Ceylon Cinnamon is the best choice for a possible weight loss program because it has low Coumarin levels and won’t damage your liver if taken daily. Cassia Cinnamon has high levels of Coumarin (5%-8%) which will kill your liver. So you might end up skinny and die from liver failure. Cassia Cinnamon is acceptable for occasional consumption but if you are taking Cinnamon on a daily basis for weight loss then Ceylon Cinnamon is the better choice.
The best way to loose weight is to reduce your food intake. And Cinnamon might help by reducing the hunger pangs. It does not seem to have any property to burn away your fat cells. But it could possibly prevent the accumulation of fatty cells. Ultimately it is your decision. Try it for three months. It it fails, the cost would be far cheaper than any other other possible remedy with virtually zero side effects. But it is essential to get good quality Ceylon Cinnamon.