Sweet Potato vs Lentils: Nutrition Comparison
Which is healthier? Compare calories, protein, carbs, and more
Complete side-by-side nutrition comparison per 100g serving | Updated 2026
Which is Healthier?
Lentils is generally healthier
Lentils comes out ahead in this comparison, winning in 4 out of 5 key nutritional categories. It has more protein (9g vs 1.6g), more fiber (7.9g vs 3g), less sugar (1.8g vs 4.2g), less sodium (2mg vs 55mg)making it the better choice for most health goals.
Quick Summary
Fewer Calories
Sweet Potato
86 kcal
More Protein
Lentils
9g
More Fiber
Lentils
7.9g
Less Sugar
Lentils
1.8g
Visual Comparison
Side-by-Side Nutrition Table
| Nutrient | Sweet Potato | Lentils | Difference |
|---|---|---|---|
| Calories | 86kcal✓ | 116kcal | -30.0kcal |
| Protein | 1.6g | 9g✓ | -7.4g |
| Carbohydrates | 20g | 20g | 0.0g |
| Fat | 0.1g✓ | 0.4g | -0.3g |
| Fiber | 3g | 7.9g✓ | -4.9g |
| Sugar | 4.2g | 1.8g✓ | +2.4g |
| Sodium | 55mg | 2mg✓ | +53.0mg |
Serving Size Comparison
All values above are per 100g. Here's how they compare in common serving sizes:
Sweet Potato
Lentils
Diet Compatibility
Sweet Potato
Lentils
When to Choose Sweet Potato
- ✓Lower in calories (86 vs 116)
- ✓Lower in carbs (20g vs 20g)
Common Uses
When to Choose Lentils
- ✓Higher in protein (9g vs 1.6g)
- ✓More fiber (7.9g vs 3g)
- ✓Less sugar (1.8g vs 4.2g)
- ✓Lower sodium (2mg vs 55mg)
Common Uses
Sweet Potato vs Lentils: Nutritional Analysis
Lentils is more calorie-dense at 116 calories per 100g compared to 86 for Sweet Potato, a difference of 30 calories. On the protein front, Lentils delivers more with 9g per 100g versus 1.6g, which matters for muscle maintenance, satiety, and overall metabolic health. These differences become meaningful when you consider how each food fits into your daily dietary pattern rather than looking at any single nutrient in isolation.
Macronutrient Breakdown
The macronutrient profiles of Sweet Potato and Lentils tell different nutritional stories. Sweet Potato provides 20g of carbohydrates, 0.1g of fat, and 3g of fiber per 100g, while Lentils contains 20g carbs, 0.4g fat, and 7.9g fiber. The higher fiber content in Lentils supports digestive health, helps regulate blood sugar after meals, and contributes to longer-lasting satiety. Sugar content also differs: Sweet Potato contains 4.2g while Lentils has 1.8g per 100g. Lower sugar options are generally preferable for blood sugar management and dental health.
Key Takeaways
- For weight management: Sweet Potato is the lower-calorie choice at 86 cal/100g, making it more suitable for calorie-controlled diets.
- For muscle building: Lentils provides more protein (9g/100g), supporting muscle repair and growth.
- For sustained energy: Lentils offers more fiber (7.9g/100g), which slows digestion and provides steadier energy release.
- Overall: Neither food is universally "better" than the other. The right choice depends on your specific nutritional goals, meal context, and dietary preferences. Both can play a role in a balanced diet.
Frequently Asked Questions
Which has more calories, Sweet Potato or Lentils?
Lentils has more calories with 116 kcal per 100g, compared to Sweet Potato with 86 kcal. That's a difference of 30 calories per 100g serving.
Is Sweet Potato healthier than Lentils?
Based on our nutritional analysis, Lentils is generally the healthier choice, winning in 4 out of 5 key nutritional categories. Lentils has 116 calories, 9g protein, and 7.9g fiber per 100g. However, the best choice depends on your specific dietary goals.
What is the protein difference between Sweet Potato and Lentils?
Lentils has more protein with 9g per 100g, compared to Sweet Potato with 1.6g. Lentils provides 7.4g more protein per 100g serving.
Which is better for weight loss, Sweet Potato or Lentils?
For weight loss, Sweet Potato is the better choice with only 86 calories per 100g compared to 116 calories in Lentils. Lentils also offers 7.9g of fiber per 100g, which helps you feel fuller longer.
Does Sweet Potato or Lentils have fewer carbs?
Sweet Potato and Lentils have the same carbohydrate content at 20g per 100g.
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About Our Data
All nutrition data in this comparison is sourced from the USDA FoodData Central, the official food composition database maintained by the U.S. Department of Agriculture. Values are based on 100g servings for accurate comparison.
Health Disclaimer: This comparison is for informational purposes only and is not intended as medical or dietary advice. Nutritional needs vary by individual. The best food choice depends on your personal health goals, dietary requirements, and preferences. Consult a healthcare provider or registered dietitian for personalized nutrition guidance.