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Health Benefits of Artichokes

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By Dr. Mercola • www.ProHealth.com • July 1, 2017


Health Benefits of Artichokes
Reprinted with the kind permission of Dr. Mercola.

By Dr. Mercola
 
You've probably tasted artichokes and enjoy them in soups and on pizza for their zesty, unique flavor. But you may not be aware there are artichoke supplements, which are helpful as a powerful probiotic and antioxidant. The probiotic part helps your gut regain equilibrium, while the antioxidants are instrumental in fighting free radicals that cause many diseases, including cancer, heart attack and Alzheimer's. A plethora of nutrients simultaneously benefit your health in many other ways.
 
For a little background on this interesting plant, there are two botanical varieties: the globe artichoke, suggested for culinary use, is Cynara scolymus and the cardoon is Cynara cardunculus. They're beautiful plants, depicted by artists for their interesting construction and vibrant colors: pale gold on the inside; thick rubbery "petals" in shades of pale green, sometimes tinged with purple, on the outside.
 
If the plant reminds you of a thistle, it's because it belongs to the same perennial family. Artichoke history springs from the Mediterranean, with a surge in popularity in the 1500s after having waned following the fall of Rome. Today, California has the perfect climate to produce most of the artichokes grown in the U.S. Organic Facts explains how the edible part of artichokes are the buds that form within the flower head, before it fully blooms:
 
"Timing is key in cultivating them, as they turn hard and nearly inedible once the flower has fully bloomed. Also, one of the most sought after parts of the thistle is the "heart," which is the base from which the other buds spring. It is often considered a delicacy, or at least the most delicious part of the plant, and is typically more expensive."1
 
Artichoke — A Most Versatile Plant
 
One of the most sought-after aspects of this unique food is its amazing versatility. Cooked artichoke leaves can be used individually as "artichips" for dipping salsa or any creamy concoction you love instead of tortilla chips. Use them as an edible bowl, serving cold or hot soups or chicken salad. The hearts are great sliced up as a pizza topping or in stir-fries. You can pickle or ferment artichokes with other veggies, and they're also good roasted, or chopped up and added to soups, casseroles or quiche.
 
The fact that artichoke supplements are available hints at a little-known fact: They contain silymarin (also contained in milk thistle), which provides even more antioxidants than blueberries, dark chocolate and red wine, per serving,2 and artichoke ranks No. 7 on the U.S. Department of Agriculture's (USDA) top 20 antioxidant-rich foods list. Depending on which list you look at, artichokes are nearly always in the top 10 most antioxidant-rich foods.3
 
You've heard about artichoke hearts, which are very healthy on their own, but Self Hacked notes that artichoke leaf extracts contain more health benefits than eating the artichoke heart alone.4 Speaking of hearts, one study shows that the globe artichoke variety has a better balance between potassium and sodium than many foods, which is important for optimal health.
 
Artichokes and Blood Pressure, Brain Benefits and More
 
While the luteolin in artichokes reduce cholesterol, which can contribute to plaque formation in your arteries, it also increases eNOS activity, the enzyme responsible for producing nitric oxide, which acts to widen your blood vessels for decreased blood pressure (although in 2009, researchers weren't sure how it worked).5 Enzymes known as metalloproteinases are major contributors to heart disease. Self Hacked explains:
 
"These enzymes play a key role in plaque accumulation and rupture in the arteries, which can trigger heart attacks. MMP-9, a metalloproteinase, is involved in the body's natural process of tissue repair and breakdown. It breaks down proteins, which can contribute to disease progression. High levels of metalloproteinase 9 (MMP-9) are also correlated with heart attack and stroke. Artichoke (cardoon) extract inhibits the MMP-9 activity in rats, likely due to its antioxidant properties."6
 
Ocean Mist,7 the California farm called the "artichoke capital of the world," notes a study on elderly individuals who were given artichoke supplements, after which researchers determined that the vitamin K they contain — 12 percent of the Dietary Reference Intake (DRI) — has important functions in the brain, such as sulfotransferase activity, as well as the activity of a growth factor/tyrosine kinase receptor. Additionally:
 
"The hypothesis is now proposed that vitamin K deficiency contributes to the pathogenesis of AD [Alzheimer's disease] and that vitamin K supplementation may have a beneficial effect in preventing or treating the disease. Vitamin K may also reduce neuronal damage associated with cardiovascular disease."8
 
Artichokes contain 107 micrograms of folic acid in every serving, which is more than a quarter of the DRI, serving to protect pregnant women from neural tube defects in their unborn fetuses and other problems related to pregnancy and childbirth, including pre-eclampsia and congenital heart defects.9
 
Beneficial Compounds in Artichokes
 
A myriad of factors (such as optimal and consistent hours of sleep, low sugar intake, and regular consumption of healthy fruits and vegetables) can make or break your body's ability to fight disease. When you eat antioxidant-rich foods like artichoke, your potential for better health is improved. A number of artichoke benefits are listed below:
  • Improved gut health10
  • Lowered blood pressure
  • Stronger bones
  • Enhanced immunity
  • Reduced cholesterol
  • RNA and DNA health
  • Protection against lead toxicity11
  • Weight loss12
  • Heart protection13
  • Improved skin health
  • Indigestion relief
  • Protection against pain reliever overdose14
Some of the star players, when it comes to antioxidants, are the polyphenols, which have chemopreventive properties, meaning they can stop, slow and even reverse cancer. One study showed that properties in artichoke can cause programmed cell death in cancer cells, called apoptosis, halt the formation of new cancer cells and in breast cancer cells, may inhibit their ability to divide without harming normal cells.15 Further:
 
"Artichoke leaf extract also has antitumor effects in mesothelioma (a type of cancer caused by asbestos in tissues that line the lungs, stomach or heart) cancer cells. It reduced cell growth and migration."16
 
The polyphenols in artichokes come largely from quercetin and rutin, two specific antioxidant types that studies have revealed can reduce your risk of developing cancer. Of the multiple clinical findings reporting on the presence of rutin and quercetin in artichokes, one noted their ability to exhibit "mitigating radiation-induced mortality and cytogenetic damage, which may be attributed to the scavenging of radiation-induced free radicals."17
 
Liver function is important for anyone wanting a healthy body, and artichoke helps by boosting the production of bile, which eliminates dangerous toxins and digestive fats due to their cynarin content. Additionally, the aforementioned silymarin which Health Fitness Revolution18 explains "hinders the process of lipid peroxidation from occurring in the cell membranes of liver tissues."
 
Still another study19 showed rutin to be an antimicrobial, antifungal and anti-allergic agent;20 another indicated its capacity to "exhibit significant anti-diabetic activity, presumably by inhibiting inflammatory cytokines, improving antioxidant and plasma lipid profiles."21
 
Rutin was found to also have potential for neurodegenerative disorders, improve endothelial function, increase thyroid iodide uptake without greatly affecting thyroid function, induce bone formation, improve renal function and show therapeutic potential for cognitive deficits, and that's only part of the benefits scientists have uncovered.22
 
Gut Health: An Important Advantage of Artichoke Intake
 
One comprehensive review on artichokes began by saying that artichoke leaf extract was one of the few herbal remedies where both "clinical and experimental trials have complemented each other." While deemed inconclusive in 2015, the study asserted that mentioning the artichoke's digestive and bowel advantages were justified, and that eating it helped to accelerate "gut movement," and supported both fat digestion and vitamin absorption.23
 
Self Hacked24 notes several studies explaining different nuances regarding stomach troubles and the ways eating artichokes can help. Indigestion, bloating, nausea and heartburn are the symptoms which, collectively, define dyspepsia. Even irritable bowel syndrome, which seems much more prevalent in recent years, is alleviated by artichoke consumption. Additionally, both globe and cardoon varieties have been used to treat gout, stomach distress and diabetes.25
 
Compounds in artichoke include luteolin, caffeoylquinic acid, chlorogenic acid, apigenin, sterols and inulin, as well as multiple hydroxybenzoic acids, hydroxycinnamic acids, lignans, flavones and flavonols, according to a study at the University of Granada, Spain's, department of analytical chemistry. Minerals include potassium, magnesium, calcium, sodium, zinc, copper and manganese.26
 
Numerous other compounds and phytonutrients that contribute to artichokes' ability to decrease inflammation and promote gut health have been cited in studies, which in turn relates to cancer prevention, in part by binding toxins for removal from your body. The inulin, in particular, is a sweet-tasting substance that can increase the number of beneficial microorganisms in your intestines. Then there's the fiber, about which Health Fitness Revolution notes:
 
"Oats, step aside. Prunes? Yeah right. Artichoke wears the crown for highest natural fiber content of any vegetable and over most grains. Many people are absolutely shocked to learn that a mere 120 grams of artichoke has over 10 grams of fiber, or nearly half of your daily requirement. Hail to the fiber king!"27
 
Fiber is great, but it's only beneficial if it's actually ingested. As it stands now, the average American consumes only half of the 30 grams (just over an ounce) of dietary fiber recommended by the USDA for men, and the 38 grams recommended for women.28 A single artichoke (about 120 grams) can have a huge impact, as it provides 10.3 grams of fiber.
 
How to Select and Prepare Artichokes
 
When selecting to eat, choose the heaviest and most firm, just as you would when choosing a cabbage; however, there are four sizes, ranging from baby (golf ball sized) to jumbo (softball sized). They should appear fresh rather than dried-out looking. At home, before refrigeration, carve a thin slice off the stem, sprinkle the leaves with water and store in an airtight plastic bag to use within the week.
 
The methods for cooking artichokes vary, and every one of them has an impressive presentation, whether they're stuffed, grilled, steamed or baked. Depending on the way you want to serve them, you may want to cook them first (or not), but first, use a soft vegetable brush under cold water to remove the invisible film produced as the vegetable grows. Use a sharp knife to "top and tail," or slice the stem off (straight if you want them to sit up) as well as the top inch of the leaves so the layers of petals are exposed.
 
If you want, you can use sharp kitchen shears to cut off the "thorns" on the outside of the lower leaves, although they do soften with cooking. However you cook them, cool them completely before refrigeration.
 
• Steamed — You can steam artichokes, stems up, in a double boiler, one of the best ways to retain the most nutrients as they're lost to the water if you boiled them. Boil the water in the bottom pan and allow them to steam, covered, for about 30 minutes if they're small and 45 to 60 minutes for the jumbo variety. Check for doneness with a sharp knife inserted through the base (sort of like a baked potato).
 
• Baked or grilled — Break off the tough outer leaves and, after cutting that inch off the top, spread the petals apart somewhat and drizzle on a little olive oil, balsamic vinegar and sea salt.
 
Next, double wrap them in heavy-duty foil (with the shiny part touching the artichokes) and twist the top to keep heat from escaping, and inserting them into a preheated 425-degree (Fahrenheit) oven. Again, the size determines the baking time, with the smallest ones baking at around 45 minutes and the jumbos for an hour and 15 minutes.
 
• Raw — To use artichokes in the raw, cut the top inch off the petals, then use a spoon to carefully scoop out the "fuzzy" choke without removing the artichoke heart. What's left is a pretty bowl-shaped vegetable, ready for stuffing or adding a dip.

 Sources and References
 
1 Organic Facts 2017
2 The American Journal of Clinical Nutrition 2006
3 Nutri J. 2010;9:3
4, 18, 27 Health Fitness Revolution February 22, 2016
5 J Diet Suppl. 2009:6(4):328-41
6, 24 Self Hacked June 8, 2017
7 Ocean Mist 12 Unexpected Artichoke Health Benefits
8 Med Hypotheses. 2001 August;57(2):151-5
9 BMJ. 2007 March 3;334(7591):464
10 Br J Nutr. 2010 October;104(7):1007-17
11 Pharm Biol. 2013 September;51(91104-9
12 Phytother Res. 2011 September;25(9):1275-82
13 Mol Nutr Food Res. 2008 October;52(10):1147-52
14 Pharm Biol. 2015 February;53(2):167-73
15 Oxid Med Cell Longev. 2015;2015:363827
16 Oncotarget. 2015 July 20;6(20):18134-18150
17 Biomed J. 2014 September-October;37(5):305-13
19, 22 EXCLI J. 2015:14:59-63
20 Expert Opin Investig Drugs. 2013 August;22(8):1063-79
21 Indian J Exp Biol. 2014 July;52(7):720-7
23 Plant Foods Hum Nutr. 2015 December;70(4):441-53
25 J Food Sci. 2012 February;77(2):C244-52
26 Food Chem. 2013 December 1;141(3):2269-77
28 Health.gov Dietary Guidelines for Americans 2005

This article was brought to you by Dr. Mercola.
Founder of the world's #1 natural health site, he gives you the low-down on cholesterol. Discover why you actually need Cholesterol in this FREE report.
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