What about coconut sugar? Is it wholesome?

Coconut sugar is wholesome. It is prepared from the sap of coconut flowers in the same way as jaggery is prepared. 

But, it is not easily available in normal grocery stores. However, it is easily available online. 

A word of caution : if using coconut sugar, please go for trusted, conscious brands only. There are many brands in the market selling coconut sugar of poor quality.