No doubt during the COVID pandemic you learned a great deal about the importance of supporting your immune system including the foods and supplements that can help you to do that.

And many of you were also exposed to a new word ~ GLUTATHIONE (pronounced “Glue-Ta-Thigh-Own”), and the important role it plays for the immune system.

I know. The first time I heard the word, I said “Gluta-What”?

That was more than 11 years ago, and I can assure you I am extremely grateful someone prompted me to learn more. At that time, I had worked in the clinical research and nutrition field for 13 years and had never heard the word glutathione or why it was important. However, because of my clinical research background, I knew where to look for the science. (

PubMed is the National Library of Medicine database. It contains more than 32 million citations and abstracts of biomedical literature. Today there are over 159,000 citations on glutathione. That is double the number there were 11 years ago when I first looked!

After 10 days of diligence, reading medical journal articles and citations, the picture was clear. If I wanted to live a longer, healthier life, free of disease, supporting my glutathione levels was crucial. In fact, my research showed there are over 74 known diseases with a link to glutathione depletion.

During the past year, we have become acutely aware of the importance of protecting our health. And as the science around COVID evolved, I have become even more grateful that I knew about glutathione. A recent study published in ACS Infectious Diseases is titled, “Endogenous Deficiency of Glutathione as the Mostly Likely Cause of Serious Manifestations and Death in COVID-19 Patients”.  That headline sure caught my attention!

Glutathione protects our cells from oxidative stress, reduces inflammation, and detoxifies the cells. Plus, glutathione reductase plays an important role in protecting hemoglobin (red blood cells), red cell enzymes, and biological cell membranes against oxidative damage.

So, let’s take a look at some basic information on glutathione and how you can protect yourself and your family’s health by maintaining your levels.

It may surprise you to learn that glutathione levels become depleted after you pass the age of 20, and deplete more rapidly in people with high oxidative loads driven by lifestyle, genetics, diet, lack of sleep and increased stress. Unfortunately, taking glutathione orally as a supplement is not effective. The glutathione molecule is fragile and breaks down in your digestive system before it can be absorbed.

Luckily, there are a few things we can do to support our levels.

But first, here is a quick checklist to help you know whether you may be depleted. By answering these questions, you will get a good idea if you should begin supporting your levels of glutathione.

Now that we know Glutathione is important, is it possible to consume foods to help us make more?

The answer is yes, but it only increases it in small amounts. Here are some foods to include in your diet to support your glutathione levels.

  • Glutathione can be supported through our diet by eating sulfur-rich foods like beef, fish and poultry, and cruciferous vegetables including broccoli, Brussels sprouts, cauliflower, kale, watercress and mustard greens. Vegetables such as garlic, shallots and onions also boost glutathione levels.
  • Research shows that Vitamin C helps to support glutathione levels by as a front-line antioxidant against oxidative stress and, as a result, spares glutathione to do more heavy-duty cellular work. Eating a variety of Vitamin C fruits and vegetables is important. Think of adding citrus fruits such as oranges and lemons, strawberries, papayas, kiwis and bell peppers as they are all examples of foods rich in vitamin C.
  • Selenium is an essential mineral and a cofactor for glutathione production. Excellent sources of selenium are found in Brazil nuts, beef, chicken, fish, organ meats, cottage cheese, and brown rice.
  • Milk thistle is another cofactor to support glutathione production. Milk thistle is comprised of three active compounds, collectively known as Silymarin. Silymarin is found in high concentrations in milk thistle extract and is well known for its antioxidant properties and its support to maintain glutathione.
  • Curcumin is a potent antioxidant that ­fights free radicals and has been known to reduce inflammation. Curcumin also induces Phase II enzymes that support the Glutathione detoxi­fication pathway.

Sleep and Moderate Exercise also help to support your body’s production of glutathione. Interestingly, my first observation when I began increasing my levels was, I achieved a deeper, more restorative sleep; something that has been reported to me repeatedly by clients during the past 11 years.

So, foods can help us support our glutathione levels, but what if we are already depleted, or genetically impaired and don’t make adequate amounts?

Here’s the key. Unlike antioxidants we get from food sources, glutathione, our Master Antioxidant, is produced within the cells of our body. To make adequate levels of glutathione, our cells require 3 amino acids – cysteine, glutamic acid and glycine. While typically we have adequate glutamic acid and glycine, cysteine is a fragile molecule, not readily available in our diet. The rate at which glutathione is produced by the body depends on the complete cysteine molecule being delivered undamaged into the cell. That means the fragile portion of the cysteine molecule (sulfhydryl group) must be protected to maximize glutathione production.

Some of you may have used, or heard about, NAC or N-Acetyl Cysteine supplements. NAC is a compound in which the sulfhydryl group is not protected, reducing the amount of cysteine absorbed into the cell and reducing the rate at which the body can produce glutathione. Over time, and at high doses, NAC also has the potential for liver toxicity and damage, so it must be used carefully.

RiboseCysteine is a cysteine-delivery technology developed over 30 years ago by Medicinal Chemist Dr. Herbert Nagasawa and his research team at the University of Minnesota. By bonding L-Cysteine and D-Ribose the compound delivers the unbroken cysteine molecule to the cell. No leakage of cysteine occurs, and the sulfhydryl group is protected making it more effective at helping cells make glutathione.

Unlike NAC, and even at high doses, no toxicity has been observed with RiboseCysteine.

In a 1987 clinical study conducted for the Veterans Administration, Dr. Nagasawa and his research team demonstrated that RiboseCysteine was 300% more effective than NAC at stimulating glutathione in liver cells. There are now 37 independent, published, peer-reviewed studies on Ribose Cysteine and its ability to support cellular glutathione. For additional science, Medical and Health Professionals may want to visit the website:

The RiboseCysteine compound became commercially available in 2009 as RiboCeine™.

Dr. Nagasawa also developed a powerhouse, comprehensive formula called Cellgevity. Cellgevity contains all of the glutathione-stimulating ingredients we discussed earlier and is the formula I recommend to my DNA clients who require glutathione support. In addition to RiboCeine, Cellgevity contains Broccoli Seed Extract, Alpha Lipoic Acid, Resveratrol, Green Tea Extract, Curcumin, Quercetin, Milk Thistle- Silymarin, Selenium, and Black Pepper Extract.

If you checked as many of the boxes on the quiz as I did, your may find that supporting your glutathione levels is the answer for improved health and longevity. If you suffer from inflammation, poor immune system or over exposure to toxins supporting your glutathione is extremely important.

RiboCeine™ has proven to be the most cost-effective, scientifically proven way to support the body’s glutathione levels.

For additional information about glutathione, RiboCeine and Cellgevity, please visit the Meridian website: There you will find the list of the 74 known diseases caused by glutathione depletion. You can learn more about Dr. Nagasawa and his research. In addition, you will find a link to order Cellgevity and MaxOne (RiboCeine only) at Wholesale and Preferred Customer discounted pricing.



2. Bobbi Horne is a Cardiovascular Consultant, Certified Health Coach, and DNA Practitioner in Houston, Texas.