no you don't need added sugar
the body turns everything you eat into energy. the sugar industry has done a great job the past 30 years convincing people that sugar is okay, now it is all about IIFYM and moderation blah blah blah. the results are obesity, type 2 diabetes and every other disease like cancer going sky high. sugar is a magnet to disease. avoid it at all costs. the sugar industry also pollutes our lakes, rivers, and oceans. they are one of the most evil industries in the US
stick to natural foods like fruit, raw honey, etc. if you have a sweet tooth. no refined sugar at all