| Product | Lactose content (grams) |
| Milk (1 cup) | |
| Whole, 2%, 1%, skim | 9 to 14 |
| Buttermilk | 9 to 12 |
| Evaporated milk | 24 to 28 |
| Sweetened condensed milk | 31 to 50 |
| Lactaid milk (lactose-reduced) | 3 |
| Goat's milk | 11 to 12 |
| Acidophilus, skim | 11 |
| Yogurt, low fat (1 cup) | 4 to 17 |
| Cheese (1 ounce) | |
| Cottage cheese (1/2 cup) | 0.7 to 4 |
| Cheddar (sharp) | 0.4 to 0.6 |
| Mozzarella (part skim, low moisture) | 0.08 to 0.9 |
| American (pasteurized, processed) | 0.5 to 4 |
| Ricotta (1/2 cup) | 0.3 to 6 |
| Cream cheese | 0.1 to 0.8 |
| Butter (1 pat) | 0.04 to 0.5 |
| Cream (1 tablespoon) | |
| Light, whipping, sour | 0.4 to 0.6 |
| Ice cream (1/2 cup) | 2 to 6 |
| Ice milk (1/2 cup) | 5 |
| Sherbet (1/2 cup) | 0.6 to 2 |
