Lower Respiratory Tract Infection
Lower respiratory tract infection occurs when there is an infection in the lower airways of the lungs caused by a virus or bacteria.
Quick Answer
What it is
Lower respiratory tract infection occurs when there is an infection in the lower airways of the lungs caused by a virus or bacteria.
Key findings
- Grade D: Immunity (Lactobacillus Casei)
- Grade D: Lower Respiratory Tract Infection Risk (Vitamin D)
- Grade D: All-Cause Mortality (Vitamin E)
Safety
No specific caution or interaction language was detected in the current summary/outcome notes.
ℹ️ Quick Facts
Quick Facts: Lower Respiratory Tract Infection
- Supplements Studied:5
- Research Trials:6
- Total Participants:5,860
- Top Supplement:Vitamin D (C)
Evidence-Based Protocol
Supplement stack ranked by research quality
Primary Stack (Tier 1)
Supporting Stack (Tier 2)
May reduce duration of respiratory infections; supports immune function
Mucolytic; helps thin mucus and supports lung health
How It Works
Lower respiratory tract infections (LRTIs) affect the airways below the voice box - the bronchi and lungs. They include bronchitis, bronchiolitis, and pneumonia.
TYPES:
SYMPTOMS:
CAUSES:
CRITICAL: See a doctor for:
MEDICAL TREATMENT:
* Vitamin C and D support immune function.
* NAC helps with mucus clearance.
* Bacterial pneumonia requires antibiotics.
Expected timeline: Acute bronchitis: 1-3 weeks. Pneumonia: 1-4 weeks depending on severity. Supplements support recovery.
Supplements for Lower Respiratory Tract Infection
Sorted by strength of evidence
Detailed Outcomes
Research Citations (100)
Related Conditions
Upper Respiratory Tract Infection
5 shared supplements · 49 outcomes
Upper respiratory tract infection refers to many different infections that can occur in the upper airways, with the common cold being just one type. These infections can cause inflammation and irritation in areas like the larynx, pharynx, nose, sinuses, and nostrils.
Type 2 Diabetes
4 shared supplements · 868 outcomes
Type 2 diabetes (T2D) is a disease in which blood glucose levels are too high. It is characterized by insulin resistance in muscle, fat, and pancreas cells and an inability of the pancreas to manufacture enough insulin to control blood glucose levels. T2D is strongly associated with excess body fat, and weight loss induced by lifestyle changes is extremely effective for treating T2D.
Type 1 Diabetes
4 shared supplements · 76 outcomes
Type 1 diabetes is an autoimmune disease in which the pancreas stops producing insulin. It can begin at any age, although most commonly in childhood or adolescence, and requires life-long treatment with insulin.
Metabolic Health
4 shared supplements · 975 outcomes
Research on metabolism, blood glucose regulation, insulin sensitivity, and metabolic syndrome.
Immune Health
4 shared supplements · 409 outcomes
Immune health refers to the body's ability to resist potentially harmful microorganisms such as viruses and bacteria, and includes both innate and acquired immunity.
High Cholesterol
4 shared supplements · 553 outcomes
High amounts of low-density lipoproteins cause fatty plaques to build up in the arteries, which restricts blood flow and can cause health problems like a heart attack. Lifestyle factors (e.g., poor diet, smoking) and genetics play a huge role in blood cholesterol levels.
4 shared supplements · outcomes
Cardiovascular Disease
4 shared supplements · 223 outcomes
Cardiovascular disease (CVD) is a broad term that refers to various diseases of the heart and blood vessels. Atherosclerotic CVD (ASCVD) is the most common subtype of CVD and causes strokes and heart attacks.