Coconut Sugar looks like brown sugar and has a strong caramel taste. It is essentially the same as palm sugar and jaggery, which can be made from palm sap or sugar cane. Coconut sugar undergoes littele processig so, as with other unrefined sugars, it retains some of the natural vitamins, minerals, fibre and antioxidants. the nutrients in coconut sugar (or other unrefines sugar) are likely to have a minimal effect unless you eat large amounts, whe any benefit will be outweighed by all the sugar you're eating.
