Nutrition Intelligence

High-Protein, Low-Calorie Foods, Compared Beyond Protein

Q: What foods have the most protein for the fewest calories?

Lean seafood, poultry, and lean cuts of red meat or game generally provide the most protein per calorie among common whole foods. Tuna, venison loin, turkey breast, shrimp, chicken breast, and pork tenderloin perform strongly.

Q: Are high-protein, low-calorie foods good for weight loss?

They can make a calorie deficit easier to structure and can support muscle retention when paired with resistance training. No individual food causes fat loss on its own.

Q: Is salmon or chicken better for protein?

Chicken breast provides more protein per calorie. Salmon still provides substantial protein and adds omega-3 fats, vitamin D, vitamin B12, and selenium. The better choice depends on what the rest of the diet needs.

Q: Why compare foods per 100 calories?

A 100-calorie basis makes protein and nutrient efficiency easier to compare across foods. It can also make very low-calorie vegetables look unusually strong, so normal serving sizes should be considered too.

Q: Does cooking change nutrient density?

Yes. Cooking can reduce some nutrients, make others easier to absorb, and change water content. This resource identifies whether each USDA food entry is raw, cooked, canned, or prepared.

Lean seafood, poultry, and lean red meat or game usually provide the most protein for the calories. But protein efficiency does not describe the entire food. Beef, bison, venison, fish, dairy, eggs, legumes, vegetables, fruit, grains, and nuts solve different nutritional problems.

Compare 37 familiar foods by protein per 100 calories, micronutrient density, and realistic serving size. The data comes from USDA FoodData Central. The calculated score and its limits are explained openly.

Explore the Data How We Score Foods

Read the plain-English guide to choosing high-protein, low-calorie foods

Last reviewed: August 31, 2026

Interactive Explorer

Which Foods Give You the Most Protein and Nutrients for the Calories?

Foods farther right provide more protein per 100 calories. Foods higher on the chart provide more of the 20 nutrients included in this model. Select any point for normal serving context.

Lower placement does not make a food unhealthy. It means the food scores lower on these two specific measurements.

What am I looking at?

Right means more protein for the calories. Higher means more capped Daily Value contributions across the included nutrients.

Why does it matter?

Upper-right foods can help when both protein efficiency and broad nutrient coverage matter.

What should I not conclude?

This is not a universal health ranking. The score does not fully capture absorption, fatty-acid quality, processing, or your individual needs.

View the complete comparison as a table

USDA-based comparison of common foods
Food	Category	Protein / 100 kcal	Score	Typical serving	Calories	Protein
Chicken Breast	Meat & Poultry	18.8 g	28.0	4 oz cooked	187	35.0 g
Turkey Breast	Meat & Poultry	20.5 g	31.5	4 oz cooked	166	34.0 g
Tuna	Seafood	22.6 g	36.8	4 oz canned, drained	97	21.9 g
Salmon	Seafood	10.7 g	39.4	4 oz cooked	233	25.0 g
Greek Yogurt	Dairy	17.3 g	29.5	3/4 cup plain, nonfat	100	17.3 g
Top Sirloin	Red Meat & Game	16.7 g	36.9	3 oz cooked	156	26.0 g
Ground Bison	Red Meat & Game	14.2 g	37.4	3 oz cooked	152	21.6 g
Venison Loin	Red Meat & Game	20.1 g	46.4	3 oz cooked	128	25.7 g
Lentils	Legumes & Soy	7.8 g	33.1	1 cup cooked	230	17.9 g
Spinach	Vegetables	12.4 g	85.0	1 cup raw	7	0.9 g
Broccoli	Vegetables	6.8 g	72.7	1/2 cup cooked	27	1.9 g
Almonds	Nuts & Seeds	3.7 g	21.5	1 oz	162	5.9 g

Sortable Food Ranking

Compare Common Foods

Change the metric to see why one food can look efficient in one comparison and ordinary in another.

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Serving-Size Reality Check

100 Calories Is Not Always a Serving

Standardized comparisons are useful, but people eat portions, not data points. One hundred calories of spinach is a very large amount of food. One hundred calories of almonds is less than a normal handful.

The System

Calories Are Only One Dimension

Calories tell you how much energy a food provides. They do not tell you how that energy is packaged.

Protein Efficiency

Protein per calorie can matter during fat loss or when appetite is limited. It does not measure total food quality.

Micronutrient Density

Vitamins and minerals support processes from oxygen transport to muscle contraction. A high score still does not make one food complete.

Serving Size

Per-calorie comparisons create a common scale. A typical serving shows what is practical at one meal.

Nutrition Works as a System

Chicken can cover protein efficiently. Lean beef, bison, and venison contribute protein, iron, zinc, and vitamin B12. Salmon adds omega-3 fats. Vegetables and legumes add fiber and different micronutrients.

Fitness Context

Build the Diet Around the Goal

Fat Loss

A calorie deficit drives weight loss. Protein, fiber, food volume, and resistance training help make that deficit more manageable and help protect lean tissue.

Understand calorie deficits and body composition

Muscle Gain

Training creates the demand. Adequate protein supplies amino acids used during repair. Total energy, carbohydrate availability, sleep, and progression shape the result.

See how muscle growth accumulates

General Health

Variety matters because foods contribute different nutrients. A broad pattern of minimally processed foods is more useful than chasing one highest-scoring item.

See why protein cannot carry the whole diet

Transparent Method

How We Evaluate Nutrient Density

Raw nutrition values come from USDA FoodData Central SR Legacy entries for identified preparations such as raw, cooked, canned, or drained. FDA Daily Values provide a common reference point.

Each nutrient is converted to its percentage of the FDA Daily Value per 100 calories.
Each nutrient can contribute no more than 20 percentage points. This prevents one extreme value from controlling the entire score.
The 20 capped contributions are averaged and converted to a 0 to 100 score.
Protein per 100 calories is calculated separately so protein efficiency does not become hidden inside the micronutrient score.
Normal serving values are calculated from the same USDA per-100-gram entries.

This is the Affluent Fitness Nutrient Density Score. USDA and FDA provide the underlying data and reference values. They did not create or endorse this score.

Some USDA entries do not report every nutrient in the formula. An unreported value is treated as zero, so incomplete analytical coverage can lower a food's score. The score is a comparison aid, not a complete judgment of food quality.

Data Sources

USDA FoodData Central for food composition data and source identifiers.
U.S. Food and Drug Administration for current Daily Values.
NIH Office of Dietary Supplements for choline context and the 550 mg Daily Value.

Common Questions

High-Protein and Nutrient-Dense Food FAQ

What foods have the most protein for the fewest calories?

Lean seafood, poultry, and lean red meat or game generally perform best. Tuna, venison loin, turkey breast, shrimp, chicken breast, and pork tenderloin provide substantial protein for the calories.

What is nutrient density?

Nutrient density describes how much useful nutrition a food provides relative to its calories or serving size. There is no single universal formula, so the included nutrients and calculation method should always be disclosed.

Are high-protein, low-calorie foods good for weight loss?

They can help someone meet a protein target inside a calorie budget and may support muscle retention when combined with resistance training. Fat loss still requires an energy deficit over time.

Is salmon or chicken better for protein?

Chicken breast provides more protein per calorie. Salmon provides somewhat less protein efficiency but adds omega-3 fats and more vitamin D. Which is more useful depends on what the rest of the diet already supplies.

Why compare foods per 100 calories?

It provides a standardized efficiency comparison. It can also exaggerate how practical very low-calorie foods appear, which is why this page includes normal servings beside the standardized view.

Does cooking change nutrient density?

Yes. Cooking can change water content, reduce some heat-sensitive nutrients, and make other compounds easier to absorb. Always compare the preparation you actually eat.

Next Step

Turn the Comparison Into a Practical Target

Knowing which foods are efficient only helps after you know how much protein fits your body, training, and goal.

Calculate Your Protein Target Contact Affluent Fitness