Agni (Ayurveda)

Last updated

Agni in Samskrita means "fire", and according to Ayurveda, Agni happens to be the entity that is responsible for all digestive and metabolic processes in the human beings. [1]

Contents

Classification of Agni based on its location

Depending upon the stage of metabolism where a specific Agni is functionally active, Agni has been classified into three sub-classes: 'Jaṭharāgni', 'Bhūtāgni' and 'Dhātvagni'. [2] [3]

Jaṭharāgni

While Jaṭharāgni acts on the food in the digestive tract and converts it into absorbable form, the Bhūtāgni acts after the digested material has been absorbed.

Bhūtāgni

Bhūtāgni is of 5 types. Each of these 5 acts on the 5 primordial constituents of the absorbed food: Earth, Water, Fire, Air, and Space. These 5 Bhutagnis transform the substrates into such form that can be assimilated at tissue level.

Dhātvagni

The third class of Agni, the Dhātvagni, acts at the level of tissue metabolism and is helpful in the tissue nourishment tissue metabolism. This is of 7 types based on the kind of tissue that it helps nourishing.

Classification of Agni based on its strength

Further, Ayurveda recognizes four functional states of Agni: Samāgni (regular), Vişamāgni (irregular), Tīkşņāgni (intense) and Mandāgni (weak). [4] [5]

Samāgni

Samāgni ensures complete digestion of the food ingested at the proper time without any irregularity. Its activity is neither too intense nor too weak. It is just appropriate and therefore, is ideal too. This results when all Doshas, Vata-Pitta-Kapha are in a state of equilibrium.

Vişamāgni

Vişamāgni represents an unpredictable state of Agni, which is due to the dominance of Vayu. It sometimes quickly digests the food and at other times it does so very slowly, representing unpredictability.

Tīkşņāgni

Tīkşņāgni results because of the dominance of Pitta which is intense, and hence, it easily digests even a very heavy meal, in a very short span of time.

Mandāgni

Mandāgni is opposite to the Tīkşņāgni: it is subdued in its activity. This Agni is unable to digest and metabolize even a small quantity of food. This state of Agni is a result of the dominance of Kapha.

Related Research Articles

<span class="mw-page-title-main">Proteolysis</span> Breakdown of proteins into smaller polypeptides or amino acids

Proteolysis is the breakdown of proteins into smaller polypeptides or amino acids. Uncatalysed, the hydrolysis of peptide bonds is extremely slow, taking hundreds of years. Proteolysis is typically catalysed by cellular enzymes called proteases, but may also occur by intra-molecular digestion.

<span class="mw-page-title-main">Stomach</span> Digestive organ

The stomach is a muscular, hollow organ in the gastrointestinal tract of humans and many other animals, including several invertebrates. The stomach has a dilated structure and functions as a vital organ in the digestive system. The stomach is involved in the gastric phase of digestion, following chewing. It performs a chemical breakdown by means of enzymes and hydrochloric acid.

<span class="mw-page-title-main">Dietary fiber</span> Portion of plant-derived food that cannot be completely digested

Dietary fiber or roughage is the portion of plant-derived food that cannot be completely broken down by human digestive enzymes. Dietary fibers are diverse in chemical composition, and can be grouped generally by their solubility, viscosity, and fermentability, which affect how fibers are processed in the body. Dietary fiber has two main components: soluble fiber and insoluble fiber, which are components of plant-based foods, such as legumes, whole grains and cereals, vegetables, fruits, and nuts or seeds. A diet high in regular fiber consumption is generally associated with supporting health and lowering the risk of several diseases. Dietary fiber consists of non-starch polysaccharides and other plant components such as cellulose, resistant starch, resistant dextrins, inulin, lignins, chitins, pectins, beta-glucans, and oligosaccharides.

<span class="mw-page-title-main">Gastrointestinal tract</span> Organ system within humans and other animals

The gastrointestinal tract is the tract or passageway of the digestive system that leads from the mouth to the anus. The GI tract contains all the major organs of the digestive system, in humans and other animals, including the esophagus, stomach, and intestines. Food taken in through the mouth is digested to extract nutrients and absorb energy, and the waste expelled at the anus as faeces. Gastrointestinal is an adjective meaning of or pertaining to the stomach and intestines.

Digestion is the breakdown of large insoluble food compounds into small water-soluble components so that they can be absorbed into the blood plasma. In certain organisms, these smaller substances are absorbed through the small intestine into the blood stream. Digestion is a form of catabolism that is often divided into two processes based on how food is broken down: mechanical and chemical digestion. The term mechanical digestion refers to the physical breakdown of large pieces of food into smaller pieces which can subsequently be accessed by digestive enzymes. Mechanical digestion takes place in the mouth through mastication and in the small intestine through segmentation contractions. In chemical digestion, enzymes break down food into the small compounds that the body can use.

<span class="mw-page-title-main">Ruminant</span> Hoofed herbivorous grazing or browsing mammals

Ruminants are herbivorous grazing or browsing artiodactyls belonging to the suborder Ruminantia that are able to acquire nutrients from plant-based food by fermenting it in a specialized stomach prior to digestion, principally through microbial actions. The process, which takes place in the front part of the digestive system and therefore is called foregut fermentation, typically requires the fermented ingesta to be regurgitated and chewed again. The process of rechewing the cud to further break down plant matter and stimulate digestion is called rumination. The word "ruminant" comes from the Latin ruminare, which means "to chew over again".

<span class="mw-page-title-main">ADME</span> Acronym for process of disposition of pharmaceutical compounds

ADME is the four-letter abbreviation (acronym) for absorption, distribution, metabolism, and excretion, and is mainly used in fields such as pharmacokinetics and pharmacology. The four letter stands for descriptors quantifying how a given drug interacts within body over time. The term ADME was first introduced in the 1960s, and has become a standard term widely used in scientific literature, teaching, drug regulations, and clinical practice.

<i>Dosha</i> Ayurvedic medicine concept

Dosha is a central term in ayurveda originating from Sanskrit, which can be translated as "that which can cause problems", and which refers to three categories or types of substances that are believed to be present conceptually in a person's body and mind. These Dosha are assigned specific qualities and functions. These qualities and functions are affected by external and internal stimuli received by the body. Beginning with twentieth-century ayurvedic literature, the "three-dosha theory" has described how the quantities and qualities of three fundamental types of substances called wind, bile, and phlegm fluctuate in the body according to the seasons, time of day, process of digestion, and several other factors and thereby determine changing conditions of growth, aging, health, and disease.

<span class="mw-page-title-main">Pulse diagnosis</span> Pseudo-medicine technique

Pulse diagnosis is a diagnostic technique used in Ayurveda, traditional Chinese medicine, traditional Mongolian medicine, Siddha medicine, traditional Tibetan medicine, and Unani. Although it once showed many positive results, it no longer has scientific legitimacy, but research continues and is ill-defined in some derived text, and is subjective.

<span class="mw-page-title-main">Customs and etiquette in Indian dining</span> Etquette and practices in india

The etiquette of Indian dining and socializing varies with the region in India.

<i>Charaka Samhita</i> Sanskrit text on ayurveda

The Charaka Samhita is a Sanskrit text on Ayurveda. Along with the Sushruta Samhita, it is one of the two foundational texts of this field that have survived from ancient India. It is one of the three works that constitute the Brhat Trayi.

Lipid metabolism is the synthesis and degradation of lipids in cells, involving the breakdown and storage of fats for energy and the synthesis of structural and functional lipids, such as those involved in the construction of cell membranes. In animals, these fats are obtained from food and are synthesized by the liver. Lipogenesis is the process of synthesizing these fats. The majority of lipids found in the human body from ingesting food are triglycerides and cholesterol. Other types of lipids found in the body are fatty acids and membrane lipids. Lipid metabolism is often considered the digestion and absorption process of dietary fat; however, there are two sources of fats that organisms can use to obtain energy: from consumed dietary fats and from stored fat. Vertebrates use both sources of fat to produce energy for organs such as the heart to function. Since lipids are hydrophobic molecules, they need to be solubilized before their metabolism can begin. Lipid metabolism often begins with hydrolysis, which occurs with the help of various enzymes in the digestive system. Lipid metabolism also occurs in plants, though the processes differ in some ways when compared to animals. The second step after the hydrolysis is the absorption of the fatty acids into the epithelial cells of the intestinal wall. In the epithelial cells, fatty acids are packaged and transported to the rest of the body.

<span class="mw-page-title-main">Sucrose intolerance</span> Medical condition

Sucrose intolerance or genetic sucrase-isomaltase deficiency (GSID) is the condition in which sucrase-isomaltase, an enzyme needed for proper metabolism of sucrose (sugar) and starch, is not produced or the enzyme produced is either partially functional or non-functional in the small intestine. All GSID patients lack fully functional sucrase, while the isomaltase activity can vary from minimal functionality to almost normal activity. The presence of residual isomaltase activity may explain why some GSID patients are better able to tolerate starch in their diet than others with GSID.

Benoxaprofen, also known as Benoxaphen, is a chemical compound with the formula C16H12ClNO3. It is a non-steroidal anti-inflammatory drug (NSAID) of the propionic acid class, and was marketed under the brand name Opren in the United Kingdom and Europe by Eli Lilly and Company (commonly referred to as Lilly), and as Oraflex in the United States of America (USA). Lilly suspended sales of Oraflex in 1982 after reports from the British government and the United States Food and Drug Administration (US FDA) of adverse effects and deaths linked to the drug.

<span class="mw-page-title-main">Postprandial somnolence</span> State of drowsiness or lassitude following a meal

Postprandial somnolence is a normal state of drowsiness or lassitude following a meal. Postprandial somnolence has two components: a general state of low energy related to activation of the parasympathetic nervous system in response to mass in the gastrointestinal tract, and a specific state of sleepiness. While there are numerous theories surrounding this behavior, such as decreased blood flow to the brain, neurohormonal modulation of sleep through digestive coupled signaling, or vagal stimulation, very few have been explicitly tested. To date, human studies have loosely examined the behavioral characteristics of postprandial sleep, demonstrating potential shifts in EEG spectra and self-reported sleepiness. To date, the only clear animal models for examining the genetic and neuronal basis for this behavior are the fruit fly, the mouse, and the nematode Caenorhabditis elegans.

<span class="mw-page-title-main">Genistin</span> Chemical compound

Genistin is an isoflavone found in a number of dietary plants like soy and kudzu. It was first isolated in 1931 from the 90% methanol extract of a soybean meal, when it was found that hydrolysis with hydrochloric acid produced 1 mole each of genistein and glucose. Chemically it is the 7-O-beta-D-glucoside form of genistein and is the predominant form of the isoflavone naturally occurring in plants. In fact, studies in the 1970s revealed that 99% of the isoflavonoid compounds in soy are present as their glucosides. The glucosides are converted by digestive enzymes in the digestive system to exert their biological effects. Genistin is also converted to a more familiar genistein, thus, the biological activities including antiatherosclerotic, estrogenic and anticancer effects are analogous.

<span class="mw-page-title-main">Galactooligosaccharide</span> Class of prebiotics

Galactooligosaccharides (GOS), also known as oligogalactosyllactose, oligogalactose, oligolactose or transgalactooligosaccharides (TOS), belong to the group of prebiotics. Prebiotics are defined as non-digestible food ingredients that beneficially affect the host by stimulating the growth and/or activity of beneficial bacteria in the colon. GOS occurs in commercially available products such as food for both infants and adults.

Vamana Karma, also known as medical emesis or medical vomiting, is one of the five Pradhana Karmas of Panchakarma which is used in treating Kaphaj disorders.

<span class="mw-page-title-main">Human digestive system</span> Digestive system in humans

The human digestive system consists of the gastrointestinal tract plus the accessory organs of digestion. Digestion involves the breakdown of food into smaller and smaller components, until they can be absorbed and assimilated into the body. The process of digestion has three stages: the cephalic phase, the gastric phase, and the intestinal phase.

Methanogens are a group of microorganisms that produce methane as a byproduct of their metabolism. They play an important role in the digestive system of ruminants. The digestive tract of ruminants contains four major parts: rumen, reticulum, omasum and abomasum. The food with saliva first passes to the rumen for breaking into smaller particles and then moves to the reticulum, where the food is broken into further smaller particles. Any indigestible particles are sent back to the rumen for rechewing. The majority of anaerobic microbes assisting the cellulose breakdown occupy the rumen and initiate the fermentation process. The animal absorbs the fatty acids, vitamins and nutrient content on passing the partially digested food from the rumen to the omasum. This decreases the pH level and initiates the release of enzymes for further breakdown of the food which later passes to the abomasum to absorb remaining nutrients before excretion. This process takes about 9–12 hours.

References

  1. Agrawal, Akash Kumar; Yadav, C. R.; Meena, M. S. (2010). "Physiological aspects of Agni". AYU. 31 (3): 395–398. doi: 10.4103/0974-8520.77159 . PMC   3221079 . PMID   22131747.
  2. "Bhutagni, Bhūtāgni, Bhuta-agni: 4 definitions". wisdomlib. 24 June 2016.
  3. "Concepts of Agni". athreyaherbs.com.
  4. Mishra, Lakshmi C. (2003). Scientific Basis for Ayurvedic Therapies. CRC Press. pp. 307–322. ISBN   0-8493-1366-X.
  5. Singh, Aparna; Singh, Girish; Patwardhan, Kishor; Gehlot, Sangeeta (2017). "Development, Validation, and Verification of a Self-Assessment Tool to Estimate Agnibala (Digestive Strength)". J Evid Based Complementary Altern Med. 22 (1): 134–140. doi:10.1177/2156587216656117. PMC   5871217 . PMID   27381899.