A 221 ml can of Coca‑Cola Original contains 25 grams of sugar (6 teaspoons) while a 236 ml glass of orange juice has 21 grams (5 teaspoons), apple juice has 24 grams (6 teaspoons), and grape juice has 36 grams (9 teaspoons). That said, there's no real difference in levels of sugar in Coca-Cola and fruit juice.