Several studies have looked at the impact of cinnamon on blood pressure. Some meta-analyses suggest a slight decrease in systolic and diastolic blood pressure. These effects were mainly observed after regular consumption for several weeks, particularly in people who were overweight or had metabolic disorders.
However, these results are not found systematically. Many studies show very little or no effect.
Although cinnamon contains active compounds, such as cinnamaldehyde, known for their antioxidant and anti-inflammatory properties, there is currently no evidence to confirm that they cause a clinically significant and lasting reduction in blood pressure in humans.
Beware of food supplements
Consumed in normal dietary quantities, cinnamon generally does not pose a problem. On the other hand, caution is required with food supplements, which can contain high doses and are sometimes poorly controlled. It should also be noted that certain types of cinnamon, particularly Cassia, are rich in coumarins, substances that can be toxic to the liver if consumed excessively. Medical advice is therefore recommended, especially in people under antihypertensive treatment.
Cinnamon can therefore be part of a varied and balanced diet, without replacing prescribed medications or essential lifestyle measures, such as physical activity, salt reduction and stress management.
Source : Cleveland Clinic – American Heart Association (AHA) – European Food Safety Authority (EFSA)
