Lowest-Calorie Dairy, Ranked Per 100 g (2026)

The lowest-calorie dairy is Acid Whey at 24 kcal per 100 grams, followed by Sweet Whey at 27 kcal per 100 grams.

This post ranks dairy products by calories per 100 grams using USDA FoodData Central data. The focus is on whole foods that can assist in weight management.

Why Calories Matters for Weight Management

Calories are a crucial factor in weight management, as consuming fewer calories than expended can lead to weight loss. Low-calorie dairy options can provide essential nutrients while helping to control calorie intake. Incorporating such foods into a balanced diet is associated with healthier eating patterns. This is educational information, not medical advice.

Lowest-Calorie Dairy, Ranked Per 100 g

Below is a ranked list of the lowest-calorie dairy options per 100 grams.

#	Food	Typical serving	Calories/serving (kcal)	Calories/100 g (kcal)	Protein (g)	Fiber (g)	Sugar (g)	Sodium (mg)
1	Acid Whey (fluid)	1 serving (246 g)	59	24	1.9	0.0	12.6	118
2	Sweet Whey (fluid)	1 serving (246 g)	66	27	2.1	0.0	12.6	133
3	Nonfat Milk with Vitamins A and D	1 cup (246 g)	84	34	8.4	0.0	0.0	101
4	Nonfat Milk (fat free, with vitamins A and D)	1 cup (229 g)	78	34	7.9	0.0	0.0	94
5	Nonfat Calcium-Fortified Milk (Fat Free)	1 serving (247 g)	86	35	8.4	0.0	12.0	128
6	Fat-Free Milk	1 serving (245 g)	86	35	8.3	0.0	12.5	103
7	Lowfat Buttermilk	1 serving (245 g)	98	40	8.1	0.0	13.1	363
8	Nonfat Protein-Fortified Milk	1 serving (246 g)	101	41	9.7	0.0	0.0	145
9	Lowfat Milk 1% (with vitamins A and D)	1 serving (244 g)	102	42	8.2	0.0	12.7	107
10	Vanilla or Lemon Nonfat Yogurt with Vitamin D	1 serving (170 g)	73	43	6.6	0.0	12.8	100
11	Lowfat Plain Kefir	1 serving (243 g)	104	43	9.2	0.0	11.2	97
12	Nonfat Vanilla or Lemon Yogurt (sweetened with low-calorie sweetener)	1 serving (170 g)	73	43	6.6	0.0	12.8	100
13	Lowfat Milk, 1% Milkfat	1 cup (246 g)	106	43	8.3	0.0	0.0	96
14	Lowfat 1% Milk with Vitamins A and D	1 cup (246 g)	118	48	9.7	0.0	0.0	143
15	Reduced Fat Milk 2% with Vitamins A and D	1 cup (227 g)	114	50	7.6	0.0	0.0	89

How Nutrola Tracks Calories for You

Nutrola is an AI nutrition tracking app that identifies foods from a photo and returns calories and macronutrients, including calories, from a database of more than 1.8 million foods. It also supports barcode scanning and voice logging.

For related references, see lowest-calorie vegetables, lowest-calorie fruits.

How We Compiled These Numbers

Data is sourced from USDA FoodData Central SR Legacy and Foundation Foods. Each entry reflects per-serving values normalized to per 100 grams, utilizing USDA household weights. This information is provided for educational purposes only, not as medical advice.

Frequently Asked Questions (FAQ)

What is the calorie content of Acid Whey?

Acid Whey contains 24 kcal per 100 grams.

How many calories are in Sweet Whey?

Sweet Whey has 27 kcal per 100 grams.

What are the calories in Nonfat Milk with Vitamins A and D?

Nonfat Milk with Vitamins A and D contains 34 kcal per 100 grams.

Which dairy has the lowest calories?

The dairy with the lowest calories is Acid Whey at 24 kcal per 100 grams.

How many calories does Lowfat Buttermilk have?

Lowfat Buttermilk contains 40 kcal per 100 grams.

What is the calorie content of Fat-Free Milk?

Fat-Free Milk contains 35 kcal per 100 grams.

Key Takeaways

• Acid Whey has 24 kcal per 100 g.
• Sweet Whey contains 27 kcal per 100 g.
• Nonfat Milk with Vitamins A and D has 34 kcal per 100 g.
• Nonfat Milk (fat free) also has 34 kcal per 100 g.
• Fat-Free Milk contains 35 kcal per 100 g.
• Lowfat Buttermilk has 40 kcal per 100 g.