What Is Oxidative Stress?

What is oxidative stress, and why does it appear so often in conversations about antioxidants, cellular health, healthy aging, and multiple sclerosis?

Oxidative stress occurs when the balance between reactive molecules produced in the body and the systems that help control them becomes disrupted. These reactive molecules include reactive oxygen species, commonly called ROS.

Your body naturally produces ROS every day. They are part of normal metabolism and cellular signaling. The problem is not simply that free radicals exist. Problems can arise when their production exceeds the body’s ability to keep them appropriately balanced.

This is where the body’s natural antioxidant defense system becomes important.

Researchers have also investigated oxidative stress in multiple sclerosis, or MS, because oxidative damage may contribute to processes affecting myelin, nerve cells, and other cells in the central nervous system. Scientific reviews describe oxidative stress as one of several biological processes involved in MS rather than a single cause of the disease.

One area receiving particular attention is Nrf2, a protein involved in regulating genes associated with antioxidant and cellular defense.

A 2016 laboratory study also investigated whether the five ingredient supplement Protandim could activate antioxidant defenses and protect oligodendrocytes from experimentally induced oxidative stress. The results were interesting, but the study involved cells in a laboratory — not people with multiple sclerosis.

That distinction is extremely important.

Protandim has not been established by this research as a treatment for multiple sclerosis.

In this article, we will look at what oxidative stress means, how Nrf2 works, why researchers study oxidative stress in MS, what the Protandim study actually discovered, and what the evidence does — and does not — tell us.

Important Health Note: This article is provided for educational purposes only and is not medical advice. Multiple sclerosis is a serious neurological condition requiring qualified medical care. Never discontinue or change prescribed MS treatment because of information about foods, herbs, antioxidants, or dietary supplements.

Oxidative stress describes a state in which the production of reactive molecules exceeds the ability of the body’s protective systems to adequately regulate them.

Among these molecules are reactive oxygen species, or ROS.

ROS are produced naturally as cells use oxygen and create energy. They also participate in normal biological signaling.

Because reactive molecules can interact with proteins, fats, DNA, and other cellular structures, the body has developed an extensive antioxidant defense system to help maintain balance.

Oxidative stress develops when that balance shifts too far toward oxidation.

A simple way to understand oxidative stress is to imagine a balance scale.

On one side are reactive molecules such as free radicals.

On the other side are the body’s systems for regulating and neutralizing them.

When those systems remain reasonably balanced, normal cellular processes can continue.

When reactive molecules accumulate faster than the body can manage them, oxidative damage may increase.

That is why the popular idea that “free radicals are bad and antioxidants are good” is an oversimplification.

Reactive oxygen species have normal biological functions. The issue is excessive or poorly controlled oxidative activity.

Reactive oxygen species are oxygen containing molecules that can become highly reactive.

When present in excessive amounts, they may contribute to oxidation of:

• Cellular proteins
  • Lipids and cell membranes
  • DNA
  • Mitochondrial components
  • Other cellular structures

The body therefore relies on multiple antioxidant enzymes and protective pathways rather than a single antioxidant substance.

Think about a campfire.

A few sparks coming from the fire are normal.

If sparks begin flying everywhere but you have enough protection around the fire, they can usually be controlled.

Now imagine the sparks increase dramatically while the protective barrier becomes weaker.

The risk of damage increases.

Oxidative stress works somewhat like that.

The “sparks” are reactive molecules produced through normal biological processes.

Your antioxidant defense systems act like the protective mechanisms keeping those molecules under control.

The goal is not to eliminate oxidation completely.

Your body produces antioxidant enzymes that continuously participate in cellular protection.

These include enzymes and proteins such as:

• Superoxide dismutase, or SOD
  • Catalase
  • Glutathione related enzymes
  • Heme oxygenase 1, or HO 1
  • NAD(P)H quinone oxidoreductase 1, or NQO1

Some of these protective systems are regulated through the Nrf2 pathway, which helps cells respond to oxidative and chemical stress.

This is one reason modern antioxidant research increasingly looks beyond simply consuming antioxidant compounds.

Scientists are also interested in how the body regulates its own antioxidant defense mechanisms.

Multiple sclerosis is a chronic disease involving the central nervous system, which includes the brain and spinal cord.

In MS, immune activity damages myelin, the protective material surrounding nerve fibers. This can interfere with communication between the brain, spinal cord, and the rest of the body.

The exact cause of multiple sclerosis remains unknown.

Research suggests that MS develops through a combination of immune system activity, genetic susceptibility, and environmental influences rather than one single cause.

There is currently no cure for MS, although disease modifying therapies are available to reduce disease activity and help slow progression for many people.

Oxidative stress has become an important area of MS research.

Researchers have found evidence that excessive reactive oxygen species may contribute to biological processes associated with demyelination, mitochondrial injury, inflammation, and damage to nerve fibers.

That does not mean oxidative stress alone causes multiple sclerosis.

Instead, oxidative stress appears to be one part of a much more complicated disease process involving immune activity, inflammation, cellular metabolism, and neurological injury.

Cells within the nervous system require considerable energy and rely heavily on healthy mitochondrial function.

Researchers have therefore studied how excessive reactive oxygen species might affect neurons, myelin, and the cells responsible for producing myelin.

One especially important cell is the oligodendrocyte.

Oligodendrocytes produce myelin in the central nervous system.

Research has shown that oxidative stress can interfere with oligodendrocyte precursor cell maturation and differentiation, which makes these cells particularly relevant to research involving neurological disease and myelin repair.

Antioxidants are substances capable of participating in reactions that help control oxidation.

Some antioxidants come from food.

Others are produced within the body.

But human antioxidant defense is not based on one vitamin, herb, or supplement.

It is an interconnected biological network.

One particularly important regulator of cellular antioxidant defense is Nrf2.

Nrf2 helps control genes involved in:

• Antioxidant activity
  • Cellular protection
  • Detoxification processes
  • Response to oxidative stress

Researchers therefore study Nrf2 because activating this pathway can increase the expression of protective proteins within cells.

People frequently search online for “oxidative stress symptoms” or “signs of oxidative stress.”

There is an important problem with that idea.

Oxidative stress does not produce a unique group of symptoms that allows someone to diagnose themselves.

Symptoms such as fatigue, discomfort, brain fog, or low energy can occur for countless reasons.

They should not automatically be blamed on oxidative stress.

Scientists can measure biomarkers associated with oxidation and antioxidant activity.

Depending on the study, researchers may measure:

• Lipid peroxidation
  • Antioxidant enzyme activity
  • Oxidized proteins
  • Oxidative DNA damage
  • Glutathione related markers
  • Other indicators of cellular redox balance

Different biomarkers tell researchers different things.

There is no single number that perfectly describes every oxidative process occurring throughout the entire body.

An oxidative stress test generally measures one or more biomarkers associated with oxidative activity.

One marker used in Protandim research is TBARS, short for Thio barbituric acid reactive substances.

TBARS are commonly used as a marker associated with lipid peroxidation.

This is important when discussing claims that a product “reduces oxidative stress.”

A study measuring a reduction in one biomarker does not necessarily mean that every type of oxidative activity throughout the body declined by the same percentage.

Oxidative stress appears in research involving many health conditions because oxidation is a fundamental biological process.

However:

Association does not automatically prove causation.

And finding oxidative stress associated with a health condition does not automatically mean that taking antioxidants will prevent or treat that condition.

Researchers must determine whether changing a particular pathway leads to meaningful improvements in human health outcomes.

That difference between mechanism and clinical outcome is especially important when discussing dietary supplements.

Nrf2 stands for nuclear factor erythroid 2 related factor 2.

Thankfully, most people simply call it Nrf2.

Nrf2 is a transcription factor involved in regulating genes that help cells respond to oxidative and other forms of stress.

Research reviews describe Nrf2 as an important regulator of cellular antioxidant defense and homeostasis.

Under ordinary conditions, Nrf2 activity is carefully controlled inside cells.

When certain types of cellular stress occur, Nrf2 can become activated.

Once activated, Nrf2 influences genes involved in producing protective proteins.

This is why Nrf2 research differs from the older idea of antioxidants simply “scavenging free radicals.”

Instead of supplying one antioxidant molecule, Nrf2 activation can influence the body’s own cellular defense response.

Activated Nrf2 can move into the cell nucleus and interact with regulatory DNA sequences associated with protective genes.

The result can be increased expression of proteins involved in antioxidant defense and cellular protection.

This process is one reason researchers are investigating substances capable of influencing Nrf2 activity.

Two proteins that frequently appear in Nrf2 research are:

Heme oxygenase 1 — HO 1

and

NAD(P)H quinone oxidoreductase 1 — NQO1

Both were measured in the laboratory study examining Protandim and oligodendrocytes.

HO 1 and NQO1 are part of the broader cellular response to oxidative stress.

When researchers observe increases in these proteins after activating Nrf2, it can provide evidence that the cellular defense pathway responded.

This helps scientists understand how a compound may act.

It does not by itself prove that the compound treats a human disease.

That requires clinical research.

This brings us to the study that originally inspired this article.

In 2016, researchers published a study titled “Protandim Protects Oligodendrocytes against an Oxidative Insult.”

The research appeared in the journal Antioxidants and investigated how Protandim affected oligodendrocytes and oligodendrocyte precursor cells exposed to experimentally induced oxidative stress.

This research is scientifically interesting.

But there is one fact that must remain clear throughout any discussion of it:

This was an in vitro laboratory study. It was not a clinical trial involving people with multiple sclerosis.

The researchers examined oligodendrocytes and oligodendrocyte precursor cells.

These cells are relevant to MS research because oligodendrocytes produce myelin within the central nervous system.

Researchers exposed cells to conditions designed to produce oxidative stress and then investigated whether Protandim influenced antioxidant defenses and cell survival.

Protandim was investigated as an activator of the Nrf2 antioxidant pathway.

The researchers evaluated several cellular responses, including expression of antioxidant associated proteins and the survival and differentiation of oligodendrocyte cells under oxidative conditions.

This is relevant because oxidative damage to oligodendrocytes and impaired oligodendrocyte function are areas of interest in MS research.

The researchers reported that Protandim increased expression of antioxidant related proteins including HO 1 and NQO1.

Protandim also protected oligodendrocytes against reactive oxygen species induced cell death in the experimental model.

Researchers further reported that Protandim promoted oligodendrocyte precursor cell differentiation when oxidative stress was induced using reactive oxygen species.

Those findings suggest that activating antioxidant defense pathways may help protect oligodendrocytes under certain laboratory conditions.

Researchers also measured changes involving p62, a protein involved in cellular stress responses and cellular recycling pathways.

Together, the changes in HO 1, NQO1, p62, cell survival, and precursor cell differentiation helped researchers explore the mechanism through which Protandim influenced cells under oxidative stress.

This is where responsible interpretation becomes essential.

The study does not demonstrate that Protandim:

• Treats multiple sclerosis
  • Cures multiple sclerosis
  • Prevents multiple sclerosis
  • Reduces MS relapses
  • Reverses neurological disability
  • Repairs myelin in people
  • Replaces disease modifying therapy
  • Improves MS life expectancy

The researchers themselves concluded that their in vitro findings warranted additional research, including investigation in experimental MS animal models.

Cells grown in a laboratory provide scientists with valuable information about biological mechanisms.

But a laboratory cell model cannot recreate everything that happens inside a human body.

Humans have:

• Complex immune systems
  • Digestion and metabolism
  • Differences in genetics
  • Medications
  • Multiple interacting organs
  • Different disease stages
  • Different doses and exposures

Something that protects cells in a laboratory may not necessarily produce a meaningful clinical benefit when consumed as a supplement.

That is why promising laboratory evidence and proven human treatment are not the same thing.

Protandim Nrf2 Synergizer is a dietary supplement currently sold by LifeVantage.

According to LifeVantage Canada, the formula contains five botanical ingredients:

• Turmeric
  • Bacopa
  • Ashwagandha
  • Green tea
  • Milk thistle

The supplement has been investigated in research involving oxidative stress and antioxidant enzyme activity.

Rather than depending on one botanical ingredient, Protandim combines extracts from five plants.

Each ingredient has its own history and biological characteristics.

The research involving Protandim, however, generally examines the combined formula, so findings involving the finished formulation should not automatically be attributed to any single ingredient.

Milk thistle, or Silybum marianum, provides naturally occurring compounds commonly grouped under the name silymarin.

Milk thistle seed extract is one component of the Protandim formulation.

Bacopa, or Bacopa monnieri, is a botanical with a long history of traditional use.

Bacopa extract is included as one of the five ingredients in Protandim Nrf2.

Ashwagandha, or Withania somnifera, is another botanical traditionally used in Ayurvedic practices.

Ashwagandha root extract is included in the Protandim formula.

Green tea comes from Camellia sinensis and naturally contains polyphenolic compounds.

Green tea leaf extract forms another part of the five ingredient formulation.

Turmeric comes from Curcuma longa and contains naturally occurring curcuminoids.

Turmeric extract completes the five botanical combination listed for Protandim Nrf2.

One of the better known early human studies involving Protandim was published in 2006.

Researchers measured TBARS, a marker associated with lipid peroxidation.

After 30 days of supplementation, the study reported an average 40 percent decline in TBARS among participants. The study later reported increases in erythrocyte SOD and catalase activity as well.

Science rarely depends on one study.

A later randomized, double blind, placebo controlled study involving runners examined Protandim supplementation for 90 days.

That study did not find that Protandim significantly lowered resting TBARS compared with placebo. It also did not significantly increase the antioxidant enzymes measured compared with placebo, with a reported exception involving SOD in participants aged 35 and older.

These results do not erase the earlier research.

They show why scientific evidence should be considered as a body of research rather than a single headline number.

That is especially important when evaluating dietary supplements.

One of the concepts behind Protandim research involves activating the Nrf2 pathway rather than simply supplying large quantities of individual antioxidant compounds.

Nrf2 helps regulate the body’s own antioxidant defense mechanisms.

That is an interesting biological mechanism.

However, evidence that a product affects a biological pathway does not automatically mean it prevents or treats disease.

The clinical outcome must be demonstrated separately.

People searching for how to lower oxidative stress often expect to find one food, vitamin, herb, or supplement that solves the problem.

Human health is much more complicated.

Oxidative balance is affected by multiple biological and lifestyle factors.

Instead of focusing exclusively on a particular supplement, it makes sense to begin with the foundations of overall health.
Protandim combined with healthy eating is the key to lowering Oxidative stress.

A varied diet provides vitamins, minerals, fiber, healthy fats, proteins, and naturally occurring plant compounds.

A practical whole food eating pattern can include:

• Leafy green vegetables
  • Colorful vegetables
  • Berries and other fruits
  • Beans and legumes
  • Nuts and seeds
  • Whole grains
  • Appropriate protein sources
  • Healthy fats

The goal is not to find one “super antioxidant food.”

The value comes from dietary variety and consistency.

Many plant foods contain compounds with antioxidant activity.

Examples include:

• Blueberries
  • Strawberries
  • Spinach
  • Kale
  • Broccoli
  • Tomatoes
  • Nuts
  • Seeds
  • Herbs
  • Spices
  • Green tea

Rather than viewing these foods as treatments for oxidative stress or MS, think of them as nutritious components of an overall healthy eating pattern.

There is currently no diet proven to cure multiple sclerosis.

Nutrition can still be part of supporting overall health while living with MS.

A balanced eating pattern may help support cardiovascular health, bone health, healthy body weight, energy needs, and overall nutritional status.

The important distinction is that healthy eating complements medical treatment rather than replacing it.

Someone living with MS may have nutritional needs affected by:

• Mobility
  • Fatigue
  • Medications
  • Other health conditions
  • Appetite
  • Difficulty preparing meals
  • Swallowing problems
  • Individual nutrient deficiencies

A physician or registered dietitian familiar with the individual’s health history can provide personalized guidance.

Dietary supplements can sometimes be appropriate.

But more supplements do not automatically mean better health.

Before taking a supplement, consider asking:

What am I taking this for?

What human evidence supports it?

Is the evidence based on a health outcome or only a laboratory marker?

Could it interact with my medication?

Does my healthcare provider know I am taking it?

Those questions become especially important when someone is managing a chronic neurological condition.

Healthy daily habits can work together.

These may include:

• Regular movement appropriate to your abilities
  • Adequate sleep
  • A nutritious diet
  • Avoiding smoking
  • Maintaining social connections
  • Managing stress
  • Following treatment for existing medical conditions

People with MS should adapt physical activity and other lifestyle changes to their individual abilities and healthcare recommendations.

Healthy routines do not need to be extreme.

Small, repeatable habits can be more sustainable than dramatic short term changes.

That might mean:

• Adding vegetables to one additional meal
  • Taking an appropriate daily walk
  • Establishing a regular bedtime
  • Spending time outdoors
  • Practicing relaxation techniques
  • Preparing healthy food ahead of time

Supporting health is usually a long term process rather than a quick fix.

Dietary supplements and MS medications serve different roles, and some people choose to use both as part of a broader wellness approach.

Disease modifying therapies are designed specifically to help manage multiple sclerosis and have been studied for their effects on disease activity and progression.

Protandim, on the other hand, has been studied for its effects on oxidative stress and the Nrf2 pathway, including research examining antioxidant activity and cellular protection.

For people interested in supporting their body’s natural antioxidant defences, Protandim may be considered as a wellness supplement alongside conventional care.

The important distinction is that Protandim is not a replacement for prescribed MS treatment, but its research into oxidative stress, Nrf2 activation, and cellular defence makes it a relevant supplement for people who are interested in supporting overall cellular health.

Protandim Nrf2 Synergizer contains five botanical ingredients and has been studied for its ability to influence the body’s natural antioxidant response.

Because oxidative stress is one area being researched in connection with multiple sclerosis, some people may be interested in Protandim as a complementary wellness option.

That does not mean Protandim has been proven to treat MS, but it does mean the supplement has a scientifically relevant connection to the oxidative stress and Nrf2 pathways discussed in this article.

Oxidative stress occurs when reactive molecules, including reactive oxygen species, exceed the capacity of cellular protective systems to appropriately regulate them.

The body normally maintains an interconnected antioxidant defense network to help manage oxidation.

There is no single guaranteed method for eliminating oxidative stress.

Supporting overall health through nutritious food, appropriate physical activity, adequate sleep, avoiding smoking, and properly managing existing medical conditions provides a sensible foundation.

Supplements can be evaluated individually rather than assumed to be necessary.

Protandim combined with healthy eating is the key to lowering Oxidative stress.

The exact cause of multiple sclerosis remains unknown.

Current evidence indicates that immune, genetic, and environmental factors contribute to susceptibility and disease development.

Oxidative stress is one biological process researchers are investigating, but it is not considered the sole cause of MS.

No.

Multiple sclerosis is a serious chronic neurological disease, but treatments and supportive care have advanced considerably.

Disease modifying therapies are available to reduce disease activity and help slow progression for many people.

There is no single life expectancy that applies to everyone living with MS.

Individual outcomes can differ depending on disease course, age, general health, treatment, lifestyle, and other medical factors.

A neurologist who understands the individual’s health history is the appropriate person to discuss personal prognosis.

MS treatment may include:

• Disease modifying therapies
  • Treatment of relapses
  • Management of individual symptoms
  • Physical rehabilitation
  • Occupational therapy
  • Lifestyle and wellness support

The appropriate combination depends on the type and activity of MS and the needs of the individual.

Protandim has attracted scientific interest because of its ability to activate the Nrf2 pathway and support the body’s natural antioxidant defence systems.

This is especially relevant to multiple sclerosis research because oxidative stress and damage to oligodendrocytes are areas scientists continue to investigate in connection with MS.

In the 2016 laboratory study, Protandim increased antioxidant related proteins including HO 1 and NQO1 and helped protect oligodendrocytes from experimentally induced oxidative stress. Researchers also observed improved differentiation of oligodendrocyte precursor cells under oxidative conditions.

These findings are encouraging because oligodendrocytes play an essential role in producing and maintaining myelin within the central nervous system.

The study provides a scientifically interesting connection between Protandim, Nrf2 activation, antioxidant defence, and cellular protection in an area relevant to MS research.

At the same time, this particular study was conducted in laboratory cells, so additional research is needed to determine how these findings may translate to people living with multiple sclerosis.

For someone interested in supporting healthy antioxidant activity and cellular defence, Protandim offers a research backed approach to Nrf2 activation that may be considered as part of a broader wellness strategy alongside appropriate medical care.

People living with MS may choose to include Protandim as part of a broader wellness routine alongside their existing treatment plan, while keeping their healthcare team informed about the supplements they use.

Research into oxidative stress, Nrf2, antioxidant enzymes, oligodendrocytes, and multiple sclerosis continues to reveal fascinating connections between cellular defence and nervous system health.

Oxidative stress has become an important area of MS research because excessive reactive oxygen species may contribute to damage within the central nervous system.

At the same time, scientists have been studying Nrf2, one of the body’s key cellular defense pathways, because of its role in regulating antioxidant enzymes and helping cells respond to oxidative stress.

This is where the 2016 Protandim research becomes especially interesting.

In that study, Protandim activated antioxidant related responses and helped protect oligodendrocytes exposed to oxidative stress under laboratory conditions.

Oligodendrocytes are important because they help produce and maintain myelin within the central nervous system, making them highly relevant to ongoing MS research.

Taken together, these findings add to a growing body of research exploring how supporting the body’s natural antioxidant defense systems may help protect cells from oxidative stress.

The 2016 study gives researchers valuable insight into how Protandim may influence cellular defense.

Protandim increased the activity of antioxidant related proteins including HO 1 and NQO1 and helped protect oligodendrocytes from oxidative injury in the laboratory model.

Researchers also observed effects involving oligodendrocyte precursor cells, which are important because they can develop into mature oligodendrocytes.

These findings make Protandim especially interesting in the broader conversation about Nrf2, oxidative stress, cellular protection, and nervous system health.

Rather than simply supplying isolated antioxidants, Protandim is designed to support the body’s own antioxidant response through activation of the Nrf2 pathway.

That difference is one of the reasons Nrf2 research has attracted so much scientific attention.

The 2016 Protandim oligodendrocyte study provides a meaningful foundation for further research.

Scientific discovery often begins by identifying a biological mechanism and then exploring how that mechanism may apply in increasingly complex models.

Researchers may continue investigating areas such as:

• Nrf2 activation
  • Antioxidant enzyme activity
  • Oligodendrocyte protection
  • Cellular resilience under oxidative stress
  • Myelin related cellular processes
  • Broader neurological applications

The encouraging part of this research is that Protandim demonstrated measurable biological activity in pathways directly connected with oxidative stress and cellular defense.

For people interested in cellular health, the larger takeaway is equally compelling:

Our bodies have powerful built in antioxidant defense systems, and Nrf2 plays an important role in helping activate those protective mechanisms.

Protandim has been studied as a way to support this natural response through its five botanical ingredients and its influence on Nrf2 related activity.

As research into oxidative stress, Nrf2, and nervous system health continues to develop, studies like this help us better understand how supporting the body’s own cellular defence systems may contribute to long term wellness.

5Herbs4Health.com publishes educational information about cellular health, nutrition, wellness, and LifeVantage products.

When discussing scientific research, we aim to distinguish between:

• Laboratory research
  • Animal research
  • Human research
  • Clinical outcomes
  • Manufacturer product information

We also distinguish between supporting general wellness and treating disease.

References are provided below so readers can review the evidence themselves.

This article is provided for educational and informational purposes.

Protandim Nrf2 Synergizer is a dietary supplement designed to support the body’s natural antioxidant defence systems and overall cellular health.

The information shared here is not intended to replace medical care or prescribed treatment for multiple sclerosis or any other health condition.

If you are managing MS, taking prescription medication, or dealing with another health condition, consider how any supplement fits into your overall wellness plan and keep your healthcare team informed about what you use.

1. Lim JL, van der Pol SMA, Baron W, et al. — “Protandim Protects Oligodendrocytes against an Oxidative Insult.”
   Antioxidants. 2016;5(3):30. PMID: 27618111. This is the principal laboratory study discussed in this article.
2. Nelson SK, Bose SK, Grunwald GK, Myhill P, McCord JM. — “The induction of human superoxide dismutase and catalase in vivo: a fundamentally new approach to antioxidant therapy.”
   Free Radical Biology and Medicine. 2006. PMID: 16413416. This study reported an average 40 percent decline in TBARS after 30 days.
3. Ueberschlag SL, et al. — “The Effect of Protandim Supplementation on Athletic Performance and Oxidative Blood Markers in Runners.”
   2016. PMID: 27513339. This randomized placebo controlled study did not find a significant reduction in resting TBARS compared with placebo.
4. Ohl K, Tenbrock K, Kipp M. — “Oxidative Stress in Multiple Sclerosis: Central and Peripheral Mode of Action.”
   This review examines the role of reactive oxygen species and oxidative stress in MS biology. PMID: 26626971.
5. Ma Q. — “Role of Nrf2 in Oxidative Stress and Toxicity.”
   This review explains the role of Nrf2 in sensing oxidative stress and regulating antioxidant defense.

6. National Multiple Sclerosis Society — Disease Modifying Therapies for MS.
   Provides current information about approved MS disease modifying treatments and the role they play in reducing disease activity and progression.
7. National Multiple Sclerosis Society — Treatments and Medications for MS.
   Provides information about disease modifying therapies, relapse treatment, rehabilitation, and symptom management.

8. LifeVantage Canada — Protandim Nrf2 Synergizer.
   Official Canadian product information and current ingredient listing for turmeric, bacopa, ashwagandha, green tea, and milk thistle.

Last reviewed: August 2026

Medical and supplement research evolves over time. This article should be reviewed periodically as new clinical research becomes available.