Bud Light Seltzer, with only 100 calories, 5% alc/vol, and less than a gram of sugar, you might as well have another one. Bud Light Seltzer's unique 5-step filtration process ensures a clean finish, with no lingering aftertaste. Our natural carbonation and quality ingredients like sparkling water, real cane sugar, and natural fruit flavor create a light and bubbly seltzer for any occasion.