Nutrition Information |
|
||
Dietary Sources of Glutathione
DIETARY SOURCES OF GLUTATHIONE: Glutathione (GSH) is an antioxidant and detoxifying agent whose protective role has been demonstrated in numerous clinical studies. GSH is synthesized rapidly in the liver, kidneys, and other tissues of the body, including the gastrointestinal tract. This process is effected by aging and disease, as both of these conditions result in reduced tissue and blood levels of glutathione. Dietary forms of glutathione are efficiently absorbed into the blood, however the same is not true for glutathione supplements in humans. When healthy subjects were given a single dose of up to 3,000 mg of glutathione researchers found there was no increase in blood glutathione levels. (Witschi A, Reddy S, Stofer B, Lauterburg BH. The systemic availability of oral glutathione. Eur J Clin Pharmacol 1992;43(6):667-9.) The authors of this study concluded "it is not feasible to increase circulating glutathione to a clinically beneficial extent by the oral administrating of a single dose of 3 g of glutathione." Johnson and coworkers (Johnston CJ, Meyer CG, Srilakshmi JC. Vitamin C elevates red blood cell glutathione in healthy adults. Am J Clin Nutr 58:103-5, 1993) found that blood glutathione levels rose nearly 50% in healthy individuals taking 500 mg of vitamin C daily. Vitamin C facilitates an increase in blood glutathione levels by supplying the body with a nutrient that is critical to the manufacture of it. In addition, to vitamin C, dietary sources of glutathione and several other nutritional compounds can help increase glutathione levels including N-acetylcysteine (NAC), alpha-lipoic acid, glutamine, methionine, and undenatured whey protein (Bounous, G., and Gold, P., The biological activity of undenatured dietary whey proteins [Immunocal]: role of glutathione, Clin. Invest. Med. (1991) 14(4):296-309.). N-acetylcysteine has been used in combination with glutamic acid (or glutamine) and glycine (Clark, J. at www.cfsn.com) and in addition, NAC has been studied in combination with dietary proteins (Quig, D., Cysteine metabolism and metal toxicity, Alternative Medicine Review (1998) 3(4):262-270.). HERBS: The herb milk-thistle, an excellent source of the antioxidant compound silymarin may help to prevent glutathione depletion in the liver. Silymarin is many times more potent in antioxidant activity than the better known antioxidant vitamins E and vitamin C. The protective effect of silymarin against liver damage has been demonstrated in a number of scientific studies. Silymarin has been shown to protect against liver damage by extremely toxic chemicals (this toxicity is mediated by their ability to produce dangerous and destructive unstable compounds called free radicals) including amanita toxin, carbon tetrachloride, galactosamine, and praseodymium nitrate. Silymarin enhances detoxification in the liver by preventing the depletion of glutathione. Glutathione in the liver is essential to the liver's ability to detoxify. The higher the liver glutathione content, the greater the liver's capacity to detoxify harmful chemicals. Chemicals which can damage the liver, (including alcohol and acetominophen), cause the concentration of glutathione in the liver is substantially reduced, making the hepatocytes (liver cells) susceptible to damage. Silymarin not only prevents the depletion of glutathione induced by alcohol and other toxins (Chrungoo VJ et al. Indian J Exp Biol. 1997 Jun;35(6):611-7.), but can increase the level of glutathione in the cells of the liver (hepatocytes) (Valenzuela A et al. Planta Med. 1989 Oct;55(5):420-2.), and possibly by up to 35%. Curcumin may also be useful as an agent to increase tissue glutathione levels (Dickinson, D.A., Iles, K.E., Zhang, H., Blank, V., and Forman, H.J., Curcumin alters EpRE and AP-1 binding complexes and elevates glutamate-cysteine ligase gene expression, FASEB J. (2003) 17(3):473-475.) Alpha Lipoic Acid has also demonstrated it's ability to increase glutathione levels and act as a potent antioxidant in numerous scientific studies. VITAMINS & MINERALS: vitamin B6, riboflavin, and selenium are required in the manufacture of glutathione, and adequate dietary consumption of foods rich in (or supplementation with) these vitamins and minerals can help the body to optimize glutathione production. MILK PRODUCTS & MEAT:Dietary glutathione occurs in highest amounts in fresh (uncooked) meats, in moderate amounts in certain raw fruits and vegetables, and is absent or found only in small amounts in grains and pasteurized dairy products (JONES DP, COATES RJ, FLAGG EW, et al. (1992) Glutathione in Foods listed in the National Cancer Institute's Health Habits and History Food Frequency Questionnaire. Nutr Cancer 17: 57-75 ). Foods richest in sulfur-containing amino acids are usually the best source of glutathione. Although undenatured whey protein is one of the best precursors (building blocks) for glutathione, it contains only moderate levels of naturally occuring glutathione. Freshly prepared (rare or raw) meats, raw (unpasturized) milk, and raw eggs are also an especially rich source of glutathione. Cooking reduces glutathione content, and storage also impacts the glutathione content of foods. In human breast milk put aside for later use by breast-fed babies, a 73-79% loss of glutathione occurred when the milk was either kept at room temperature or refrigerated for two hours. (Ankrah NA, Appiah-Opong R, Dzokoto C. Human breastmilk storage and the glutathione content. J Trop Pediatr. 2000;46(2):111-3.) FRUITS & VEGETABLES: Fresh fruits and vegetables provide excellent levels of glutathione, but cooked foods contained far less or none at all, and highly processed foods contain less than minimally processed cooked foods. Glutathione assays of fruits and vegetables may yield contrasting results because glutathione levels vary both diurnally (KOIKE S, PATTERSON BD (1988) Diurnal variation of glutathione levels in tomato seedlings. Hort Sci 23: 713-714; SCHUPP R, RENNENBERG H (1988) Diurnal changes in the glutathione content of spruce needles (Picea abies L.) Plant Sci 57: 113-117 ) with the stage of development of the plant (EARNSHAW BA, JOHNSON MA (1987) Control of wild carrot somatic embryo development by antioxidants. Plant Physiol 85: 273-276;), and due to various environmental factors (DE KOK LJ, DE KAN PJL, TANCZOS OG, KUIPER PJC (1981) Sulphate-induced accumulation of glutathione and frost-tolerance of spinach leaf tissue. Physiol Plant 53: 435-438; WISE RR, NAYLOR AW (1987) Chilling-enhanced photooxidation. The peroxidative destruction of lipids during chilling injury to photosynthesis and ultrastructure. Plant Physiol 83: 272-277). Asparagus contains more glutathione than all other fruits and vegetables analyzed to date. (Jones, D.P. and others: Glutathione in foods listed in the National Cancer Institute's health habits and history food frequency questionnaire, Nutrition and Cancer 17 (1), p. 57, 1992.) In a study which compared the overall antioxidant activity of potatoes, bell peppers, carrots, onions and broccoli, potatoes ranked second highest after broccoli. Per serving, asparagus, avocadoes, asparagus, squash, okra, cauliflower, broccoli, potatoes, spinach, walnuts, garlic, and raw tomatoes have the highest glutathione content compared to other vegetables and are particularly rich dietary sources of glutathione (please see the Table 1. below). Table 1. Comparison of Glutathione in Fresh vs. Cooked Foods Food Glutathione Content (1). JONES DP, COATES RJ, FLAGG EW, et al. (1992) Glutathione in Foods listed in the National Cancer Institute's Health Habits and History Food Frequency Questionnaire. Nutr Cancer 17: 57-75 (2). BLOCK G, DRESSER CM, HARTMAN AM, CARROLL MD (1985) Nutrient sources in the American diet: Quantitative data from the NHANES II Survey. I. Vitamins and Minerals. Am J Epidemiol 122: 13-26 (3). BLOCK G, DRESSER CM, HARTMAN AM, CARROLL MD (1985) Nutrient sources in the American diet: Quantitative data from the NHANES II Survey. Macronutrients and Fats. Am J Epidemiol 122: 27-40 (4) SIMOPOULOS AP, NORMAN HA, GILLASPY JE (1995) Purslane in human nutrition and its potential for world agriculture. World Rev Nutr Diet 77: 47-74 Posted at: http://www.nutritionadvisor.com/glutathione_foods.php; http://www.nutritionadvisor.com/biography.php Dr. Petrosino received his Baccalaureate degree from Penn State University in 1975, pursued his Masters degree with honors at Penn State in 1978, and graduated Summa Cum Laude with a Doctorate in Nutrition from Lasalle University (Mandeville) in 1995. His doctoral dissertation examined the effects of race and poverty on cardiovascular health. He was an Adjunct Professor of Nutrition at LaSalle University (1995-1999); a member of the National Institutes of Health (NIH) Consensus Development Committee on Cardiovascular Disease; a Professional Member and Charter Member of the American Heart Association Scientific Council on Epidemiology and Prevention of Cardiovascular Disease; a Professional Member and Charter Member of the American Heart Association Scientific Council on Nutrition, Physical Activity and Metabolism; a Professional Member of the American Heart Association Interdisciplinary Working Group on Functional Genomics and Translational Biology; an Allied Health Care Practitioner member of the American Preventive.....
Look For
MORE RESOURCES: Group occupying Maui beach fronting luxury resorts packs up after vacation rental win Hawaii News Now 'Prioritizing our residents': Maui lawmakers push bill to phase out thousands of vacation rentals KITV Honolulu Vacation Rental Prices Come Down From Pandemic High The Vineyard Gazette - Martha's Vineyard News Governor signs measure giving counties authority to convert vacation rentals into housing Hawaii News Now Maui Mayor Richard Bissen announces bill to phase out vacation rentals in apartment districts Maui Now Hawaii leaders have new power to limit Airbnbs, vacation rentals Los Angeles Times Maui Mayor Takes 'Bold Step' To Eliminate 7000 Short-Term Rentals By 2026 Honolulu Civil Beat Hawaii legislature supports Maui aid, approves vacation rental bill Courthouse News Service 7000 Maui short-term rentals could be eliminated under new county bill Hawaiipublicradio Bill aimed at short-term vacation rentals passes Hawaii Tribune-Herald Bissen quick to offer bill to regulate Maui vacation rentals Honolulu Star-Advertiser Owners selling vacation rentals from under guests is a growing problem The Seattle Times New Hawai'i law aimed at tackling illegal short-term rentals, provides counties with home rule authority Big Island Now Guesty, Short-Term Rental Software Provider, Acquires Rentals United Skift Travel News Hawaii lawmakers take aim at vacation rentals after Lahaina wildfire amplifies Maui housing crisis ABC News Expecting new state law, Maui County seeks to phase out thousands of vacation rentals Hawaiipublicradio Don Miller | The battle over short-term vacation rentals comes to Maui Santa Cruz Sentinel Hawaii governor pledges to sign vacation rental regulation bill Courthouse News Service Small business owner questions business tax receipts for vacation rentals in Jacksonville Beach FirstCoastNews.com WTLV-WJXX Pass Article 59 And Then Address Nuisance… Nantucket Current Hawaii to Offer Tax Amnesty to Switch Short Term Rentals to Long Term CPAPracticeAdvisor.com Hawaii Clears Path! Counties Can Now Ban Vacation Rentals Beat of Hawaii Vacation Rentals: How to Make Your Stay Sustainable The New York Times FL lawmakers pass state regulations on short-term vacation rentals; how will it play out? • Florida Phoenix Florida Phoenix Thousands Of Maui Vacations Rentals First To Be Cut Beat of Hawaii Vacation rental committee to be held next week WDEF News 12 A Statewide Ban On Vacation Rentals? The Idea Is Gaining Steam After The Maui Fires Honolulu Civil Beat 100+ Best Summer Vacation Rentals to Book Now Condé Nast Traveler Oceanside approves cap and new limits on short-term vacation rentals The San Diego Union-Tribune Ask Amy: Family friends poach vacation rental Chicago Tribune New era of policing vacation rentals in Santa Cruz County pushes complaints, violations into public view Lookout Santa Cruz These Are the Top 10 Vacation Rentals on Vrbo for 2024 Travel + Leisure Business Report: Vacation rentals Hawaii News Now Hawaiʻi Governor Signs Short-term Rental Bill Big Island Video News Guesty expands market leadership with acquisition of Rentals United - TravelDailyNews International TravelDailyNews International Lawmakers passed bill to shift control of vacation rentals to state Tallahassee Democrat The effort to get the FL governor to veto short-term vacation rental bill accelerates • Florida Phoenix Florida Phoenix Green Won't Issue Vacation Rental Moratorium For Maui Honolulu Civil Beat Senator wants uniform standards for short-term vacation rentals, but it seems to be a tough sell • Florida Phoenix Florida Phoenix In the Public Interest: New era of policing vacation rentals in Santa Cruz County pushes complaints, violations into ... Lookout Santa Cruz Big Island Lawmakers Attempt To Rein In Short-Term Vacation Rentals Honolulu Civil Beat This year's version of a short-term vacation rental bill now goes to the full House • Florida Phoenix Florida Phoenix Park City Lodging wins Best of State for vacation rentals a sixth year in a row - Utah Business Utah Business Hawaii News Now at 4:00 p.m. Hawaii News Now Bill Allowing Hawaiʻi Counties To Phase Out Vacation Rentals Gets Senate Hearing Big Island Video News 5 Desired Features for Vacation Rentals Real Estate State lawmakers advancing short-term vacation rental measure News 13 Orlando Some Florida mayors are getting testy about a contentious vacation rental bill • Florida Phoenix Florida Phoenix Florida's Vacation Rental Bill awaits Gov. Ron DeSantis' review. St. Augustine Record As vacation rentals eat up housing in South Florida, controlling them might become harder | Opinion Miami Herald Savannah's misinterpretation of STVR ordinance makes it toothless Savannah Morning News The latest version of a vacation rental bill gets its first hearing in Tallahassee • Florida Phoenix Florida Phoenix This affluent Bay Area county may put hard limit on vacation rentals for first time San Francisco Chronicle Hawaii governor wants 3000 vacation rentals converted to housing for Maui wildfire survivors The Associated Press Floating Up House, X-Men Mansion, Purple Rain: Airbnb Icons For Rent Los Angeles, CA Patch Marin County passes new rules limiting vacation rentals San Francisco Chronicle Bill would regulate short-term vacation rentals, give state more power WPTV News Channel 5 West Palm Best Greater Palm Springs Area Vacation Rentals to Book Palm Springs Life |
RELATED ARTICLES
Understanding Vegetarianism Like the Sun, Moon, and Earth, there are three kinds of vegetarians in existence: ovo-lacto, a vegetarian that eats vegetables, fruits, grains, legumes, seeds and nuts, as well as eggs and dairy products. Lacto, a vegetarian that eats everything the "ovo-lacto" does, except eggs. What is Organic Food? "Organic" has some quite specific legal definitions in most developed countries.In the U. Fluoride: A Plot to Dull the American Mind During the Second World War, the Germans used fluoride as a tranquilizer in the Russian prison camps. At the same time, American members of the Communist Party met to discuss adding fluoride into the water supply, in order to bring about overall lethargy and thus ease the introduction and eventual dominance of Communism in America. Enjoy The Holidays Healthfully How To Have A Healthy ThanksgivingEnd of the year holidays are a time when our eyes are often bigger than our stomach! Many of us wonder how we will get through them without gaining 5 or 10 pounds. So how can you feel great after parties and meals instead of overstuffed and uncomfortable?Your stomach cannot miraculously hold more food just because it's the holidays. Functional Foods Are Becoming More Popular... Established in 1989 by Stephen DeFelice, "Foundation for Innovation in Medicine" defined "Nutraceutical", as a food, dietary suppplement, or medical food that has a medical or health benefit, including the prevention and treatment of disease. Today, it is hard to separate the definition of Nutraceuticals and Functional Foods. The Role of Nutrition in Martial Arts, Police, Military Personnel For a considerable amount of time, nutrition has not played a prominent role in the life of many martial artists, police, and military personnel as a means of improving performance. Top athletes are always looking for an edge. Who Said Bananas Are Not Good For You? After reading this, you'll never look at a banana in the same way again.Bananas: Containing three natural sugars - sucrose, fructose and glucose combined with fibre, a banana gives an instant, sustained and substantial boost of energy. Sugar Lovers Beware It would be fair to assume that almost everyone on the planet loves sugar and sweet foods. Processed sugar is in many products and is a key ingredient for baking. What A 6-Month Old Can Teach Us About Our Eating Habits Recently, I had the pleasure of seeing my 6-month old niece Rianna in Las Vegas. She has just started eating "real" baby food beyond the formula in her bottle, and I got a kick out of feeding her one of her meals of squash. Safely Transitioning Off Meal Replacement Plans Meal replacements have been part of the diet landscape for decades. They have helped numerous people lose weight, and more importantly, they have helped people learn the difference between healthy and unhealthy eating choices. Most of Us Talk and Think About Nutrition and Exercise as a Distant Activity to be Started Some Day! If you do not take time to stand back at your nutrition and exercise habits then be ready with a big paycheck for those hospitals bills and some loans because you will not earn when you are hospitalised.Taking care of our nutriton and fitness is one of the best decisions we can take in our life. Juicing - A Beginners Guide You can spot a juicer a mile off at the supermarket or greengrocer. Apart from the huge number of carrots and apples they are loading into their trolley, they also have that slightly smug, see-how-healthy-I-am look about them. Cholesterol Does Not Cause Heart Disease Cholesterol is an essential building block of every cell in the body, required for all metabolic processes. It is particularly important in the production of nerve tissue, bile and certain hormones. Carrots : The Master Key For Healthy Living! It slows ageing, promotes healthy vision, has anti-cancer properties, increases immunity towards various chronic diseases. Yes, carrot does it all for you. The Truth About Omega 3 Since Dr Basant Puri, a consultant psychiatrist and senior lecturer at London's Imperial College MRI unit, released his findings on Omega 3 and its effect on brain function and depression, many studies have been performed regarding the beneficial effects this fatty acid. Studies over the past two years have consistently confirmed that Omega 3, a substance lacking in today's "diet" is a key component in the brain's development and proper functioning. From Cell to Super Cell - with Glutathione Imagine you're a cell.Inside your body runs the machinery that creates life itself. Do You Eat Breakfast? It is not a myth. Eating breakfast is an important part of attaining and maintaining a healthy lifestyle. Create Your Own Diet...Quickly & Easily: If you are like most people, you've tried dieting before. This newsletter is NOT about dieting, but instead about making long-term changes in the foods you choose and eat, WITHOUT sacrificing good taste. Blueberries and Their Role in Cholesterol Control Our bodies need cholesterol. We use cholesterol to produce vitamin D, hormones, and certain acids that help us digest fat. Calcium Absorption and Information Ionized minerals, colloidal minerals, chelated minerals . . |
home | site map |
© 2005 |