Big Red has 160 calories and 43 grams of sugar in a 12 oz serving.
Learn more at https://www.kdpproductfacts.com/product/BIG_RED_BIG_RED_12
Irn Bru has 65 calories and 16 grams of sugar in a 11.15 oz serving.
Learn more at https://www.agbarr.co.uk/our-brands/irn-bru/