Lentils Macros: Complete Nutrition Guide

Lentils are a plant-based protein powerhouse. They’re cheap, versatile, and pack more protein per calorie than almost any other non-meat food. For vegetarians, vegans, and anyone trying to eat less meat without sacrificing protein, lentils are essential.

But lentils are also high in carbohydrates, which confuses some macro trackers. The key is understanding that lentil carbs are fundamentally different from bread or pasta carbs—most of those carbs are fiber that your body can’t digest for energy.

This guide breaks down lentil macros completely, so you can use them strategically in your diet.

Lentils Macros: Quick Reference

Here’s what cooked lentils deliver nutritionally.

Per Cup (Cooked, 198g)

Nutrient	Amount	% Daily Value
Calories	230	12%
Protein	18g	36%
Total Carbs	40g	15%
Fiber	16g	57%
Net Carbs	24g	-
Fat	0.8g	1%
Iron	6.6mg	37%
Folate	358mcg	90%
Potassium	731mg	16%

Per 100g (Cooked)

Nutrient	Amount
Calories	116
Protein	9g
Total Carbs	20g
Fiber	8g
Net Carbs	12g
Fat	0.4g

Raw vs Cooked Comparison

Measure	Dry Lentils	Cooked Lentils
Weight	100g	~250g (when cooked)
Calories	353	290 (total from 100g dry)
Protein	25g	22g
Carbs	60g	50g

Important: Lentils roughly double to triple in volume when cooked. 1 cup dry = 2-2.5 cups cooked.

Lentils by Type

Different lentil varieties have nearly identical macros but different cooking properties.

Brown Lentils

Per Cup Cooked	Amount
Calories	230
Protein	18g
Carbs	40g
Fiber	16g
Fat	1g

Best for: Soups, stews, general cooking. Holds shape moderately well.

Green Lentils (Including French Puy)

Per Cup Cooked	Amount
Calories	230
Protein	18g
Carbs	40g
Fiber	16g
Fat	1g

Best for: Salads, side dishes. Holds shape best after cooking.

Red/Orange Lentils

Per Cup Cooked	Amount
Calories	230
Protein	18g
Carbs	40g
Fiber	15g
Fat	1g

Best for: Dal, curries, soups. Cooks fastest, breaks down into creamy texture.

Black Lentils (Beluga)

Per Cup Cooked	Amount
Calories	230
Protein	18g
Carbs	40g
Fiber	16g
Fat	1g

Best for: Salads, elegant dishes. Small, firm, holds shape excellently.

Bottom line: Choose your lentil type based on texture preference and recipe needs—the macros are essentially identical.

Lentils vs Other Protein Sources

How do lentils compare to common protein sources?

Protein Comparison (Per ~20g Protein)

Food	Amount Needed	Calories	Carbs	Fat
Lentils	1.1 cups cooked	253	44g	1g
Chicken breast	3 oz	128	0g	3g
Ground beef (90%)	3 oz	184	0g	10g
Eggs	3 large	234	2g	15g
Tofu	10 oz	226	6g	12g
Black beans	1.3 cups	299	54g	1g
Greek yogurt	1.5 cups	200	12g	1g

Observations:

• Lentils require more calories and carbs than meat for equivalent protein
• Lentils are leaner than most animal proteins (very low fat)
• Among plant proteins, lentils are highly efficient
• Lentils are significantly cheaper per gram of protein

Cost Comparison (Per 20g Protein)

Food	Approximate Cost
Lentils (dry)	$0.25
Chicken breast	$1.50
Ground beef	$2.00
Eggs	$0.75
Tofu	$0.80
Greek yogurt	$1.25

Lentils win on cost by a significant margin.

Compare with Chicken Breast Macros and Eggs Macros for animal protein comparisons.

Lentils vs Other Legumes

How do lentils stack up against beans and other legumes?

Legume (1 cup cooked)	Calories	Protein	Carbs	Fiber	Fat
Lentils	230	18g	40g	16g	0.8g
Black beans	227	15g	41g	15g	0.9g
Chickpeas	269	15g	45g	12g	4.2g
Kidney beans	225	15g	40g	11g	0.9g
Pinto beans	245	15g	45g	15g	1.1g
Navy beans	255	15g	47g	19g	1.1g
Edamame	188	18g	14g	8g	8g

Lentils advantages:

• Highest protein among common legumes
• No soaking required (faster cooking)
• Easiest to digest for most people
• Neutral flavor that works in many dishes

See also: Black Beans Macros | Chickpeas Macros

Understanding Lentil Carbohydrates

The high carb count scares some people away from lentils. Here’s the full picture.

Total Carbs vs Net Carbs

Per cup cooked lentils:

• Total carbs: 40g
• Fiber: 16g
• Net carbs: 24g

That 16g of fiber doesn’t raise blood sugar or provide calories in the traditional sense. Your body can’t digest it for energy.

Glycemic Index

Lentils have a low glycemic index (GI):

• Green/brown lentils: GI ~30
• Red lentils: GI ~26

For comparison:

• White rice: GI ~73
• White bread: GI ~75
• Oatmeal: GI ~55

What this means: Lentils release glucose slowly, providing sustained energy without blood sugar spikes.

Fiber Benefits

That 16g of fiber per cup provides:

• 57% of daily fiber needs in one serving
• Gut health support (feeds beneficial bacteria)
• Cholesterol reduction
• Extended satiety (keeps you full)
• Digestive regularity

Lentils for Different Diet Goals

Lentils for Weight Loss

Verdict: Excellent choice for weight loss.

Why lentils work:

• High fiber creates satiety
• Protein prevents muscle loss
• Low fat keeps calories moderate
• Complex carbs provide lasting energy
• Very affordable

Sample weight-loss meal with lentils:

• 1/2 cup lentils: 115 cal, 9g protein, 8g fiber
• 2 cups vegetables: 60 cal
• 1 tbsp olive oil: 120 cal
• Spices: negligible
• Total: 295 cal, 12g protein, 10g fiber

That’s a filling meal under 300 calories.

Use our Macro Calculator to see how lentils fit your daily targets.

Lentils for Muscle Building

Verdict: Good plant-based option, but not optimal as sole protein source.

Challenges:

• Need more volume for equivalent protein vs meat
• Not a complete protein (low in methionine)
• High fiber can limit total food intake

Solutions:

• Combine with grains (rice, bread) for complete protein
• Use as part of protein rotation, not sole source
• Great for plant-based bulking

Muscle-building lentil bowl:

• 1 cup lentils: 230 cal, 18g protein
• 1 cup rice: 205 cal, 4g protein
• 1 tbsp olive oil: 120 cal
• Vegetables: 50 cal
• Total: 605 cal, 22g protein (complete amino acids)

Lentils for Plant-Based Diets

Verdict: Essential food for vegetarians and vegans.

Role in plant-based eating:

• Primary protein source alongside beans and tofu
• Provides iron (37% DV per cup)
• Excellent folate source (90% DV per cup)
• Budget-friendly protein

Daily plant-based protein plan with lentils:

• Breakfast: Tofu scramble (15g protein)
• Lunch: Lentil soup (18g protein)
• Dinner: Chickpea curry (15g protein)
• Snacks: Nuts, seeds (10g protein)
• Total: 58g protein, all plant-based

Lentils on Keto

Verdict: Too high in carbs for strict keto.

The math:

• 1 cup lentils = 24g net carbs
• Strict keto limit = 20-25g net carbs/day
• One serving would use entire carb budget

If you really want lentils on low-carb:

• Limit to 1/4-1/2 cup serving
• Fit into liberal low-carb (50-100g carbs/day)
• Use as occasional treat, not staple

Keto alternatives for similar texture/dishes:

• Lupini beans (much lower carb)
• Black soybeans
• Mushrooms for texture

Lentils for IIFYM/Flexible Dieting

Lentils fit flexible dieting perfectly—track the macros, hit your targets.

IIFYM considerations:

• Account for net carbs vs total carbs based on your preference
• Great for hitting fiber goals
• Good protein contribution without excess fat

Learn more in our Flexible Dieting Guide.

How to Cook Lentils

Basic Stovetop Method

Ratio: 1 cup dry lentils : 3 cups water

Steps:

1. Rinse lentils under cold water
2. Bring water to boil with lentils
3. Reduce heat, simmer uncovered
4. Cook until tender:
   • Red/orange: 15-20 minutes
   • Green/brown: 25-30 minutes
   • Black: 25-30 minutes

No soaking required (unlike most beans).

Instant Pot Method

• 1 cup dry lentils + 2.5 cups water
• Pressure cook: 8-12 minutes depending on type
• Natural release 10 minutes

Batch Cooking for Meal Prep

Cook 2-3 cups dry lentils at once:

• Yields 6-8 cups cooked
• Refrigerate up to 5 days
• Freeze up to 3 months

Lentil Meal Ideas

Quick Lentil Meals

Lentil soup (per serving):

• 1 cup cooked lentils: 230 cal, 18g protein
• Vegetables, broth, spices: ~50 cal
• Total: ~280 cal, 18g protein

Mediterranean lentil salad:

• 1 cup green lentils: 230 cal
• Cucumbers, tomatoes, red onion: 30 cal
• 2 tbsp feta: 50 cal
• 1 tbsp olive oil + lemon: 120 cal
• Total: 430 cal, 20g protein

Red lentil dal:

• 1 cup red lentils: 230 cal
• Coconut milk (1/4 cup): 115 cal
• Spices, ginger, garlic: ~10 cal
• Serve over rice (1/2 cup): 100 cal
• Total: 455 cal, 20g protein

Lentil Meal Prep Recipes

Lentil bolognese (4 servings):

• 2 cups cooked lentils
• 1 can crushed tomatoes
• Onion, garlic, Italian herbs
• Per serving over pasta: 450 cal, 18g protein

Stuffed peppers with lentils (4 servings):

• 2 cups cooked lentils
• 1 cup cooked rice
• 4 bell peppers
• Cheese topping (optional)
• Per pepper: 280 cal, 12g protein

Check out more ideas in our Macro-Friendly Meals guide.

Canned vs Dry Lentils

Macros Comparison (Per Cup)

Type	Calories	Protein	Carbs	Sodium
Dry (cooked)	230	18g	40g	4mg
Canned (drained)	230	18g	40g	480mg

Macros are identical. The difference is sodium—canned lentils have significant added salt.

When to Choose Each

Choose dry lentils when:

• Cost is a priority (cheaper)
• Controlling sodium matters
• Batch cooking for the week
• You want better texture

Choose canned lentils when:

• Time is limited (no cooking)
• Making a quick meal
• You have access to low-sodium versions
• Convenience trumps cost

Tip: Rinse canned lentils under water for 1 minute to reduce sodium by ~40%.

Common Lentil Questions

Do Lentils Cause Gas?

They can, especially when you first start eating them. Lentils contain oligosaccharides that ferment in the gut.

To reduce gas:

• Start with small portions (1/4-1/2 cup)
• Increase gradually over weeks
• Rinse thoroughly before cooking
• Cook with digestive spices (cumin, ginger, turmeric)
• Drain canned lentils well

Your gut adapts—most people experience less gas after 2-3 weeks of regular consumption.

Are Lentils a Complete Protein?

No. Lentils are low in methionine (an essential amino acid).

Solution: Combine with grains (rice, bread, quinoa) at some point during the day. You don’t need to eat them together at the same meal—just within the same day.

Do Lentils Lose Nutrients When Cooked?

Some vitamin C and B vitamins reduce with cooking, but protein, fiber, and minerals remain stable. Cooking also improves protein digestibility and reduces anti-nutrients.

The Bottom Line on Lentils Macros

The facts:

• One cup cooked lentils: 230 calories, 18g protein, 16g fiber
• Highest protein common legume
• Net carbs are 24g after subtracting fiber
• Low glycemic index—won’t spike blood sugar
• Extremely affordable protein source

Best uses:

• Plant-based diets as primary protein source
• Weight loss (high satiety for calories)
• Budget meal planning
• Adding fiber and nutrients to any diet
• Meat substitute in many recipes

Limitations:

• Not ideal for strict keto/very low carb
• Not a complete protein alone
• Can cause digestive adjustment initially
• Requires some cooking time (though less than beans)

The bottom line: Lentils are one of the most nutritionally efficient foods available—high protein, high fiber, low fat, low cost. If you’re not eating them, you’re missing out on an easy way to hit protein and fiber targets.

For understanding how lentils fit your overall nutrition picture, read What Are Macronutrients.