Leucine Nutrition Facts: Calories, Macros & Health Benefits
Summary: 100g of leucine contains 400 calories, 99g protein, 0g carbs, and 0g fat. Leucine is a good source of essential vitamins and minerals.
Nutrition Facts — per 100g
| Nutrient | Amount | % Daily Value |
|---|---|---|
| Calories | 400 kcal | 20% |
| Protein | 99.0g | 198% |
| Carbohydrates | 0.00g | 0% |
| Total Fat | 0.00g | 0% |
Is Leucine Good for You?
Yes, Leucine is excellent for you. Per 100g, it delivers 99g of protein (198% Daily Value) and 400 calories (20% Daily Value), making it an exceptionally rich source of amino acids that support muscle growth, recovery, and metabolic health.
Key Health Benefits of Leucine
Supports Muscle Growth and Repair — With 99g of protein per 100g serving, Leucine provides essential amino acids that trigger muscle protein synthesis, helping your body build and maintain lean muscle tissue after workouts.
Boosts Metabolic Function — The high protein content (198% Daily Value) increases thermogenesis, meaning your body burns more calories digesting it compared to carbohydrates or fats, supporting weight management goals.
Enhances Energy Production — At 400 calories per 100g, it is an efficient, protein-dense energy source that fuels intense physical activity without excess carbohydrates or added sugars.
Promotes Satiety and Appetite Control — The substantial protein density helps you feel fuller longer, reducing overall calorie intake and supporting adherence to balanced nutrition plans.
Supports Immune and Hormonal Health — Amino acids in Leucine play critical roles in producing antibodies, hormones, and enzymes that strengthen immunity and regulate metabolic processes throughout your body.
How Does Leucine Compare?
Compared to standard whey protein isolate, Leucine stands out with its concentrated amino acid profile—delivering nearly double the protein density per gram. While whey typically contains 90g protein per 100g with added carbohydrates and lactose, it is almost pure protein, making it ideal for those prioritizing maximum amino acid intake with minimal other macronutrients.
Frequently Asked Questions
How many calories are in leucine?
Leucine contains 400 calories per 100g, which represents 20% of a standard 2,000-calorie daily diet. The vast majority of these calories come from its protein content.
Is leucine good for weight loss?
Yes, it is beneficial for weight loss because the high protein content (99g per 100g) increases satiety and boosts your metabolism through the thermic effect of protein digestion. This combination helps reduce hunger while increasing calorie burn.
How much protein does leucine contain per 100g?
Leucine provides 99g of protein per 100g serving, delivering 198% of the Daily Value—making it one of the most protein-concentrated foods available.
Is leucine suitable for a keto diet?
Absolutely, it is an excellent keto-friendly option since it is virtually pure protein with minimal carbohydrates, supporting ketosis while providing the amino acids necessary for muscle preservation during a low-carb diet.
How should you store leucine to maintain freshness?
Store it in a cool, dry place away from direct sunlight and moisture, ideally in an airtight container or resealable bag. When kept properly, it maintains nutritional integrity for extended periods.
How to Track Leucine Nutrition with Gram
The Gram app makes tracking Leucine simple by letting you log it instantly—whether by typing the food name or using our AI-powered food scanner to photograph your serving. Once logged, you’ll see a complete nutrient breakdown showing exactly how much protein, calories, and amino acids you’ve consumed, helping you stay aligned with your fitness and nutrition goals.
Frequently Asked Questions
How many calories are in leucine?
Leucine contains 400 calories per 100g, which represents 20% of a standard 2,000-calorie daily diet. The vast majority of these calories come from its protein content.
Is leucine good for weight loss?
Yes, it is beneficial for weight loss because the high protein content (99g per 100g) increases satiety and boosts your metabolism through the thermic effect of protein digestion. This combination helps reduce hunger while increasing calorie burn.
How much protein does leucine contain per 100g?
Leucine provides 99g of protein per 100g serving, delivering 198% of the Daily Value—making it one of the most protein-concentrated foods available.
Is leucine suitable for a keto diet?
Absolutely, it is an excellent keto-friendly option since it is virtually pure protein with minimal carbohydrates, supporting ketosis while providing the amino acids necessary for muscle preservation during a low-carb diet.
How should you store leucine to maintain freshness?
Store it in a cool, dry place away from direct sunlight and moisture, ideally in an airtight container or resealable bag. When kept properly, it maintains nutritional integrity for extended periods.
Track your nutrition with Gram
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Nutrition data sourced from USDA FoodData Central. Track leucine and thousands of other foods with the Gram app.