Fibromyalgia and Nitric Oxide

Short answer: fibromyalgia is real pain from a nervous system turned up too high, sitting on top of muscles that are short of energy and blood flow. Research shows the blood vessel lining in fibromyalgia makes less healthy nitric oxide, so oxygen and fuel struggle to reach muscle. In 30 years of practice, the people who turn the corner do three things in order: lower the chemical load, open the body's exits, then rebuild energy and circulation. Nitric oxide and medicinal mushrooms sit at the centre of that rebuild.

Key takeaways

• Fibromyalgia is not "in your head". Studies show small-fibre nerve changes, immune involvement, broken deep sleep and muscles low in cellular energy.
• People with fibromyalgia show lower flow-mediated dilation, a marker of the nitric oxide the artery lining makes. The more pain, the worse it tends to be.
• Everyday chemicals, mould and medicines can drain glutathione and stall the mitochondria. Removing exposures is often the biggest single win.
• Reishi improved physical fitness in women with fibromyalgia in a randomised trial. Cordyceps and lion's mane support energy and the nervous system.
• Nitric oxide needs to be restored carefully, with antioxidant cover. That is how Ultimate 4 is built.

What is fibromyalgia?

Fibromyalgia is widespread pain and tenderness, usually with fatigue, unrefreshing sleep, brain fog and sensitivity to touch, cold, noise and light. It affects women far more often than men and commonly starts in midlife.

For decades people were told it was stress or imagination. The research has moved well past that. Five findings keep repeating:

1. The volume knob is stuck on high. The spinal cord and brain amplify incoming signals (central sensitisation), so pressure, cold and touch register as pain.
2. The small nerves are affected. Around half of people with fibromyalgia show small-fibre nerve changes on skin biopsy. These are the burning, tingling, pins-and-needles nerves.
3. The immune system is involved. When antibodies from people with fibromyalgia were transferred into mice, the mice developed pain sensitivity that faded as the antibodies cleared.
4. The muscle is short of energy. Lower CoQ10, more oxidative stress and reduced microcirculation have been found in muscle and tender points.
5. Deep sleep is broken. Slow-wave sleep is interrupted, so the night-time repair window that resets pain thresholds never fully opens.

Common causes and triggers

Fibromyalgia rarely has one cause. In clinic, the story usually has a load that built up for years and a final trigger that tipped the system over.

• Physical or emotional trauma: an accident, surgery, a loss or a long period of stress often comes just before onset.
• Infection: glandular fever (EBV), influenza and COVID-19 are common starting points.
• Chemical load: salon work, cleaning, farming, renovation, solvents, pesticides and heavy fragrance use. These drain glutathione, the body's main detox antioxidant.
• Mould: a water-damaged home or workplace keeps the immune system switched on.
• Medicines: statins lower CoQ10 production, regular paracetamol depletes glutathione, and some antibiotics (fluoroquinolones) affect mitochondria.
• Poor sleep and low thyroid conversion: both lower the pain threshold.
• Hormonal change: perimenopause often coincides with onset, and nitric oxide availability falls as oestrogen drops.

Ask yourself: what changed in the 12 months before the pain started? A new job, a new home, a leak, a renovation, a salon routine or a new medicine? The pattern often points straight to the source.

Fibromyalgia and nitric oxide: the missing link in circulation

Nitric oxide (NO) is the molecule the lining of your blood vessels (the endothelium) uses to relax and open the vessel, so oxygen and fuel reach the tissue. It also helps calm inflammation and keeps platelets from sticking.

In fibromyalgia, that system is under strain:

• In a study of 55 women with fibromyalgia and 35 healthy women, flow-mediated dilation (a standard measure of endothelial NO function) was significantly lower in fibromyalgia, 5.7% against 7.0%. Lower dilation tracked with higher pain scores and worse daily function.
• Laser Doppler studies show impaired microcirculation in the skin of women with fibromyalgia, and abnormal blood flow and temperature over the tender points themselves.
• Researchers have proposed a vicious cycle: less endothelial NO, poorer microcirculation in muscle, a modest drop in tissue oxygen, then fatigue and exercise intolerance, which lowers NO further.

Why fibromyalgia lowers healthy nitric oxide

• Oxidative stress: free radicals destroy NO almost as fast as it is made. Low glutathione and low antioxidant status make it worse.
• Chronic stress and pain: constant sympathetic "fight or flight" tone narrows vessels and suppresses endothelial function.
• Inactivity: movement is one of the strongest NO signals. Pain reduces movement, and reduced movement reduces NO.
• Age and hormones: by around 40, most adults make roughly half the nitric oxide they did at 20, and menopause speeds the decline.
• Antiseptic mouthwash and low vegetable intake: the nitrate pathway depends on mouth bacteria and leafy greens.

One important nuance

Some fibromyalgia research shows higher NO signalling in pain pathways, and under heavy oxidative stress NO can pair with free radicals to form peroxynitrite, which irritates nerves. So the goal is not "as much NO as possible". The goal is healthy vessel-lining NO restored with antioxidant cover. That is why the order of this protocol matters, and why Ultimate 4 pairs its NO sources with vitamin C, glycine, taurine and hibiscus.

Detoxification: lower the load, then open the exits

The more chemical load your body carries, the more glutathione it spends clearing it, the less is left to protect your mitochondria and your nitric oxide, and the less energy there is to run detoxification. Researchers call the sensitivity that follows toxicant-induced loss of tolerance: one big exposure breaks tolerance, then small everyday amounts of perfume, petrol or cleaning spray trigger symptoms.

Step 1: the hidden load audit

Start with the room you sleep in and the place you work. Change one exposure a week.

• Fragrance: plug-ins, scented candles, perfume, laundry softener and dryer sheets. Go fragrance-free.
• Salon chemicals: keratin or Brazilian smoothing (releases formaldehyde under the flat iron), permanent dark dyes and aerosol sprays.
• Cleaning products: swap to vinegar, bicarb and unscented castile soap.
• Mould: check behind showers, under sinks, air-con units and ceiling stains. Fix the moisture first.
• Plastics with heat: store and reheat in glass or steel. Filter your drinking water.
• Antiseptic mouthwash: retire it. It kills the bacteria that turn dietary nitrate into nitric oxide.

Step 2: open the exits gently

Pulling stored chemicals out faster than the bowel, liver and kidneys can clear them is the most common reason sensitive people feel worse on a "detox". Go in this order:

1. Bowel first: one to two soft motions a day. Magnesium citrate at night, ground flaxseed or psyllium, and two cups of vegetables per meal.
2. Fluid and minerals: around 30 ml of water per kg of body weight daily.
3. Liver through food: broccoli sprouts, garlic, onion, beetroot, bitter greens and lemon.
4. Glutathione: NAC, building slowly from 300 mg a day, and glycine 3 g at night, which also supports deep sleep.
5. Sweat and lymph: short, low-heat infrared sauna sessions, dry brushing towards the heart, legs up the wall for 10 minutes.

If you get headaches, flu-like aching, deeper fog or a flare lasting more than two days, drop back a step and keep the bowel moving.

Medicinal mushrooms for fibromyalgia

I've used medicinal mushrooms in practice for over 30 years. In fibromyalgia they work on the systems around the pain: energy, immune balance, sleep and the nervous system.

Reishi (Ganoderma lucidum)

Reishi has the most direct fibromyalgia research of any mushroom. In a randomised, double-blind trial of 64 women with fibromyalgia, 6 g of reishi a day for six weeks significantly improved aerobic endurance, lower-body flexibility and walking speed, while the comparison group did not improve. A second pilot trial found a trend towards better mood and life satisfaction. Traditionally reishi is the calming mushroom: used for restless sleep, stress and immune balance.

Cordyceps

Cordyceps has a long traditional use for fatigue and breathlessness. In a placebo-controlled trial, a cordyceps-containing mushroom blend at 4 g a day for three weeks improved maximal oxygen uptake and time to exhaustion. For fibromyalgia, think of it as support for oxygen use and cellular energy in tired muscle.

Lion's mane

Lion's mane supports nerve growth factor and has been studied for mood and anxiety. With small-fibre nerve involvement and brain fog so common in fibromyalgia, it is a natural fit.

Chaga, shiitake and turkey tail

These add antioxidant and immune-balancing polysaccharides (beta-glucans), useful where an infection or immune activation sits behind the pain.

BOOST combines seven medicinal mushrooms, including reishi, cordyceps, lion's mane and chaga, with greens such as spirulina, chlorella and broccoli sprout. In fibromyalgia I start it at half a serve from week six of the protocol, once the bowel is moving and the biggest exposures are gone. Skip it if mushrooms or algae don't suit you.

Rebuilding energy in the muscle

With the load coming down, the muscle needs its energy engine rebuilt. One nutrient at a time, every three to five days, so you know what helps.

• Magnesium malate: every ATP molecule works as magnesium-ATP, and malic acid feeds the energy cycle. Epsom salt baths two to three times a week if heat suits you.
• CoQ10 (ubiquinol) at 300 mg: the dose used in fibromyalgia studies that reported less pain and fatigue. Essential if you take a statin.
• D-ribose: the sugar backbone of ATP, studied in fibromyalgia and chronic fatigue.
• Omega-3, vitamin D3 and an activated B complex: membranes, muscle function and the cofactors that feed fuel into the mitochondria.
• PEA (palmitoylethanolamide): 600 mg twice daily for widespread, nerve-type pain.
• Deep sleep first: glycine and magnesium at night, a cool dark room and no alcohol.
• Warm-water movement: a hydrotherapy pool at 32 to 34°C is often the best-tolerated restart. In women with fibromyalgia, four weeks of moderate walking improved pain scores and microvascular function.

Ultimate 4: restoring nitric oxide, protected

Habits come first, but most people with fibromyalgia can't eat or move their way back to healthy nitric oxide on their own. That is why I formulated Ultimate 4, a daily nitric oxide powder that supports both of the body's NO pathways and protects the NO once it is made.

• The nitrate pathway: beetroot (1,200 mg) and rocket (1,200 mg). This pathway still works when the vessel enzyme is strained by oxidative stress.
• The enzyme pathway: L-citrulline (1,620 mg), the raw material the body converts to arginine and then NO. Gentler than arginine on its own.
• Protection: vitamin C (600 mg) and hibiscus help protect NO from free radicals; vitamin C also recycles glutathione.
• Detox and energy support: glycine (600 mg) feeds glutathione, taurine (360 mg) protects mitochondria and supports bile flow, and magnesium taurate supports muscle and nerve function.

In a sensitive system, start at a quarter to half a scoop and build to one scoop over one to two weeks. Test your nitric oxide with a saliva strip before you start, then retest after a few weeks so you can see your levels move.

Learn more about Ultimate 4 · Nitric Oxide Test Strips · BOOST

My 12-week approach at a glance

• Weeks 0 to 1, pace and baseline: daily pain, energy and sleep scores, morning heart rate variability, a saliva NO strip.
• Weeks 1 to 4, lower the load: one exposure a week, starting where you sleep and work. Retire mouthwash, fragrance and aerosols.
• Weeks 3 to 8, open the exits: bowel, fluid and minerals first, then NAC and glycine.
• Weeks 4 to 12, foundation and flow: magnesium, CoQ10, omega-3 and vitamin D one at a time. Ultimate 4 from a quarter scoop. Slow breathing and humming daily.
• Weeks 6 to 12, rebuild and retest: BOOST at half a serve, PEA if pain leads, warm-water movement. Retest your NO strip, HRV trend and scores at week 12.

Most people notice the first shift at six to eight weeks: better sleep, fewer flares, a clearer head. Mitochondrial repair takes three to six months. Keep your prescribed medication and change one thing at a time.

The full plan, including the hidden load audit, the dispensary herbs and a 12-week tracker, is in The Butterworth Protocols.

What the science does and doesn't show yet

The evidence that endothelial function and microcirculation are impaired in fibromyalgia is consistent across several studies, though most are small. The reishi trials are small too, and one showed only trends. There are not yet trials of nitrate or citrulline supplements specifically in fibromyalgia. What we do know is that healthy nitric oxide underpins circulation, oxygen delivery to muscle and inflammatory balance, and that the research on CoQ10, magnesium and gentle movement in fibromyalgia is encouraging. I'd rather be clear about where the evidence is strong and where it is still building.

Frequently asked questions

Is fibromyalgia linked to poor circulation?

Yes. Studies show reduced flow-mediated dilation and impaired microcirculation in fibromyalgia, both markers of reduced healthy nitric oxide from the vessel lining.

Can nitric oxide make fibromyalgia pain worse?

Very large bursts of NO alongside heavy oxidative stress can irritate nerves. That is why NO is restored gently, from a quarter scoop, with vitamin C and other antioxidants, after the load has come down.

Which medicinal mushroom is best for fibromyalgia?

Reishi has the most direct research in fibromyalgia, with a randomised trial showing better physical fitness. Cordyceps supports oxygen use and energy, and lion's mane supports the nervous system.

Why do I react to perfume and cleaning products?

A heavily loaded system loses tolerance. Small amounts of everyday chemicals then trigger symptoms. Reducing exposures and supporting glutathione usually lowers the sensitivity over time.

How do I know if my nitric oxide is low?

Saliva test strips give an at-home reading in about 15 seconds. Learn how to test and optimise your nitric oxide.

Living with fibromyalgia, or supporting someone who is? Join the conversation in our Butterworth Health Optimisation community.

Jeff Butterworth N.D. Specialist Naturopath, 30 years in clinical practice

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This article is for general education and is not a substitute for individual health advice. Supplements support healthy function; they do not treat, cure or prevent any disease. Always read the label and follow the directions for use. Keep taking your prescribed medication.