Polyphenols

ORAC -ORAC stands for Oxygen Radical Absorbance Capacity. It's a lab test that attempts to quantify the "total antioxidant capacity" (TAC) of a food by placing a sample of the food in a test tube, along with certain molecules that generate free radical activity and certain other molecules that are vulnerable to oxidation 

https://www.google.com/search?q=orac&sxsrf=ACYBGNQ89AfaphCbSAFtOXY7fwZWXVIjCA:1578442646571&tbm=isch&source=iu&ictx=1&fir=EL_CtqO_4PaQQM%253A%252C6ygD-G3rsdo14M%252C_&vet=1&usg=AI4_-kRYWIPyQSEf4sooSlezxfpzQOGbSg&sa=X&ved=2ahUKEwjS1vyJ3fLmAhVMsZ4KHc_FACoQ9QEwAHoECAQQAw#imgrc=5xQqs8mNhi6DBM:&vet=1 

https://www.nutraingredients-usa.com/Article/2017/08/18/Saying-goodbye-to-ORAC-was-a-good-thing-for-industry-suppliers-say

Orac no more https://www.huffpost.com/entry/orac-_b_1594115

Organic and conventional Agriculture and polyphenolics

https://www.ncbi.nlm.nih.gov/pubmed/?term=polyphenolic+organic++conventional

Significantly higher levels (p < 0.05) of phenolic compounds were found in organic Extra-Virgin Olive Oil. 

Analysis of 17 polyphenolic compounds in organic and conventional legumes by high-performance liquid chromatography-diode array detection (HPLC-DAD) and evaluation of their antioxidant activity. All organic legumes showed a higher antioxidant capacity with respect to conventional samples with the exception of red and yellow dehulled lentils.

https://www.tandfonline.com/doi/abs/10.1080/09637486.2017.1399258

Phenolics and Carotenoid Contents in the Leaves of Different Organic (had higher) and Conventional Raspberry (Rubus idaeus L.) https://www.ncbi.nlm.nih.gov/pubmed/31591360

The effect of organic and conventional farm management on the allergenic potency and bioactive compounds status of apricots (Prunus armeniaca L.) The main conclusion is that some organic apricots, despite their better quality, would not be recommended for consumption by allergy sufferers.

Evaluation of polyphenolic content and antioxidant activity in two onion varieties grown under organic and conventional production systems. Organic cultivation practices resulted in significantly higher levels of potential bioactive compounds in onion.

Anti-oxidants in other foods

Anti-oxidants are not only confined to nuts and seeds but are also present in other grains, fruits and vegetables. Polishing  or refining the grains also strip anti-oxidants and other nutrients from the food.

So to be healthy eat unprocessed, unrefined foods. White wheat flour, white rice, corn starch, corn syrup are highly processed foods that should be avoided. Consuming these refined processed foods is the main cause of diabetes, hypertension, cholesterol, cancer, overweight, obesity  and other ageing and oxidation-related diseases.

Read the next interesting fact about the danger of eating refined foods.

Amla, also known as Indian gooseberry, is one of the most antioxidant rich foods on Earth. In a test of over 3,000 foods, amla turned out to be the number-one antioxidant-rich food. Amla powder can be blended into a morning smoothie for a hefty antioxidant boost.

Amla may be effective in treating diabetes, and in an in vitro study, amla demonstrated nearly the same ability as a leading chemotherapy drug in cutting tumor growth, and the amla powder preserved and even enhanced normal cell growth.

Amla has been used in Ayurvedic, Chinese, and Thai medicine for centuries, and preclinical studies have shown that it possesses many disease-combatting properties. It has also been used as a snake venom neutralizer and hair tonic, and may be an effective component in homemade mouthwash.”

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6160559/ (regulations labeling) 

https://nutritionfacts.org/video/antioxidants-in-a-pinch/

 https://phytochem.nal.usda.gov/

Good article on - cooling inflammation in a natural way.

Natural Antioxidant Activity of Commonly Consumed Plant Foods in India: Effect of Domestic Processing Natural Antioxidant Activity of Commonly Consumed Plant Foods in India: Effect of Domestic Processing 

 Phenolics in different foods

https://chemistry.tutorvista.com/organic-chemistry/phenolic-compounds.html

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Polyphenols in heman health

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