Iron content in jaggery is roughly 11 milligrammes per 100 grammes, or around 61 percent of the RDI (2). Although this seems great, it's unlikely that you'd consume 100 grammes of jaggery in a single session. A tablespoon or teaspoon is a more realistic serving size. A tablespoon (20 grammes) of iron contains 2.2 milligrammes, or roughly 12% of the RDI.