrients your body needs to function and fight off disease. Your body cannot produce vitamins itself, so you must get them through food you eat or in some cases supplements. There are Dec 27, 2018Vitamins: The word vitamin was coined in 1911 by the Warsawborn biochemist Casimir Funk ( ). At the Lister Institute in London, Funk isolated a substance that prevented nerve inflammation (neuritis) in chickens raised on a diet deficient in that substance. He named the substance vitamine because he believed it was necessary to life and it was a chemical amine. Jul 02, 2020Vitamins are a group of substances that are needed for normal cell function, growth, and development. There are 13 essential vitamins. This means that these vitamins are. Definition of Vitamins 16 rowsJun 11, 2020Vitamin, any of several organic substances that are necessary in small. Naturally found in plants and animals, vitamins are vital to growth, energy, and nerve function. There are two types of vitamins used by the body to support health: fatsoluble and water Vitamins are primarily attained from your dietary intake, with different vitamins originating from different types of food sources. Nearly all nutrients that are classified as vitamins are obtained through dietary means, which is indicative of the term essential, because the body cannot synthesize these compounds. Fatsoluble vitamins stay within the body for extended periods of time. There are many benefits to the longlasting nature of fatsoluble vitamins. One key benefit is that the body can store these vitamins in fatty tissues and the liver, and then rely on these vitamin stocks for future use. Vitamins can be classified based on their solubility. Most are watersoluble, meaning they dissolve in water. In contrast, the fatsoluble vitamins are similar to oil and do not dissolve in water. Vitamin C vitamin deficiency Not so long ago, most people would not have had an ideal regular intake of vitamin C, a vitamin the human body cannot synthesize. Apr 16, 2019According to MerriamWebster, the precise international unit or IU definition is a quantity of a biologically active substance (such as a vitamin) that produces a particular biological effect agreed upon as an international standard. Or, to put it another way, international units are a way of quantifying the biological effect you can expect. Vitamin Wikipedia Feb 04, 2015Vitamins are substances that our bodies need to develop and function normally. They include vitamins A, C, D, E, and K, choline, and the B vitamins (thiamin, riboflavin, niacin, pantothenic acid, biotin, vitamin B6, vitamin B12, and folatefolic acid). Source: National Institutes of Health, Office of Dietary Supplements Any vitamin tablet or capsule containing one or more vitamins. Thus, a tablet or capsule may contain a single vitamin or many, and in some instances, a preparation will contain more than a dozen vitamins and an even greater number of minerals. In general, healthy adult men and healthy nonpregnant, nonlactating women consuming a normal, varied diet do not need vitamin supplements. Nov 03, 2017Vitamin C is the only watersoluble vitamin that doesnt belong to the vitamin B category. It is one of the bodys main antioxidants and is required for collagen synthesis. Types Apr 29, 2019Vitamins help your body grow and work the way it should. There are 13 vitaminsvitamins A, C, D, E, K, and the B vitamins (thiamine, riboflavin, niacin, pantothenic acid, biotin, B 6, B 12, and folate). Vitamins have different jobshelping you resist infections, keeping your nerves healthy, and helping your body get energy from food or your blood to clot properly. vitamin synonyms, vitamin pronunciation, vitamin translation, English dictionary definition of vitamin. Any of various fatsoluble or watersoluble organic substances that are essential in minute amounts for normal growth and activity of living vitamins 1. A group of substances that are essential in small amounts in the diet. vitamin definition: The definition of a vitamin is a substance that is necessary for the processes of the body. Vitamin Purposes and Sources Vitamin A aids in growth, appetite, taste and eyesight. If you dont get enough vitamin A, you may. Vitamins are organic components in food that are needed in very small amounts for growth and for maintaining good health. The vitamins include vitamins D, E, A, and K (fatsoluble vitamins), and folate ( folic acid ), vitamin B 12, biotin, vitamin B 6, niacin, thiamin, riboflavin, pantothenic acid, and vitamin C (ascorbic acid) (watersoluble vitamins). Evidence based articles about health effects of vitamins from foods and supplements. What Is the Definition of Fat Soluble Vitamins? By Elise Deming, RDN Registered Dietitian Nutritionist. Two categories of vitamins exist: water soluble vitamins and fat soluble vitamins. Both types of vitamins are essential food good health and can be sourced through a healthy diet full of fruits, vegetables, lean meats, whole grains, dairy. any of a group of natural substances that are necessary in small amounts for the growth and good. : a product taken orally that contains one or more ingredients (such as vitamins, minerals, herbs, or amino acids) that are intended to supplement one's diet and are not considered food The study is looking at whether taking daily dietary supplements of vitamin D3 or omega3 fatty acids reduces the risk for developing cancer, heart disease and stroke. Prenatal vitamins are available overthecounter in nearly any pharmacy. Your health care provider might recommend a specific brand or leave the choice up to you. Beyond checking for folic acid and iron, look for a prenatal vitamin that contains calcium and vitamin D. They help promote the development of the baby's teeth and bones. Mar 03, 2020Vitamin D acts on our bones, intestines, kidneys and parathyroid glands to keep calcium in balance throughout our body. Vitamin D receptors are also located within our cardiovascular system, lungs, pancreas, skeletal muscle, skin, and reproductive organs. In summary, vitamin D is a prohormone that is essential for good health.