Cinnamon is a commonly used Chinese medicinal material. Its main functions and effects are as follows:

1. Improve blood sugar: Cinnamon contains a component called cinnamic aldehyde, which can improve blood sugar levels. Insulin sensitivity promotes the reduction of blood sugar, which is helpful for diabetic patients.

2. Reduce fat and weight: Cinnamon can promote fat metabolism, lower blood lipid levels, and help reduce weight.

3. Warm the stomach and eliminate food: Cinnamon has a certain warming property, which helps promote gastrointestinal motility, enhance digestive function, and relieve symptoms such as stomach pain and diarrhea.

4. Anti-inflammatory and analgesic: Cinnamon contains antioxidants and anti-inflammatory ingredients, which can relieve pain, reduce inflammation, relieve itching and other symptoms.

Cinnamon has fewer side effects, but excessive consumption may cause some adverse reactions, such as:

1. Indigestion: Cinnamon has too strong warming properties, and excessive use may cause Gastrointestinal discomfort, diarrhea and other symptoms.

2. Allergy: Cinnamon contains some ingredients that can easily cause allergic reactions, and sensitive people should consume it with caution.

3. Irritation: Cinnamon can irritate the gastric mucosa, so people with symptoms such as gastric ulcers should avoid eating it.