Protein content
8 g of protein in 1 cup (244 g) of lactose-free milk, or 5.4 g for every 100 kcal it supplies.
Share of this food's calories that come from protein - it is moderately protein-dense.
| Protein per 100 kcal | 5.4 g |
|---|---|
| Protein per 100 g | 3.27 g |
| Protein per serving | 8 g in 1 cup (244 g) |
| Calories from protein | 21% |
| Protein to fat | 1 g per 1 g fat |
| Rank in dairy foods, per 100 kcal | 59th of 81 |
| Rank of all foods, per 100 g | 609th of 796 |
| Share of 50 g Daily Value | 16% per serving |
| Protein quality | Complete protein |
One 1 cup, 8 g protein.
Every 100 kcal of lactose-free milk brings 5.4 g of protein. On that measure it ranks 59th of the 81 dairy foods in this database and 450th of all 796 foods on the site. Measured by weight instead, its 3.27 g per 100 g ranks 74th in its group.
Around 21% of the calories in lactose-free milk come from protein, so it is moderately protein-dense. It contributes to a day's protein total, but the bulk of what it delivers is energy rather than amino acids - treat it as a contributor alongside a denser source, not as the protein in a meal.
Weight for weight, lactose-free milk has 1 g of protein for each gram of fat (3.27 g against 3.2 g per 100 g).
Set against aged goat cheese, another dairy food entry in the database, a serving carries about 0.5 g less protein (aged goat cheese has 8.5 g per 1 oz).
It is a complete protein - it supplies all nine essential amino acids in adequate amounts, so it can carry a meal's protein on its own. The serving quoted here is measured by volume at 244 g, and it covers about 16% of the 50 g FDA Daily Value for protein.
The lactose is split into glucose and galactose, leaving the protein unchanged.
Serving sizes
| Portion | Weight | Protein | Calories |
|---|---|---|---|
| 100 g | 100 g | 3.27 g | 61 kcal |
| 1 cup (serving used here) | 244 g | 8 g | 149 kcal |
| 1 fl oz | 30.5 g | 1 g | 19 kcal |
Portion weights are the household measures listed on the USDA record; protein and calories scale from the per-100 g figures.
Related
Highest-protein dairy foods per serving · Most protein-dense foods · Highest protein per 100 g
Quick answers
3.27 g. The 1 cup serving used on this page weighs 244 g and so carries 8 g.
5.4 g. That figure divides its 3.27 g of protein per 100 g by its 61 kcal per 100 g, so it does not depend on serving size.
Yes. The protein in lactose-free milk supplies all nine essential amino acids in adequate amounts, so it can carry a meal's protein on its own.
About 16%. One 1 cup serving has 8 g, and the FDA Daily Value for protein is 50 g.
Figures from USDA FoodData Central record #2705392 (Milk, lactose free, whole), FNDDS survey data. USDA data is in the public domain. Values are the published reference figures for that record, not lab measurements for a specific brand or batch.