Protocol · Respiratory Health
Chronic Bronchitis Support Protocol
N-Acetyl Cysteine (NAC) and Vitamin D are the core of this stack, with 7 supporting supplements. Each row gives the amount the protocol lists and the grade our evidence database holds for that supplement in Chronic Bronchitis Support.
We are re-verifying the studies cited on protocol pages; only confirmed citations are shown.
The stack
9 supplements · none graded yet
| Grade | Supplement | Amount listed | Why it’s in the stack | Evidence on file | Shop |
|---|---|---|---|---|---|
| Primary stackThe core of this protocol | |||||
| N-Acetyl Cysteine (NAC) | Amount listed: 600–1,200 mg daily | Mucolytic that thins mucus; antioxidant; reduces exacerbation frequency and severity in COPD/chronic bronchitis | Not graded yet | ||
| Vitamin D | Amount listed: 2,000–4,000 IU daily (higher if deficient) | Supports immune function; deficiency very common in COPD; supplementation may reduce exacerbations especially if deficient | Not graded yet | ||
| Supporting stackListed as additions to the core | |||||
| Omega-3 Fatty Acids | Amount listed: 2–3 g EPA+DHA daily | Anti-inflammatory; may reduce airway inflammation and improve lung function | Not graded yet | ||
| Magnesium | Amount listed: 300–400 mg daily | Bronchodilator effects; low levels associated with worse lung function; supports muscle function including respiratory muscles | Not graded yet | ||
| Vitamin C | Amount listed: 500–1,000 mg daily | Antioxidant; may protect airways from oxidative damage; supports immune function | Not graded yet | ||
| Vitamin E | Amount listed: 200–400 IU daily | Antioxidant that protects lung tissue from oxidative stress | Not graded yet | ||
| Zinc | Amount listed: 15–30 mg daily | Supports immune function; may reduce duration of respiratory infections | Not graded yet | ||
| Quercetin | Amount listed: 500–1,000 mg daily | Flavonoid with anti-inflammatory and antioxidant properties; may support lung health | Not graded yet | ||
| Probiotics | Amount listed: 10–20 billion CFU daily | May support immune function and reduce respiratory infection frequency | Not graded yet | ||
Shop the evidence-backed picks
Support alongside medical care. These supplements are not a treatment for Chronic Bronchitis. If you are being treated for it, talk to your clinician before adding one: supplements can interact with medicines.
The collection holds the supplements we grade A or B for its theme, in third-party tested products where the catalog has them. It opens in our Fullscript store. You can look through it without signing in; Fullscript asks for a free account to order.
Or shop one supplement
Each opens third-party tested products, matched to the dose above where we can.
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How this protocol works
In plain language
Chronic bronchitis is characterized by inflammation and excess mucus production in the bronchial tubes, causing a persistent productive cough. It's defined as a cough with mucus production on most days for at least 3 months in 2 consecutive years. Chronic bronchitis is a form of COPD (Chronic Obstructive Pulmonary Disease) and is primarily caused by smoking.
CRITICAL: The most important intervention for chronic bronchitis is SMOKING CESSATION. This protocol is SUPPORTIVE and does not replace medical treatment or the need to quit smoking.
MEDICAL TREATMENT includes:
- Bronchodilators (inhalers)
- Inhaled corticosteroids
- Pulmonary rehabilitation
- Oxygen therapy (if needed)
- Antibiotics for acute exacerbations
- Vaccinations (flu, pneumonia, COVID-19)
WHEN TO SEEK IMMEDIATE CARE:
- Severe shortness of breath
- Confusion or drowsiness
- Blue lips or fingernails
- Rapid worsening of symptoms
- High fever
N-Acetyl Cysteine (NAC)* is the most studied supplement for chronic bronchitis. It thins mucus (mucolytic effect) and has antioxidant properties. Multiple studies show it reduces the frequency and severity of exacerbations.
Vitamin D* deficiency is very common in COPD patients (up to 70%). Supplementation, especially in those with low levels, can reduce exacerbation frequency.
Omega-3 Fatty Acids* have anti-inflammatory properties that may reduce airway inflammation.
Magnesium* has mild bronchodilator effects and supports respiratory muscle function.
Expected timeline: NAC may reduce exacerbations within 3-6 months of regular use. Vitamin D benefits develop over weeks to months. Lung damage from smoking is partially irreversible, but stopping smoking halts further decline.