Quick note on using sugar --> I want to say sugar is totally optional in this recipe, but to be very honest, I can't. I mean it tastes fine even without it, but the little bit of sugar does change the flavor profile for the better. So I'd say, try it both ways, and see what works for you.
Please note: The nutrition values are best estimates provided as a courtesy. The exact values can vary depending on the exact ingredients or brands used. If you rely on them for your specific diet and/or health issues, please consult a registered dietician or nutritionist.