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Reactive Oxygen SpeciesOxygen ConsumptionFree RadicalsOxygenFree Radical ScavengersAntioxidantsHydroxyl RadicalPlant ExtractsFruitElectron Spin Resonance SpectroscopyOxidation-ReductionEnergy MetabolismOxidative StressHydrogen PeroxideSuperoxide DismutasePicratesLipid PeroxidationHydroxidesSuperoxidesMitochondriaNitrogen OxidesAlcohol DrinkingMyocardiumCyclic N-OxidesTime FactorsSpin LabelsSinglet OxygenXanthine OxidaseCatalasePartial PressurePhysical ExertionExercise TestAscorbic AcidCarbon DioxideHeart RateSpin TrappingExerciseLactic AcidKineticsLipid PeroxidesPolarographyOxygen Inhalation TherapyLactatesHemodynamicsDietRats, WistarDogsBody Temperature RegulationAnoxiaCell RespirationGlucoseCoronary CirculationNitric OxideGlutathioneMalondialdehydeAdenosine TriphosphateEthanolCardiac OutputBody TemperatureDose-Response Relationship, DrugExercise ToleranceRespirationIon-Selective ElectrodesPerfusionHeartRats, Sprague-DawleyBody WeightOxidative PhosphorylationOxidantsBlood PressureMuscle, SkeletalIronPulmonary Gas ExchangeLuminescent MeasurementsAerobiosisOxygen IsotopesElectron TransportBiphenyl CompoundsRegional Blood FlowBlood Gas AnalysisLiverPeroxidesHemoglobinsGlycolysisBasal MetabolismPhysical EnduranceDeferoxamineAntipyrineBeveragesModels, BiologicalMitochondria, HeartHydrogen-Ion ConcentrationAnalysis of VarianceCells, CulturedVitamin EThiobarbituric Acid Reactive SubstancesVegetablesOxyhemoglobinsEatingProstatectomy
AbsorbanceAntioxidantsCapacityReactiveNeutralizeInfluence the ORAC valueMoleculesCells caused by free radicalsOxidative damageScavenge free radicalsStabilize free radicalsUSDABerriesBlueberriesCombat oxidativeCompoundsGramsTroloxHighPeroxylBodyDPPHSelected antioxidant propertiesVegetablesRefersFood5,000FruitsFoodsAntioxidant capacitiesUnhealthySubstanceCherriesImmuneExtractsInflammationValuesCancerSuperfoodsOccursSupplementsChokeberryGrape juiceHigherBiological
Absorbance21
  • Oxygen radical absorbance capacity (ORAC) was a method of measuring antioxidant capacities in biological samples in vitro. (wikipedia.org)
  • Raspberry has an ORAC value (oxygen radical absorbance capacity) of about 4900 µmol TE per 100 grams, crediting it among the top-ranked ORAC fruits. (motherearthstorehouse.com)
  • The last one with direct transferrable results for human health is the oxygen radical absorbance capacity (ORAC) technique, which is also an effective method for measuring TAC of human blood plasma 2 . (aprifel.com)
  • ORAC stands for Oxygen Radical Absorbance Capability. (upshak.com)
  • It is one of the few vegetables that have a high Oxygen Radical Absorbance Capacity (ORAC) value. (nutrifusion.com)
  • Oxygen radical absorbance capacity (ORAC) is a measure of the antioxidant activity in a food. (todaysdietitian.com)
  • In this article, you will learn how the antioxidant potency of açaí and other foods is assessed, using a measurement known as oxygen radical absorbance capacity, or ORAC. (lifeextension.com)
  • The standard index for determining the antioxidant value of various organic compounds is known as oxygen radical absorbance capacity, or ORAC. (lifeextension.com)
  • High ORAC (Oxygen Radical Absorbance Capacity) value. (shopglobal.com)
  • The Oxygen Radical Absorbance Capacity ( ORAC ) determines the antioxidant capacity of a substance . (chokeberryplus.com)
  • This stands for Oxygen Radical Absorbance Capacity. (creativitequebec.ca)
  • A rating tool called the Oxygen Radical Absorbance Capacity ( ORAC ) was created by scientists from the National Institute on Aging and the United States Department of Agriculture (USDA) to measure the antioxidant capacity of foods. (wellbeingnutrition.com)
  • This value is the oxygen radical absorbance capacity, which measures how many antioxidants exist within a food. (youngandraw.com)
  • In fact, one measure measurement of antioxidant value known as ORAC value, which stands for oxygen radical absorbance capacity found that Sangre de grado scored off the charts and was actually the highest rated ORAC antioxidant ever measured. (greenlivingtribe.com)
  • To find other foods you might enjoy that rank high in antioxidants, you can browse the ORAC (Oxygen Radical Absorbance Capacity) Database . (runsmartonline.com)
  • The acronym ORAC refers to oxygen radical absorbance capacity. (yiistech.com)
  • In order to measure the antioxidant capacity of food and other substances, scientists use what's called ORAC (Oxygen radical absorbance capacity) and assign numbers. (msfullhair.com)
  • ORAC is an acronym that stands for 'oxygen radical absorbance capacity. (raysahelian.com)
  • Simple assays including the oxygen radical absorbance capacity and DPPH (2, 2'-diphenyl-l-picrylhydrazyl) were designed to measure an individual antioxidant's free radical scavenging capacity. (raysahelian.com)
  • This measure is called Oxygen Radical Absorbance Capacity (ORAC). (healthychocolates.com)
  • We aimed to determine whether higher mortality rates with high milk consumption are modified by fruit and vegetable intake or total antioxidant intake (oxygen radical absorbance capacity). (medscape.com)
Antioxidants26
Capacity13
  • In the following discussion, the term "antioxidant" refers mainly to non-nutrient compounds in foods, such as polyphenols, which have antioxidant capacity in vitro, so provide an artificial index of antioxidant strength-the ORAC measurement. (wikipedia.org)
  • This is an crucial residence, as it denotes the capacity to take in free radicals from your human body. (upshak.com)
  • Find out how these and other findings confirm berry polyphenols' unrivalled capacity to blunt free radical damage and thwart degenerative disease. (lifeextension.com)
  • Similarly, freeze-dried açaí extract has demonstrated unrivalled scavenging capacity against two of the most damaging reactive oxygen species, the superoxide and peroxyl radicals. (lifeextension.com)
  • ORAC refers to Oxygen Radical Absorption Capacity, which is a method for measuring the antioxidant capacities of different foods, and how many oxygen radicals a substance can absorb. (shopglobal.com)
  • 100 grams of aronia berries have an ORAC of 16,000 Trolox equivalents, giving them four to ten times higher antioxidant capacity compared to blueberries, cranberries or cranberries. (chokeberryplus.com)
  • ORAC: Oxygen Radical Absorption Capacity is the value which measures the effectiveness of a food for subduing free radicals. (amaraq.com)
  • Thanks to this, chaga mushroom has the highest oxygen radical absorbing capacity (ORAC) or the highest antioxidant capacity among mushrooms, with an ORAC score of 146, 700 μ mol TE/100 g. 1 To put this in perspective, this value is way more than that of dark chocolates or most berries, common antioxidant foods. (curejoy.com)
  • The oxygen radical absorbency capacity or ORAC (measurement of antioxidant strength of food items) demonstrates chokeberry with one of the highest values yet recorded among berries-16,062 micro-moles of Trolox Equivalents (TE) per 100 g. (liquidk2spray.com)
  • One of its most essential functions is related to the central nervous system, which grape seed extract can protect from reactive oxygen species, leading to mild cognitive impairment, cognitive decline associated with Alzheimer's disease, memory loss, inability to focus, poor learning capacity, etc. (brainreference.com)
  • The mass fractions of total phenolic com-pounds, anthocyanins and resveratrol (HPLC-DAD), as well as the antioxidant properties (DPPH · , · OH and ABTS + radical scavenging capacity) were determined. (researchgate.net)
  • 0.05) were observed in respect of the free radical scavenging capacity of most investigated cranberry cultivars. (researchgate.net)
  • radical scavenging capacity) were determined. (researchgate.net)
Reactive2
  • Altogether, these compounds help act as protective scavengers against oxygen-derived free radicals and reactive oxygen species (ROS) that play a role in aging and various disease processes. (motherearthstorehouse.com)
  • The evolution of angiosperm plants between 50 and 200 million years ago resulted in the development of many antioxidant pigments - particularly during the Jurassic period - as chemical defences against reactive oxygen species that are byproducts of photosynthesis . (wikipedia.org)
Neutralize5
  • The most popular description in scientifi c literature related to antioxidant activity is total antioxidant activity (TAC) which determines the ability of substance, materials, food to neutralize oxygen-free radical specific form, irrespectively to specific antioxidant activity of present antioxidants1. (aprifel.com)
  • Compounds isolated in freeze-dried açaí extract have been shown to enter human cells and neutralize free radicals at very low doses. (lifeextension.com)
  • The higher the ORAC value of a food, the better it can neutralize free radicals. (chokeberryplus.com)
  • Nature's Sunshine used an analytical instrument to measure ORAC, or the power an individual ingredient has to neutralize free radicals. (theherbsplace.com)
  • Anti-oxidants are chemical compounds found in plant foods which neutralize the negative effects of free radicals and therefore combat oxidative damage in our cells. (redespresso.com)
Influence the ORAC value1
  • different growing and harvesting conditions, including the season and temperature, influence the ORAC value of a particular plant by several fold: ORAC value can be influenced by how the plant material is dealt with, for instance cooking, freezing, and storage. (raysahelian.com)
Molecules5
  • Free radicals are toxic molecules, they are caused by the normal process of cell metabolism and a result of external factors such as solar radiation, exposure to harmful chemicals, environmental pollution or inhaling tobacco smoke. (amaraq.com)
  • Free radicals are molecules that are produced by our body's cells during everyday activities such as breathing, digesting, growing and repairing. (redespresso.com)
  • This process affects healthy molecules to become free radicals themselves and causes a negative domino effect to numerous normal and healthy cells. (msfullhair.com)
  • As free radicals attack healthy molecules by capturing their electrons, they can also interfere with the normal hair growth cycle by damaging hair follicle cells. (msfullhair.com)
  • Antioxidant molecules in food are known to have a wide range of functions, many of which are unrelated to the ability to absorb free radicals. (raysahelian.com)
Cells caused by free radicals1
Oxidative damage1
Scavenge free radicals1
Stabilize free radicals2
  • A chain-breaking antioxidant, such as vitamins A, C and E, stabilize free radicals or cause them to decay into harmless atomic structures. (shopglobal.com)
  • This helps stabilize free radicals from stealing electrons from other healthy cells and prevents them from causing further cellular damage. (msfullhair.com)
USDA3
  • Resulting from scientific refutation of the physiological significance of ORAC, the USDA, which had been collating and publishing ORAC data for more than a decade, withdrew its web publication of ORAC values for common American foods in May 2012. (wikipedia.org)
  • ORAC values from USDA published DATA & NUTRIENT database. (chokeberryplus.com)
  • The USDA recently suggested, "Eating plenty of high-ORAC* fruits and "Eating plenty of high-ORAC* fruits and vegetables-such as spinach and blueberries-may help slow the processes associated with aging in both body and brain. (theherbsplace.com)
Berries5
  • 100 g berries provide 26.2 mg or about 47% of DRI of vitamin C. Consumption of fruits rich in vitamin C helps the human body develop resistance against infectious agents, counter inflammation, and scavenge harmful free radicals. (motherearthstorehouse.com)
  • Some examples which are at the high end of the ORAC scale include acai berries, mulberries, goji berries and high cocoa solid dark chocolate. (amaraq.com)
  • The foods that passed off with high ORAC scores were cocoa, berries, spices, and legumes. (wellbeingnutrition.com)
  • Scientific studies have shown that consumption of berries on regular basis offers potential health benefits against cancer, aging and neurological diseases, inflammation, diabetes, and bacterial infections. (liquidk2spray.com)
  • Berries have some of the highest ORAC values of fruits. (raysahelian.com)
Blueberries4
  • Red grapes are characterized by the presence of large amounts of resveratrol, a stilbene polyphenol derivative, a compound that blueberries do not contain, and which in the opinion of experts, shows a much weaker free-radical scavenging properties of oxygen than anthocyanins. (aprifel.com)
  • A good ORAC supplement should contain at least 3000 ORAC units in the form of high-ORAC value foods such as blueberries, cranberries and elderberries. (shopglobal.com)
  • Isotonix Maximum ORAC is an isotonic-capable supplement composed of a powerful blend of blueberries, raspberries, cranberries and elderberries, black currant, pomegranate, plum, vitamins C and E (natural tocopherol, tocotrienols) and Bioperine® (black pepper extract). (shopglobal.com)
  • In order to get 3000 ORAC units through food, one would have to consume a cup of blueberries per day. (shopglobal.com)
Combat oxidative1
Compounds2
  • The assay measures the oxidative degradation of the fluorescent molecule (either beta-phycoerythrin or fluorescein) after being mixed with free radical generators such as azo-initiator compounds. (wikipedia.org)
  • These free radical-fighting compounds work together to protect brain cells from damage, and help slow the rate of age-related cognitive decline. (askmen.com)
Grams1
  • The numerical values above indicate ORAC units per 100 grams (about 3.5 ounces). (lifeextension.com)
Trolox1
  • Q. Could you give me the orac values of products in terms of trolox equivalents per g instead of per serving so i can actually compare them? (raysahelian.com)
High15
  • This guidance for the United States and European Union establishes it is illegal to imply potential health benefits on package labels of products with high ORAC. (wikipedia.org)
  • The objective was to investigate the role of consumption of grape juice (GJ), red wine (RW) or resveratrol solution (RS) on rats treated with a high-fat diet (HFD). (bvsalud.org)
  • Because of the high proportion of flavonoids in chokeberry juice, free radicals in the body are neutralized, which can prevent cell damage. (chokeberryplus.com)
  • Using this instrument, Nature's Sunshine scientists measured many combinations of ingredients before finally selecting a proprietary blend of 11 fruits and herbs that test high on the ORAC scale. (theherbsplace.com)
  • The French diet is often high in fat, but the French have a higher level of heart health, which is in part attributed to frequent consumption of red wines. (theherbsplace.com)
  • Superfoods are frequently those that are high on the ORAC scale. (gillianmckeith.com)
  • Furthermore, this vision food has a high ORAC rating. (creativitequebec.ca)
  • This basically means that a food with a good ORAC rating has high antioxidant content. (creativitequebec.ca)
  • Superfoods will generally measure high on the ORAC scale because of their high antioxidant content. (amaraq.com)
  • Although free radicals are a normal by-product of cellular activity and it's impossible to avoid oxidative stress altogether, oxidative stress can be exacerbated by environmental factors such as air pollution, smoking, radiation exposure, alcohol consumption and high sugar/ high fat diets. (redespresso.com)
  • High milk consumption might shorten life span through increased oxidative stress. (medscape.com)
  • Dietary antioxidant intake, especially in women, seems to modify the elevated death rate associated with high milk consumption. (medscape.com)
  • High milk consumption has long been promoted as strengthening bone and reducing the likelihood of fragility fractures. (medscape.com)
  • However, we recently demonstrated a higher risk of fracture with high daily milk consumption in women. (medscape.com)
  • [ 1 ] Mortality rates were also increased in both women and men with high milk consumption. (medscape.com)
Peroxyl1
  • Azo-initiators are considered to produce the peroxyl radical by heating, which damages the fluorescent molecule, resulting in the loss of fluorescence. (wikipedia.org)
Body23
  • Free radicals cause oxidative stress on the cells of the body. (traversebayfarms.com)
  • This can be a really helpful idea for assisting you to protect your body from carcinogens and free of charge radicals that lead to most cancers. (upshak.com)
  • This composition ensures that the cells protect against free radicals and slow down or prevent critical processes in the body! (chokeberryplus.com)
  • Sea buckthorn helps the body use oxygen efficiently and increases overall energy. (theherbsplace.com)
  • This is accomplished by reducing the damaging effects of rogue free radical agents that breakdown healthy tissues and eye cells in the body. (creativitequebec.ca)
  • These foods are also good at neutralizing free radical agents in the body according to scientific lab tests done in test tube experiments. (creativitequebec.ca)
  • This not only helps your body fight free radicals but also keeps you healthy, active and full of life. (wellbeingnutrition.com)
  • Due to its antioxidant benefits, Sangre de Drago can remove several free radicals in our body that can cause tumor growth or lead to cancer. (greenlivingtribe.com)
  • The Dieticians of Canada note that recommendations will vary based on a person's training, body composition, health, and nutrient requirements, but a general guideline is to eat approximately 20 percent of your daily caloric intake from essential fatty acids and minimize your consumption of saturated fat to around 10 percent. (runsmartonline.com)
  • Aerobic exercise is a type of exercise during which the body uses a lot of oxygen to produce the energy needed for the exercise as well as the body's metabolic process. (forpro-healthandpower.com)
  • When doing aerobic exercise, the body uses a lot of oxygen to produce the energy required for the exercise. (forpro-healthandpower.com)
  • The body produces the energy it needs by using oxygen to burn the fats and carbohydrates available to it. (forpro-healthandpower.com)
  • We talk about anaerobic exercise when the amount of oxygen available to the body is not enough to produce the energy the muscles require. (forpro-healthandpower.com)
  • In the absence of oxygen our body can only use carbohydrates to generate energy. (forpro-healthandpower.com)
  • However, because ORAC values are measured in a test tube, they may not have the same effect in the body. (yiistech.com)
  • Some LDL cholesterol variants have a higher propensity to oxidise, which occurs when they come into contact with free radicals in your body. (yiistech.com)
  • While some of these free radicals are from natural chemical reactions of our body turning food into energy, there are also other contributing factors. (msfullhair.com)
  • So the question becomes how to stop this free radical activity in our body? (msfullhair.com)
  • Nitrates can help open up the blood vessels in the body, increasing blood flow and delivery of oxygen around the body. (askmen.com)
  • When a body is attacked by a large number of free radicals it is under oxidative stress. (healthychocolates.com)
  • Thus, the free radicals are absorbed, and are no longer a danger to the body. (healthychocolates.com)
  • this is why it can fight free radicals, which affect the heart, brain, and virtually any tissue in the body. (brainreference.com)
  • Urban city air pollution, cigarette smoke, and food-related pesticides and chemical fertilizers greatly increase the production of harmful body free radicals. (aolife.io)
DPPH1
Selected antioxidant properties1
  • Isotonix Maximum ORAC is intended to be used for its specially selected antioxidant properties. (shopglobal.com)
Vegetables6
  • Increased consumption of fruits and vegetables is considered as closely related to protection of human health and wellbeing. (aprifel.com)
  • Human system benefi ts from fruit and vegetables, the intake of which is also related with anti-nutrients such as the consumption of low-molecular antioxidant substances. (aprifel.com)
  • You will also gain insight into the specific health benefits of açaí and similarly potent fruits and vegetables-and their unrivalled power to combat free radical damage and the killer diseases of aging. (lifeextension.com)
  • [11] Consequently, packaging of fresh fruits and vegetables contains an ≈8% oxygen atmosphere. (wikipedia.org)
  • Multiple logistic regression models based on TAC of individual food groups showed that consumption of fruits and vegetables with higher TAC (molTE/100 g) was associated with a significantly decreased risk of breast cancer. (who.int)
  • In Scandinavia, consumption of milk and of fruits and vegetables displays a wide range in intake. (medscape.com)
Refers1
Food3
  • and 4) there is no evidence that ORAC values have any biological significance following consumption of any food. (wikipedia.org)
  • in other words, how good the food is at mopping up damaging Free Radicals that are responsible for much cell damage and disease. (gillianmckeith.com)
  • Exposure to oxygen and sunlight are the two main factors in the oxidation of food, so food is preserved by keeping in the dark and sealing it in containers or even coating it in wax, as with cucumbers. (wikipedia.org)
5,0001
  • 23 Scientists at the US Department of Agriculture advise that we ingest foods equivalent to 3,000-5,000 ORAC units per day in order to maintain optimal antioxidant protection in bodily tissues and plasma 24,25 -a number that may be too low . (lifeextension.com)
Fruits3
  • Research suggests that the possibility of human plasma antioxidant defences can be intensively increased in response to the consumption of certain types of fruits. (aprifel.com)
  • This increase occurs after consumption of larger portions of fruits of at least 200g. (aprifel.com)
  • It is believed that a signifi cant effect of blueberry consumption compared with red grapes fruit on plasma TAC increase may be due to the higher concentration of anthocyanin in these fruits. (aprifel.com)
Foods6
  • They may also include foods that are not commonly eaten as a way of encouraging their consumption. (gillianmckeith.com)
  • A balanced diet including antioxidant- rich foods is the best way to balance the intake of it and sustain its consumption in the long-term. (wellbeingnutrition.com)
  • Luckily, many healthy, depression-targeting foods exist for your consumption. (youngandraw.com)
  • Also, it's important to note that even though antioxidant foods or substances give away their electrons, they don't become free radicals themselves. (msfullhair.com)
  • By consuming antioxidant foods, you can prevent free radical activities from continuously damaging our follicle cells. (msfullhair.com)
  • The US Department of Agriculture has published a report detailing the ORAC values of various foods. (healthychocolates.com)
Antioxidant capacities1
  • One benefit of using the ORAC method to evaluate substances' antioxidant capacities is that it takes into account samples with and without lag phases of their antioxidant capacities. (wikipedia.org)
Unhealthy2
  • AO Life contains nature's most potent antioxidant boost to meet your daily needs in fighting against unhealthy free radicals from constant exposure to today's polluted environment and unhealthy lifestyles. (aolife.io)
  • It is a direct measure of how efficiently an antioxidant can eliminate dangerous free radicals and reduce unhealthy oxidative stress. (aolife.io)
Substance1
  • however, ORAC-EPR, electron paramagnetic resonance-based ORAC method directly measures the decrease of AAPH-radical level by the scavenging action of the antioxidant substance. (wikipedia.org)
Cherries2
  • It also was shown that consumption of sweet Bing cherries has a clear effect on plasma TAC. (aprifel.com)
  • Tart cherries are a natural source of melatonin, the "sleep hormone," and the consumption of cherry juice has been shown in research to boost the sleep time of insomnia sufferers. (askmen.com)
Immune1
  • These ingredients will help protect you from free radical damage, maintain your immune system and provide extra energy. (theherbsplace.com)
Extracts2
  • In the search for optimal defense against free radicals, scientists have focused intensely on berry extracts. (lifeextension.com)
  • Q. As you stated many times, ORAC values may be over rated, however, I would like to know if you know if such has ever been determined for grape seed extracts and dark chocolate that has not been alkali processed? (raysahelian.com)
Inflammation2
  • This fruit also contains ellagic acid and rutin, which are chemicals that fight inflammation-causing free radicals. (youngandraw.com)
  • This chain reaction of free radicals is called oxidative stress and causes all kinds of health issues from chronic inflammation such as arthritis, cardiovascular disease, premature aging, an autoimmune disease ( alopecia areata being one of them) and contributes to general hair loss by affecting healthy follicle cells. (msfullhair.com)
Values2
  • Moreover, the relationship between ORAC values and a health benefit has not been established. (wikipedia.org)
  • Rather than going out of one's way to add up, count, and balance ORAC values, one should focus on ingesting a wide variety of beneficial plants and herbs. (raysahelian.com)
Cancer3
  • Cancer Prevention: One of the main causes of cancer is the development of free radicals that damages the DNA of healthy cells. (creativitequebec.ca)
  • Free radicals are believed to be a major cause for cancer and other diseases. (healthychocolates.com)
  • RÉSUMÉ Des données de plus en plus nombreuses indiquent que les antioxydants alimentaires ont des effets favorables sur la réduction du risque de cancer. (who.int)
Superfoods1
  • Generally, superfoods are considered super because their regular consumption can create a positive impact on health, especially in combination with a healthy balanced diet. (amaraq.com)
Occurs1
Supplements1
  • The use of natural vitamin E isomers, tocotrienols (closely related to vitamin E in chemical structure), and vitamin C in ORAC supplements can contribute to an antioxidant network inside cells, which offers far more protection than the use of a single agent alone. (shopglobal.com)
Chokeberry2
  • The chokeberry mother juice is thus free of additives and consists of 100% fruit juice . (chokeberryplus.com)
  • No. However, excessive consumption of chokeberry affects the digestive tract. (chokeberryplus.com)
Grape juice1
  • 1999) The antiplatelet and antioxidant benefits, and improved endothelial function, are consistently seen with routine grape juice consumption. (bodybio.co.uk)
Higher2
  • Uncooked chocolate has a really higher ORAC quotient. (upshak.com)
  • Honey consumption is higher in developed countries, where the home production does not always cover the market demand. (onlinepdfcatalog.com)
Biological2
  • Because no physiological proof in vivo existed in support of the free-radical theory or that ORAC provided information relevant to biological antioxidant potential, it was withdrawn in 2012. (wikipedia.org)
  • While other analytic methodologies may be used, ORAC is often considered preferable because of its biological relevance to antioxidant action in vivo (in living organisms). (lifeextension.com)