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Cinnamon and The flu - a phase IV clinical study of FDA data

Summary:

The flu is reported as a side effect among people who take Cinnamon (cassia cinnamon), especially for people who are female, 60+ old, also take Vitamin D3, and have Multiple sclerosis.

The phase IV clinical study analyzes which people have The flu when taking Cinnamon. It is created by eHealthMe based on reports of 3,898 people who have side effects when taking Cinnamon from the FDA, and is updated regularly.

What is Cinnamon?

Cinnamon has active ingredients of cassia cinnamon. It is often used in diabetes. eHealthMe is studying from 4,110 Cinnamon users. Check the latest studies of Cinnamon.

What is The flu?

The flu (the flu is caused by an influenza virus) is found to be associated with 2,185 drugs and 2,715 conditions by eHealthMe. Check the latest studies of The flu.

On Jul, 10, 2026

3,898 people reported to have side effects when taking Cinnamon.
Among them, 33 people (0.85%) have The flu.

Could Cinnamon cause The flu?

Among these 33 people:

What is the gender of people who have The flu when taking Cinnamon? *

  • female: 80.65 %
  • male: 19.35 %

What is the age of people who have The flu when taking Cinnamon? *

  • 0-1: 0.0 %
  • 2-9: 0.0 %
  • 10-19: 0.0 %
  • 20-29: 0.0 %
  • 30-39: 0.0 %
  • 40-49: 16.67 %
  • 50-59: 16.67 %
  • 60+: 66.67 %

What are other drugs people take besides Cinnamon? *

  1. Vitamin D3: 21 people, 63.64%
  2. Vitamin C: 15 people, 45.45%
  3. Epinephrine: 10 people, 30.30%
  4. Fish Oil: 10 people, 30.30%
  5. Metformin: 10 people, 30.30%
  6. Zyrtec: 7 people, 21.21%
  7. Potassium: 7 people, 21.21%
  8. Vitamin B12: 7 people, 21.21%
  9. Acetaminophen: 7 people, 21.21%
  10. Magnesium: 6 people, 18.18%

What are other side effects people have besides The flu? *

  1. Chills (felling of cold): 15 people, 45.45%
  2. Headache (pain in head): 13 people, 39.39%
  3. Fatigue (feeling of tiredness): 13 people, 39.39%
  4. Feeling Abnormal: 12 people, 36.36%
  5. Cough: 11 people, 33.33%
  6. Pain: 9 people, 27.27%
  7. Upper Respiratory Tract Infection: 9 people, 27.27%
  8. Weakness: 9 people, 27.27%
  9. Sinusitis (inflammation of sinus): 9 people, 27.27%
  10. Nasopharyngitis (inflammation of the nasopharynx): 7 people, 21.21%

What are the existing conditions these people have? *

  1. Immunodeficiency Common Variable: 7 people, 21.21%
  2. Multiple Sclerosis (a nervous system disease that affects your brain and spinal cord. it damages the myelin sheath): 7 people, 21.21%
  3. Migraine (headache): 6 people, 18.18%
  4. Primary Immunodeficiency Syndrome: 5 people, 15.15%
  5. High Blood Pressure: 5 people, 15.15%
  6. Muscle Spasms (muscle contraction): 4 people, 12.12%
  7. Blood Magnesium Decreased: 4 people, 12.12%
  8. Blood Potassium Decreased: 4 people, 12.12%
  9. Depression: 4 people, 12.12%
  10. Joint Pain: 4 people, 12.12%

* Approximation only. Some reports may have incomplete information.

Do you take Cinnamon and have The flu?

- Check whether The flu is associated with a drug or a condition
- Predict drug outcomes for up to one year with AI
- Get an AI agent to monitor your drugs continuously

Related studies:

Effectiveness of, long term effects of, and alternative drugs to Cinnamon:

The flu treatments and more:

How severe was The flu and when was it recovered:

Expand to all the drugs that have ingredients of cassia cinnamon:

Sub-studies by gender and age:

Female: 0-1 2-9 10-19 20-29 30-39 40-49 50-59 60+

Male: 0-1 2-9 10-19 20-29 30-39 40-49 50-59 60+

Browse all side effects of Cinnamon:

a b c d e f g h i j k l m n o p q r s t u v w x y z

Browse all the drugs that are associated with The flu:

Browse all the conditions that are associated with The flu:

How the study uses the data?

The study uses data from the FDA. It is based on cassia cinnamon (the active ingredients of Cinnamon) and Cinnamon (the brand name). Other drugs that have the same active ingredients (e.g. generic drugs) are not considered. Dosage of drugs is not considered in the study.

How to use the study?

DO NOT STOP MEDICATIONS without first consulting your doctor. If there are any serious or long term adverse effects discovered in the study, discuss the study with your doctor to ensure that proper medication management will be in place if applicable.

Who is eHealthMe?

With medical big data and proven AI/ML algorithms, eHealthMe provides a platform for everyone to run phase IV clinical trials. We study millions of patients and 5,000 more each day. Results of our real-world drug study have been referenced on 800+ peer-reviewed medical publications, including The Lancet, Mayo Clinic Proceedings, and Nature. Our analysis results are available to researchers, health care professionals, patients (testimonials), and software developers (open API).

WARNING, DISCLAIMER, USE FOR PUBLICATION

WARNING: Please DO NOT STOP MEDICATIONS without first consulting a physician since doing so could be hazardous to your health.

DISCLAIMER: All material available on eHealthMe.com is for informational purposes only, and is not a substitute for medical advice, diagnosis, or treatment provided by a qualified healthcare provider. All information is observation-only. Our phase IV clinical studies alone cannot establish cause-effect relationship. Different individuals may respond to medication in different ways. Every effort has been made to ensure that all information is accurate, up-to-date, and complete, but no guarantee is made to that effect. The use of the eHealthMe site and its content is at your own risk.

If you use this eHealthMe study on publication, please acknowledge it with a citation: study title, URL, accessed date.

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