Yes, sweet relish is healthy. It is a great origin of fiber and vitamins A, C, and K. Furthermore, it contains antioxidants that protect against cell damage. Still, there is no standard answer to this question as it depends on individual dietary needs and preferences. Some people may find that sweet relish is a healthy addition to their diet, while others may choose to avoid it due to the high sugar content. Ultimately, it is up to the individual to decide whether or not sweet relish is a healthy part of their diet.