Quercetin, Cancer Killers – The Most Effective Supplements For Killing Cancer! Quercetin occurs naturally in a variety of brightly colored plant-based foods. This flavonoid compound has antioxidant and anti-inflammatory properties and may help lower the risk of cancer and heart disease while decreasing blood pressure. A diet that includes plenty of foods with a high content of quercetin will also be rich in dietary fiber, vitamins, minerals and other antioxidant compounds.
Stir in Capers
According to the U.S. Department of Agriculture, capers contain one of the highest natural concentrations of quercetin. Canned capers, which are the salt-brined flower buds of the Capparis spinosa plant, contain 173 milligrams of quercetin in every 3.5 ounces, or 14.8 milligrams in a typical 1-tablespoon serving. Use capers in salads, dips, pasta dishes and as a flavor-enhancing addition to sauces for seafood or poultry. Capers are high in sodium. To decrease their sodium content and control the saltiness they add to foods, rinse them thoroughly before using.
Sprinkle on Onions
All types of onions are high in quercetin. Raw red onions contain 33.4 milligrams of the compound in every 3.5 ounces, while raw white onions supply 21.4 milligrams, scallions have 18.3 milligrams and fresh sweet onions contain 14.8 milligrams. Cooked onions have 24.4 milligrams of the compound in each 3.5-ounce serving. To get the most quercetin out of your onions, use them promptly after purchase. Onions can lose more than 25 percent of their quercetin content if they’re stored over a week.
Fill Up on Fruit
Fruits with a dark red or blue hue have the highest quercetin content. These include cranberries, which contain 15 milligrams in every 3.5 ounces; raw black plums, with 12.5 milligrams per serving; and blueberries, which have 5 milligrams. Chokeberries, black currants, apples and cherries are also good sources of quercetin. A 2002 article published in “Nutrition” reported that foods prepared by boiling lost a significant amount of quercetin due to contact with heat and water. Whenever possible, eat quercetin-rich fruits raw or only lightly cooked.
Vary Your Veggies
Raw hot green chile peppers have nearly 15 milligrams of quercetin in every 3.5 ounces. Red leaf lettuce contains 12 milligrams per serving, while raw kale has 7.7 milligrams and cooked asparagus 7.6 milligrams in a 3.5-ounce serving. Romaine lettuce, chicory greens, raw spinach, sweet peppers, snap beans and raw broccoli range in quercetin content from 2.4 to 5 milligrams contained in 3.5 ounces of the food.
How Much Quercetin Do You Take for an Anti-inflammatory Response?
Quercetin is a flavonoid antioxidant found in many fruits and vegetables. It serves a variety of important health effects and has been used successfully for its cholesterol-lowering, anti-cancer and anti-inflammatory benefits. Aside from dietary sources, you can obtain quercetin in supplement form and it can often be found in formulas together with other anti-inflammatory compounds, such as bromelain, grape seed and green tea. Consult your physician before taking any supplement.
Quercetin prevented progression of chronic obstructive pulmonary diseases, COPD, in a study conducted at the Department of Pediatrics and Communicable Diseases, University of Michigan. In the study, researchers gave laboratory animals 0.5 milligrams per day for 10 days and noted improved lung elasticity, decreased oxidation and decreased inflammation. Quercitin also decreased levels of tissue-damaging enzymes known as matrix metalloproteinases. The study was published in the September 2010 issue of the journal “Respiratory Research.”
Researchers at the College of Veterinary Medicine, Chungbuk National University, Korea, reported that quercetin doses of 10 milligrams per kilogram of body weight — which is a higher than normal for human use — produced anti-inflammatory effects in laboratory animals. Scientists administered the high dose of quercetin using a tube-feeding method called gavage once per day for three days, as a way to saturate the tissues. Quercetin exerted its effects, in part, by inhibiting nitric oxide production in white blood cells known as macrophages, reducing nitric oxide levels by half. The antioxidant also reduced the inflammatory response involving neutrophils, another type of white blood cell. Researchers concluded significant anti-inflammatory potential for quercetin in this preliminary animal study, published in the September 2008 issue of the “Journal of Veterinary Science.”
Quercetin has been used to reduce inflammation in prostate conditons for its anti-inflammatory and anti-testosterone effects, according to Jeannette Potts, M.D., in her book “Genitourinary Pain and Inflammation: Diagnosis and Management.” The antioxidant decreases levels of inflammatory prostaglandins and increases levels of prostatic endorphins — natural pain-relieving molecules.