Home
>
Nutrition
>
Food Sources That Boost Glutathione Naturally

Food Sources That Boost Glutathione Naturally

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.

1. N-Acetyl-Cysteine (NAC)

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.

2. Milk Thistle, Silymarin

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.

3. Alpha Lipoic Acid

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.

4. Natural Foods That Boost Glutathione Levels

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.

5. Undenatured Whey Protein Isolate

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.

6. Curcumin (Turmeric)

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)

7. Balloon Flower Root

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)

8. Selenium

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.

Disclaimer: The information here is not provided by medical professionals and is not intended as a substitute for medical advice. Nutritional supplements, while usually benign, can produce adverse reactions in some people. As with prescribed drugs, long-term effects from supplements are often unknown. Pregnant women and children should not take supplements except after consultation with their healthcare provider. Never exceed the recommended dosage on the container. If you observe adverse effects stop taking the supplement immediately and contact your healthcare provider.

References:

1. The systemic availability of oral glutathione
Witschi A, Reddy S, Stofer B, Lauterburg BH. [Eur J Clin Pharmacol. 1992;43(6):667-9.]

2. Dietary approach to attenuate oxidative stress, hypertension, and inflammation in the cardiovascular system
Wu L, Ashraf MH, Facci M, Wang R, Paterson PG, Ferrie A, Juurlink BH. [Proc Natl Acad Sci U S A. 2004 May 4;101(18):7094-9. Epub 2004 Apr 21.]

3. Can Curry Protect Against Alzheimer's?
American Physiological Society (APS) Press release; 16-Apr-2004

4. Protective effect of saponins derived from roots of Platycodon grandiflorum on tert-butyl hydroperoxide-induced oxidative hepatotoxicity
Lee KJ, Choi CY, Chung YC, Kim YS, Ryu SY, Roh SH, Jeong HG. [Toxicol Lett. 2004 Mar 7;147(3):271-82.]

This article was first published in the July 2004 issue of priya shah, a newsletter featuring regular updates on the health benefits of glutathione. Get a Free report on priya shah

family-safe home cleaners Lincolnshire ..

In The News:

Chrome faces its sixth zero-day attack in 2025 as Google patches critical V8 engine flaw CVE-2025-10585 discovered by Threat Analysis Group.

The Hypershell X Ultra exoskeleton features 12 terrain modes and carbon fiber construction to enhance hiking, cycling and outdoor adventures.

Personal data from public records and data brokers helps scammers create tailored scam stories, making their calls and emails more believable to potential victims.

Uber Eats partners with drone delivery startup Flytrex to test autonomous food delivery services in U.S. markets, marking the company's first investment in drone technology.

OpenAI announces 120-day plan to strengthen ChatGPT safeguards for teens, including parental controls and expert council on AI wellbeing.

Spam emails can help improve security — if reported correctly. Learn how to report spam across major email services and get key tips to protect your inbox and personal data.

Harvard researcher Avi Loeb says comet 3I/ATLAS weighs 33 billion tons and spans 3.1 miles, making it far larger than previous interstellar visitors.

The Glassboro Public School District in New Jersey has partnered with ZeroEyes and InformaCast to detect visible firearms and alert staff and law enforcement within seconds.

Hackers use fake Google search results to trick users into downloading lookalike apps laced with malware that have been pushed to the top.

Generative A.I. has lowered barriers for sophisticated cyberattacks as hackers exploit ChatGPT and other tools to forge documents and identities.

IOS 26's new features include bigger lock screen clocks, dirty lens alerts, and improved spam detection for iPhones.

Stay up to date on the latest AI technology advancements and learn about the challenges and opportunities AI presents now and for the future.

Sophisticated phishing scams now exploit Apple's iCloud Calendar invite system to bypass spam filters and trick users into calling fake support numbers.

Complete guide to medication tracking apps for iPhone and Android users, featuring built-in Health apps, MediSafe, MyTherapy, and smart pill dispensers.

Alef Aeronautics plans to begin production of its electric flying car Model A by late 2025, following FAA approval for limited testing at five airport locations.

Five common overpayment scams use fake checks and third-party payment requests to steal money from unsuspecting victims across various scenarios.

The Robeta Ananya luxury camper van features a full living room, ceiling bed, washer-dryer, and complete kitchen starting at $295,000 for the limited Founders' Edition.

Scammers exploit retirees' trust and assets through fake debt collection calls, but proper verification methods and reporting can stop these fraudulent schemes.

Social media scams are rising as fraudsters create fake accounts and buy verification badges to deceive users, but these simple safety steps can protect you.

The new groundbreaking Paris Solar-Battery Park in Wisconsin provides renewable energy day and night by capturing excess energy from its solar panels.

Travelers face increased risks from fake Wi-Fi networks at airports and on flights as attackers exploit growing reliance on in-flight internet for entertainment and services.

Older Android phones, tablets and car systems will lose access to new Waze features as the app drops support for Android versions below 10.

Research shows iPhone owners' overconfidence in Apple security makes them easier targets for cybercriminals compared to Android users who take more precautions.

Five key tech terms reshaping online shopping from mobile payments and instant delivery to social media commerce and inventory-free retail models.

AI browsers from Microsoft, OpenAI and Perplexity can fall for scams faster than humans, completing fraudulent purchases and clicking malicious links without verification.