When it comes to taking cinnamon, there is no one-size-fits-all answer. The amount of cinnamon you can take depends on several factors, including your age, weight, and health condition. In general, it's safe to consume up to six grams (g) of cinnamon per day. This equals about two teaspoons (tsp) of ground cinnamon or four tsp of Ceylon cinnamon sticks. Keep in mind that the majority of research on the health benefits of cinnamon has been conducted using Cassia cinnamon or Ceylon cinnamon. If you're unsure which type of cinnamon you have, it's best to err on the side of caution and use less rather than more.
If you're considering taking a larger amount of cinnamon than what's generally recommended, it's important to speak with your healthcare provider first. This is especially important if you have any underlying medical conditions or are taking any medications that could interact with Cinnamon Supplementation With Cassia Cinnamon Increases Plasma Antioxidant Capacity And Reduces Lipid Peroxidation In Healthy Young Adults: A Randomized Double‐Blind Placebo‐Controlled Clinical Trial https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6432913/