Diabetes Type 1 & 2
1-6 grams (1 teaspoon = 4.75 grams) of cassia cinnamon PO qD for up to 4 months
2-6 g/d PO
3-7 mL PO TID
Diabetes, GI antispasmodic/antiflatulent, diarrhea, dysmenorrhea
Cold, influenza, general antimicrobial (essential oil)
Placebo-controlled human trial demonstrated decr blood glucose, triglycerides, LDL, total cholesterol in type 2 diabetes (dose-dependent: 6 g/d most effective)
Possibly effective as antispasmodic
Serious - Use Alternative
Significant - Monitor Closely
Frequency Not Defined
Essential oil may irritate mucous membranes
Excessive doses may cause hypoglycemia
Pregnancy (> amounts found in food)
Most preparations contain cassia cinnamon, a coumarin-containing variety
Pregnancy & Lactation
Pregnancy Category: N/A
A:Generally acceptable. Controlled studies in pregnant women show no evidence of fetal risk.
B:May be acceptable. Either animal studies show no risk but human studies not available or animal studies showed minor risks and human studies done and showed no risk.
C:Use with caution if benefits outweigh risks. Animal studies show risk and human studies not available or neither animal nor human studies done.
D:Use in LIFE-THREATENING emergencies when no safer drug available. Positive evidence of human fetal risk.
X:Do not use in pregnancy. Risks involved outweigh potential benefits. Safer alternatives exist.
NA:Information not available.
Mechanism of Action
Cinnamic Acid - hypoglycemic properties
Volatile (essential) oils demonstrate antimicrobial activity in vitro, & decrease smooth muscle spasm
Tannins are astringent (anti-hemorrhagic)