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Milk types

What is Nonfat Milk?

Quick answer

Nonfat milk, also called skim milk or fat-free milk, is cow's milk with the fat removed. In the US the FDA lets a milk product be labeled "skim" or "fat free" only if it has less than 0.5 g of fat per serving. USDA FoodData Central lists fluid nonfat milk with added vitamins A and D at 34 kcal and 0.08 g fat per 100 g.

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In this article
  1. What does nonfat milk mean?
  2. How does it compare with whole milk?
  3. What is in nonfat milk?
  4. Does nonfat milk have vitamins A and D?

What does nonfat milk mean?

Nonfat, skim and fat-free all describe milk with almost all the milkfat taken out. The FDA labeling rule (21 CFR 101.62) says “fat free” requires less than 0.5 g of fat per serving, and that “skim” may be used for milk products under the same fat limit. That page does not define the word “nonfat” itself, so we do not claim a separate legal meaning for it.

How does it compare with whole milk?

FDA’s standard for plain milk (21 CFR 131.110) requires at least 3.25 percent milkfat, so nonfat milk has far less fat than milk sold simply as “milk”.

What is in nonfat milk?

USDA FoodData Central, record 171269 (fluid nonfat milk with added vitamin A and D), per 100 g:

Nutrient Per 100 g
Energy 34 kcal
Fat 0.08 g
Protein 3.37 g
Total sugars 5.09 g
Calcium 122 mg

The sugar is milk sugar (lactose), which is naturally present. Another USDA record for nonfat milk with added nonfat milk solids lists 37 kcal and 129 mg calcium per 100 g, so brands differ a little.

Does nonfat milk have vitamins A and D?

The FDA standard for whole milk says vitamin A (2,000 IU per quart) and vitamin D (400 IU per quart) are optional additions when added. We found no source page on nonfat milk’s vitamin levels, so check the carton.

For health questions about weight, cholesterol or allergies, ask a doctor or dietitian.

People also ask

Is nonfat milk the same as skim milk?

In everyday use, yes. FDA labeling rules allow "skim" for milk products with less than 0.5 g fat per serving, the same limit as "fat free".

How many calories are in nonfat milk?

USDA FoodData Central lists 34 kcal per 100 g for fluid nonfat milk with added vitamin A and D (record 171269).

Does nonfat milk have any fat?

A little. The USDA record lists 0.08 g per 100 g, and FDA allows the fat-free label below 0.5 g per serving.

General information only, not medical advice. If you have a health condition or are pregnant, ask your doctor before changing what you drink.

Sources

  1. USDA FoodData Central: Milk, nonfat, fluid, with added vitamin A and vitamin D (fat free or skim), read 5 Nov 2026
  2. eCFR: 21 CFR 101.62 Nutrient content claims for fat, fatty acid, and cholesterol content, read 5 Nov 2026
  3. eCFR: 21 CFR 131.110 Milk, read 5 Nov 2026
Written by Drinks Type Editorial Team · Published Aug 1, 2025 · Updated Nov 5, 2026
About · How we verify this · Editorial policy · Corrections

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