We are independent & ad-supported. We may earn a commission for purchases made through our links.

Advertiser Disclosure

Our website is an independent, advertising-supported platform. We provide our content free of charge to our readers, and to keep it that way, we rely on revenue generated through advertisements and affiliate partnerships. This means that when you click on certain links on our site and make a purchase, we may earn a commission. Learn more.

How We Make Money

We sustain our operations through affiliate commissions and advertising. If you click on an affiliate link and make a purchase, we may receive a commission from the merchant at no additional cost to you. We also display advertisements on our website, which help generate revenue to support our work and keep our content free for readers. Our editorial team operates independently from our advertising and affiliate partnerships to ensure that our content remains unbiased and focused on providing you with the best information and recommendations based on thorough research and honest evaluations. To remain transparent, we’ve provided a list of our current affiliate partners here.

What Are Glutathione Side Effects?

Nicole Madison
Updated Mar 03, 2024
Our promise to you
The Health Board is dedicated to creating trustworthy, high-quality content that always prioritizes transparency, integrity, and inclusivity above all else. Our ensure that our content creation and review process includes rigorous fact-checking, evidence-based, and continual updates to ensure accuracy and reliability.

Our Promise to you

Founded in 2002, our company has been a trusted resource for readers seeking informative and engaging content. Our dedication to quality remains unwavering—and will never change. We follow a strict editorial policy, ensuring that our content is authored by highly qualified professionals and edited by subject matter experts. This guarantees that everything we publish is objective, accurate, and trustworthy.

Over the years, we've refined our approach to cover a wide range of topics, providing readers with reliable and practical advice to enhance their knowledge and skills. That's why millions of readers turn to us each year. Join us in celebrating the joy of learning, guided by standards you can trust.

Editorial Standards

At The Health Board, we are committed to creating content that you can trust. Our editorial process is designed to ensure that every piece of content we publish is accurate, reliable, and informative.

Our team of experienced writers and editors follows a strict set of guidelines to ensure the highest quality content. We conduct thorough research, fact-check all information, and rely on credible sources to back up our claims. Our content is reviewed by subject matter experts to ensure accuracy and clarity.

We believe in transparency and maintain editorial independence from our advertisers. Our team does not receive direct compensation from advertisers, allowing us to create unbiased content that prioritizes your interests.

Produced by the body and found in food sources, glutathione is well known for helping to protect the body against a range of diseases and conditions. Since it can provide many health benefits, some people take supplements to boost its levels in the body. While glutathione is generally well tolerated, side effects are possible with any type of supplement. Among the possible side effects are shortness of breath, itchiness, and allergy symptoms. Though rare, chest pain and skin whitening are possible glutathione side effects as well.

Glutathione is a type of protein molecule that the body produces on its own. It is also naturally present in many of the foods people eat on a regular basis. For example, it is found in fruits and vegetables, and it is also present in significant quantities in meats that are freshly prepared. Many scientists assert that most people are likely to get enough dietary glutathione from food sources. Those who make poor nutritional choices, however, may consider taking a supplement.

In most cases, people who take glutathione don’t have to worry about adverse reactions to supplementation, but it is possible for a person to experience glutathione side effects in the form of an allergy. For example, some people may experience such symptoms as itching, rashes, or hives when taking it. Some people may notice swelling that can be attributed to an allergy as well. Additionally, such side effects as shortness of breath and chest pain may develop. If an individual experiences these glutathione side effects, he should discontinue use of the supplement and seek medical attention and advice.

Though it is rare, some people may experience glutathione side effects that affect the skin’s coloring or zinc absorption. When taken in very large doses, it is possible for glutathione to cause whitening of the skin. There have also been reports of a possible link between glutathione found in medications and zinc deficiency.

It’s worth noting that some nutritional experts assert that glutathione is not well absorbed when taken by mouth. As such, they state, supplementing with it may not increase its levels in the body or provide much real health benefit. To get around this, some people opt to supplement with precursors, which are substances that help the body to produce more glutathione. Taking glutathione through a vein is thought to be more effective, but this is not a probable choice for most people.

What Vegetables Naturally Boost Glutathione in the Body?

As previously mentioned, glutathione is an antioxidant composed of three separate, and common, amino acids: cysteine, glutamic acid, and glycine. 

The structure of this particular compound is built from the individual elements of carbon, hydrogen, nitrogen, oxygen, and sulfur that have arranged themselves into the complex molecular chain that forms glutathione as follows: C10H17N3O6S. 

There has been recent research conducted suggesting that when a person ingests glutathione orally, the gastrointestinal tract does not receive it well, and will instead reduce it to its base amino acids before the positives of taking supplements can settle in. 

By aiding regular supplement consumption by consuming vegetables rich in glutathione like asparagus, avocados, okra, and spinach, your chance of benefiting from increased levels in the body multiplies.

What Should You Avoid When Taking Glutathione?

For most individuals, the only viable method of taking glutathione is oral as intravenous consumption is not so readily achievable to the average person. However, when doing so, the effectiveness of glutathione is heavily reduced because the stomach is quick to dissolve the molecular bonds holding it together. 

To curb further inhibiting the drug, physicians recommend avoiding taking certain types of medication or consuming certain beverages.

Medications include: 

Beverages include: 

  • Alcohol

When pairing glutathione tablets with any of the above items, these combinations can result in the individual noticing a dramatic increase in their risk of experiencing the various side effects of glutathione usage. 

Glutathione Soap and Other Beauty Products

Glutathione is a popular compound that is regularly associated with beauty products because of its potential to whiten skin, dull acne scarring and dark spots, and give you a replenished and youthful appearance with regular application of it. 

This protein produces skin pigmentation due to its properties that inhibit melanin production. It cancels out tyrosinase, which is the enzyme responsible for melanin production.

However, if you are particularly sensitive, then it may be best to consult with a dermatologist before initiating a skin-lightening regimen on your own.

Popular brands that sell glutathione-laced soap include:

  • Brilliant Skin
  • Olay 
  • Beautederm
  • GlutaMax
  • Shauvy
  • Gluta White
  • Precious Skin
  • And more!

Soaps are far from the only items on the market containing glutathione, which they advertise as beauty-enhancing. 

In addition to soap, there are also facial creams and washes, gels, oils, serums, and the list goes on. 

Needless to say, glutathione is recognized internationally for its many uses within the realm of skincare and treatment, and as an antioxidant, its health benefits are admired by many consumers. It isn’t a wonder it has only grown in popularity recently. 

Can Glutathione Help With Weight Loss?

Glutathione is helpful beyond simply treating one’s skin; its function inside of the body plays critical roles in several areas, such as augmenting the immune system, fighting inflammation, repairing cell tissue, assisting the liver in ridding itself of dangerous toxins, and aids the digestive process to improve a person’s metabolism

Several things cause a person to produce less glutathione, from a poor diet to lack of exercise, which can lead to weight gain

Glutathione, as stated, boosts the metabolism, so when it is lacking in an individual, they may notice that they got heavier.

Alongside proper management of one’s workout regimen and daily caloric intake, introducing additional glutathione into your system will benefit those seeking to better their overall health. Glutathione has been shown to shift the body from fat production to muscle development, so its presence in the body is critical for managing your weight.

How Can Glutathione Deficiency Be Detected?

While we have covered the side effects of too much glutathione on the body since it naturally occurs, it should not come as a surprise that it is possible to be deficient in the chemical compound. 

Reasons for deficiency are varied and can be due to age, a pre-existing medical condition, poor dieting choices, or the constant consumption of certain medications like Vitamin K3 or DL-buthionine-S. 

Symptoms of a glutathione deficiency include:

  • Fatigue
  • Anemia
  • Weakened immune system

If you believe you may be experiencing a glutathione deficiency, the only known way to check for this is through routine blood work. To arrange for testing, contact your healthcare provider for a consultation.

The Health Board is dedicated to providing accurate and trustworthy information. We carefully select reputable sources and employ a rigorous fact-checking process to maintain the highest standards. To learn more about our commitment to accuracy, read our editorial process.
Nicole Madison
By Nicole Madison , Writer
Nicole Madison's love for learning inspires her work as a The Health Board writer, where she focuses on topics like homeschooling, parenting, health, science, and business. Her passion for knowledge is evident in the well-researched and informative articles she authors. As a mother of four, Nicole balances work with quality family time activities such as reading, camping, and beach trips.

Discussion Comments

By anon1005937 — On Dec 23, 2021

I'm presently taking 50mg/2X /day to fight off a second H.pylori infection. Paula

By anon945135 — On Apr 10, 2014

True! Some Asian women do take glutathione to achieve that whiter skin. Most Asians have brown complexion and wanted to have that fairer skin. While Americans and other nations that have whiter skin, are aiming for a darker skin. Only large doses can make your skin whiter in very short period of time like 500mg capsule or 700mg capsule taking it once to 3 times a day.

By SteamLouis — On Jul 16, 2013

@ddljohn-- Be careful with glutathione. I heard that nausea, stomach cramps and diarrhea are signs that there is too much glutathione in the body and that it's becoming toxic.

By stoneMason — On Jul 16, 2013

@ddljohn-- My son experienced the skin whitening side effect of glutathione, but only after three glutathione IV drips in one month. So it takes a very high dose of glutathione to experience this side effect. I don't think the tablet supplements can cause it, but then again I'm not a doctor.

I heard that in Asia, some people, especially women are taking glutathione injections for fairer skin. I think that's terrible.

By ddljohn — On Jul 15, 2013

I can't believe that glutathione can cause skin whitening. I had never heard of it before. Has anyone experienced this side effect? And what dose were you on?

The only side effect I've experienced from glutathione supplements is nausea. Thankfully, it only lasts a short while.

Nicole Madison

Nicole Madison


Nicole Madison's love for learning inspires her work as a The Health Board writer, where she focuses on topics like...
Learn more
On this page
The Health Board, in your inbox

Our latest articles, guides, and more, delivered daily.

The Health Board, in your inbox

Our latest articles, guides, and more, delivered daily.