Use agave, not sugar.
Whether it's table sugar, maple syrup, agave, or honey, it's largely empty calories and so should be eaten in moderation. "When it comes to weight loss, a sugar is a sugar is a sugar," says Gazzaniga-Moloo. It is true that the agave can taste sweeter than the same amount of sugar, so if it takes less to give you the same sensation, that could conceivably lead to taking in fewer calories. Whether it would be enough to significantly affect weight loss is another question.