There has been a fierce debate among dieticians about whether cinnamon can help control blood glucose levels for people with diabetes. While the spice, made from the bark of trees, has long been a part of traditional medicine, clinical trials have offered differing opinions on what it can do to help those with Type 2 diabetes.

Now a new research effort is seeking to find consensus on cinnamon’s value. Researchers at the Western University of Health Sciences in California conducted a review and meta-analysis of diabetes and cinnamon trials to see whether the data from those studies were valid. The researchers examined 10 trials over the past decade to judge the validity of the data gathered.