Lung & Bronchial Support by Doctors' Preferred — Ingredients, Evidence & Safety

Product Label

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Label Data

2 Softgel(s) Serving Size

30 Servings

Other Combinations Product Type

25% Evidence Coverage

Supplement Facts — Evidence Check

Calories

15 Calorie(s)

Total Fat

1.5 Gram(s) (2% DV)

Cholesterol

1 mg (1% DV)

Thymocid

1 Gram(s)

AP-Bio

200 mg

AlvioLife Herbal Blend

200 mg

Quercetin

150 mg

📊 Market median: 500.0mg (283 products) 📚 173 studies (Tier A: 0, B: 62)

This product: 150mg

Astragalus Root Extract

50 mg

📊 Market median: 470.0mg (230 products) 📚 9 studies (Tier A: 3, B: 3)

This product: 50mg

Other Ingredients

Gelatin Glycerin Olive Oil Sunflower Lecithin yellow Beeswax Water, Purified Turmeric Maltodextrin

Label Claims — Verification

❓ All Other

❓ Structure/Function

All Other (100% of products) Structure/Function (81% of products) Nutrient (3% of products)

Target Groups

Adult (18 - 50 Years) Gluten Free

Product Information

📋 Directions for Use

Doctor's suggested use: Take 2 softgels once daily with a meal.

⚠️ Warnings & Precautions

Precautions: Consult a health care practitioner if you are pregnant or nursing, have a serious medical condition, or use any medications.

Keep out of reach of children.

🧪 Formulation Notes

Doctor-Developed Formula by Stephen Sinatra, MD Dr. Sinatra was a pioneer in integrative cardiology and anti-aging medicine. His 40+ years of research, clinical experience, and work with supplement leader Healthy Directions led to the development of Lung & Bronchial Support, featuring clinically validated key ingredients for clear breathing and normal lung function.

Gluten Free

Additional Information

Get to know the doctors at DoctorsPreferred.com Doctor Developed

Triple Tested CGMP Certified Facility

Doctor Formulated Doctor Formulated

Product Details

UPC / SKU 8 10047 39131 9

DSLD Entry Date 2024-05-23

Product Type Other Combinations

Form Softgel Capsule

Brand Doctors' Preferred

DSLD ID 309892

Data Updated 2026-04-11

Research Evidence

9 Research Sources

60 Avg Quality Score

5 Meta Analysis

2 Cochrane Review

1 Systematic Review

1 Rct

B Astragalus (a traditional Chinese medicine) for treating chronic kidney disease.

Cochrane Review The Cochrane database of systematic reviews

PubMed DOI Cochrane

B Oral Astragalus (Huang qi) for preventing frequent episodes of acute respiratory tract infection in children.

Cochrane Review The Cochrane database of systematic reviews

PubMed DOI Cochrane

B Evaluating traditional Chinese medicine (TCM) Jie Geng and Huang Qi combination on reducing surgical site infections in colorectal cancer surgeries: A systematic review and meta-analysis

Meta Analysis International wound journal 2024

PubMed DOI

B Chronic fatigue syndrome post-COVID-19: triple-blind randomised clinical trial of Astragalus root extract

Rct BMJ supportive & palliative care 2025

PubMed DOI

B Efficacy and potential pharmacological mechanism of Astragalus-Salvia miltiorrhiza combination in diabetic nephropathy: integrating meta-analysis, network pharmacology, molecular docking, and experimental validation

Meta Analysis Renal failure 2025

PubMed DOI

B Renal protective effects and mechanisms of Astragalus membranaceus for diabetic kidney disease in animal models: An updated systematic review and meta-analysis

Meta Analysis Phytomedicine : international journal of phytotherapy and phytopharmacology 2024

PubMed DOI

C Adjuvant therapy with Astragalus membranaceus for post-stroke fatigue: a systematic review

Systematic Review Metabolic brain disease 2020

PubMed DOI

C Efficacy of Astragalus Membranaceus (Huang Qi) for Cancer-Related Fatigue: A Systematic Review and Meta-Analysis of Randomized Controlled Studies

Meta Analysis Integrative cancer therapies 2025

PubMed DOI

C The Effect of Astragalus on Humoral and Cellular Immune Response: A Systematic Review and Meta-Analysis of Human Studies

Meta Analysis Complementary medicine research 2023

PubMed DOI

View all evidence for Astragalus →