Food Sources That Boost Glutathione Naturally
Copyright © 2004 Priya Shah
Glutathione, the body's master antioxidant and detoxifier, is one of the 14 "Superfoods" listed in SuperFoods Rx : Fourteen Foods That Will Change Your Life, co-authored by Dr Steven Pratt.
Glutathione levels cannot be increased to a clinically beneficial extent by orally ingesting a single dose of glutathione. (1) This is because glutathione is manufactured inside the cell, from its precursor amino acids, glycine, glutamate and cystine.
Hence food sources or supplements that increase glutathione must either provide the precursors of glutathione, or enhance its production by some other means.
The manufacture of glutathione in cells is limited by the levels of its sulphur-containing precursor amino acid, cysteine.
Cysteine - as a free amino acid - is potentially toxic and is spontaneously catabolized or destroyed in the gastrointestinal tract and blood plasma. However, when it is present as a cysteine-cysteine dipeptide, called cystine, it is more stable than cysteine.
Consuming foods rich in sulphur-containing amino acids can help boost glutathione levels. Here are some food sources and dietary supplements that help boost glutathione levels naturally.
It is derived from the amino acid L-Cysteine, and acts as a precursor of glutathione. NAC is quickly metabolized into glutathione once it enters the body. It has been proven in numerous scientific studies and clinical trials, to boost intracellular production of glutathione, and is approved by the FDA for treatment of accetaminophen overdose. Because of glutathione's mucolytic action, NAC (brand name Mucomyst) is commonly used in the treatment of lung diseases like cystic fibrosis, bronchitis and asthma.
Milk thistle is a powerful antioxidant and supports the liver by preventing the depletion of glutathione. Silymarin is the active compound of milk thistle. It is a natural liver detoxifier and protects the liver from many industrial toxins such as carbon tetrachloride, and more common agents like alcohol.
Made naturally in body cells as a by-product of energy release, ALA increases the levels of intra-cellular glutathione, and is a natural antioxidant with free radical scavenging abilities. It has the ability to regenerate oxidized antioxidants like Vitamin C and E and helps to make them more potent. ALA is also known for its ability to enhance glucose uptake and may help prevent the cellular damage accompanying the complications of diabetes. It also has a protective effect in the brain.
Asparagus is a leading source of glutathione. Foods like broccoli (2), avocado and spinach are also known to boost glutathione levels. Raw eggs, garlic and fresh unprocessed meats contain high levels of sulphur-containing amino acids and help to maintain optimal glutathione levels.
Whey protein contains proteins like alpha-lactalbumin which is is rich in sulphur-containing amino acids. Heating or pasteurization destroys the delicate disulphide bonds that give these proteins their bioactivity. Undenatured whey protein is a non-heated product that preserves bioactive amino acids like cystine. It has been shown in numerous scientific studies and clinical trials to optimize glutathione levels.
Treatment of brain cells called astrocytes, with the Indian curry spice, curcumin (turmeric) has been found to increase expression of the glutathione S-transferase and protect neurons exposed to oxidant stress. (3)
Changkil saponins (CKS) isolated from the roots of the Chinese herbal medicine, Platycodon grandiflorum A. DC (Campanulaceae), commonly called Balloon Flower Root or Jie Geng, have been found to increase intracellular glutathione (GSH) content and significantly reduce oxidative injury to liver cells, minimise cell death and lipid peroxidation. (4)
Selenium is a co-factor for the enzyme glutathione peroxidase. Selenium supplements have become popular because some studies suggest they may play a role in decreasing the risk of certain cancers, and in how the immune system and the thyroid gland function. However, too much selenium can cause some toxic effects including gastrointestinal upset, brittle nails, hair loss and mild nerve damage.
1. The systemic availability of oral glutathione
2. Dietary approach to attenuate oxidative stress, hypertension, and inflammation in the cardiovascular system
3. Can Curry Protect Against Alzheimer's?
4. Protective effect of saponins derived from roots of Platycodon grandiflorum on tert-butyl hydroperoxide-induced oxidative hepatotoxicity
This article was first published in the July 2004 issue of The Glutathione Report, a newsletter featuring regular updates on the health benefits of glutathione. Get a Free report on Glutathione in Health and Disease
Water And Good Hydration
The key to good hydration is drinking a lot of water before, during and after any workout or activity. Water is essential for proper bodily function.
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.
Just How Dangerous Are Splenda and Artificial Sweeteners - Which Side is Spinning?
There seems to be fairly poor tracking by any formal standards once a product is approved as a food additive. Despite supposedly tracking adverse reactions, the reality has been different at the FDA.
Tips for Effective Muscle Building Diets
One of the biggest mistakes many new bodybuilders make is that they don't pay attention to their muscle building diets with the same detail, desire and determination with which they pay attention to their weight training program.You constantly see people throw out numbers such as your weight training program is 85% of your results or that muscle building diets are 95% of your results.
10 Flaxseed Facts to Improve Your Nutrition
Flaxseeds may be the smallest seeds you will find in any health food store, but there is nothing little about their enormous contribution to our overall health. Discovered in 5,000 BC, these little brown seeds were worshiped for their magical properties, such as healing the intestines, skin conditions, improving energy, and overall health.
WLS Patients Feeling Gassy & Bloated? Sugar Alcohol May Be To Blame
Sugar intake is a real concern for people who've had gastric bypass, in fact most patients fear sugar. The foremost fear isn't weight gain, it's dumping.
Learn About Diet Nutrition Physique
Diet nutrition physiqueToday, learning about diet nutrition physique isn't all that difficult any longer. The truth of the matter is what should you do about your overall health and well being? If you're concerned about you weight and physique then a little different twist on things are in order.
An Apple a Day, Does Keep the Doctor Away
Increasing the fiber in your diet has been shown to: reduce your cholesterol, reduce your hunger, lower your fat absorption, reduce surges in insulin levels, help with weight loss, lower the risk of colon cancer, and lower your risk of heart disease. WOW! Sounds like a miracle cure - where can I get this stuff? The answer: At your grocery store.
Fattening Foods: Not So Fattening After All?
Have you seen those "fat free" foods in supermarkets? Have you possibly delighted in them guiltlessly thinking that they are healthy for you? There's a good chance that you have because we usually follow what the media and the world around us says. In this day in age, along with other health fads, many people believe that fat makes you fat.
What You Should Know About
I don't understand people sometimes. You know, there is a huge problem with our health care.
The Portfolio Diet: The Solution to Heart Disease
What if there was a combination of foods that were as effective at lowering LDL cholesterol as prescription drugs? Would it be worth adding some new foods to what you eat each day to avoid medication?This is what the latest in a series of research studies Dr. Jenkins from the University of Toronto shows.
Guerilla Health Tactics: 5 Snappy Rules For a Healthier, Happier You
The subject of health care itself often seems plagued with conflicting advice, or even heated controversy. Witness the recent Cruise-Shields incident, which will doubtless occupy several chapters in future health and nutrition texts.
Buying Organic Produce: 6 Tips on How to Shop Wisely and Save Money
Some say they don't or can't buy organic foods due to higher cost and less availability. Here are a few ways to make organics more affordable and easier to purchase for your family.
Many people experience unpleasant reactions to foods they have eaten and suspect they have a "food allergy". However, only 2-5% of adults and 2-8% of children are truly "allergic" to certain foods.
What is Organic Farming?
Organic farming is the production of food using all natural methods - avoiding all synthetic chemicals and genetically modified organisms. Its' core philosophy is that of sustainability or 'zero impact'.
How Can Fat Be Essential?
How Can Fat Be Essential? By Garry Gamber Did you know that some fats are essential to the body? Yes, there are some fats that our body cannot produce which means that we must get them from our food. Perhaps you've heard of omega-3 fatty acids and omega-6 fatty acids.
Nutritional Support in Critically Ill Patients
The nutritional support in critically ill patients can be explained in 2 ways1.Enteral Nutrition2.
What is a Healthy Eating Plan?
Healthy eating is important for everyone, from babies to the elderly. Learning to eat well is more than just eating a variety of foods so that your body gets the proper nutrients.
The Joys of Being Healthy
It is amazing to be able to say I am a whole, happy, healthy, loving woman. I was sick for the first 40 years of my life.
The Niacin Rush
Your face turns flush and your skin starts to itch. Your heart begins to beat faster.
|home | site map|