In a shaker or jar, combine the beet juice, lime juice, Marukan Lite Seasoned Lite Vinegar, and 1 tablespoon agave or honey. Stir or shake well until fully blended. Taste and adjust the sweetness if needed.
Fill two glasses with ice. Pour the beet mixture evenly between the glasses.
Top each glass with sparkling water and stir gently to combine. Garnish with lime wheels, mint, and beet slices.