Has any one noted a gastrointestional upset from ingesting cinnamon?

Answer 1

In medicine it acts like other volatile oils and once had a reputation as a cure for colds. It has also been used to treat diarrhea and other problems of the digestive system.[2] Cinnamon is high in antioxidant activity (PMID 16190627, PMID 10077878). The essential oil of cinnamon also has antimicrobial properties (PMID 16104824), which aid in the preservation of certain foods.[3]

In the media, "cinnamon" has been reported to have remarkable pharmacological effects in the treatment of type II diabetes. However, the plant material used in the study (PMID 14633804) was actually cassia, as opposed to true cinnamon. Please refer to cassia's medicinal uses for more information about its health benefits. Cinnamon has traditionally been used to treat toothache and fight bad breath and its regular use is believed to stave off common cold and aid digestion.[4]

It appears to help with diabetes but there is no mention of gastro problems. It is antibiotic in nature which could mess up the stomachs physiology.

Answer 2

Anything and every thing can cause a food allergy. Cinnamon is a spice and some spices trigger acid production. Take a good antacid tablet or liquid gel.