How many calories are in Whey Protein?

Whey Protein contains 39 calories per 100g serving, with 80g of protein, 4g of carbohydrates, and 6g of fat.

Is Whey Protein good for fat loss?

Whey Protein has a macro efficiency score of 1.00 (scale: 0–1.0). It provides 821% of its calories from protein, making it an excellent choice for fat loss goals.

1.00

Verified Asset

High Efficiency

Keto Protocol

Whey Protein.

Metabolic profile analysis. Technical breakdown of Whey Protein and its impact on skeletal muscle retention and daily energy expenditure.

Total Energy39kcal

Bio-Protein80g

Carbohydrates4g

Total Lipids6g

Nutritional Efficiency Report

Whey Protein is a very low-calorie food with elite-protein content. At 39 kcal per 100g, it delivers 80g of protein — representing 821% of its total caloric load. Carbohydrates account for 41% and fats for 138% of calories.

"Efficiency Score 1.00 — this asset ranks in the top tier of the DataFood database for protein delivery per calorie. Optimal for fat loss, lean bulking, and body recomposition phases."

At only 4g net carbs per 100g, it fits strict ketogenic and carnivore protocols.

With only 39 kcal per 100g, Whey Protein is a high-volume food — you can consume a large serving while keeping total caloric intake controlled. This makes it particularly effective for hunger management in deficit phases.

Protocol Compatibility

Ketosis Impact

At only 4g net carbs per 100g, it fits strict ketogenic and carnivore protocols.

Thermic Effect (TEF)

Protein content of 80g per 100g triggers a significant Thermic Effect of Food. The body expends approximately 20–30% of protein calories during digestion, yielding a net caloric benefit compared to equivalent fat or carbohydrate sources.

Expand Your Protocol.

Based on the metabolic profile of Whey Protein, these related data nodes are most relevant to your nutrition architecture:

High Protein Foods Keto Verified Assets Fat Loss Foods Database

Integrate Asset.

Use the clinical weekly planner to distribute Whey Protein across your metabolic windows.

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1. Biological Metrics

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2. Dietary Logic

Institutional Disclaimer: The nutritional data provided for Whey Protein is derived from clinical databases and algorithmic estimation. This report is for metabolic infrastructure planning only and does not constitute medical advice. Consult a clinical nutritionist before implementing aggressive deficit protocols.