Written by CalorieData Nutrition TeamReviewed by a Registered DietitianLast Updated: March 2026

Soy Milk vs Rice Milk: 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?

Soy Milk is generally healthier

Soy Milk comes out ahead in this comparison, winning in 5 out of 5 key nutritional categories. It has fewer calories (33 vs 47), more protein (3.3g vs 0.7g), more fiber (0.5g vs 0g), less sugar (0.7g vs 7.2g), less sodium (28mg vs 63mg)making it the better choice for most health goals.

Quick Summary

Fewer Calories

Soy Milk

33 kcal

More Protein

Soy Milk

3.3g

More Fiber

Soy Milk

0.5g

Less Sugar

Soy Milk

0.7g

Visual Comparison

Caloriesper 100g
Soy Milk
33
Rice Milk
47
Proteinper 100g
Soy Milk
3.3g
Rice Milk
0.7g
Carbohydratesper 100g
Soy Milk
1.5g
Rice Milk
10g
Fatper 100g
Soy Milk
1.6g
Rice Milk
0.9g

Side-by-Side Nutrition Table

NutrientSoy MilkRice MilkDifference
Calories33kcal47kcal-14.0kcal
Protein3.3g0.7g+2.6g
Carbohydrates1.5g10g-8.5g
Fat1.6g0.9g+0.7g
Fiber0.5g0g+0.5g
Sugar0.7g7.2g-6.5g
Sodium28mg63mg-35.0mg

Serving Size Comparison

All values above are per 100g. Here's how they compare in common serving sizes:

Soy Milk

Per 100g:33 calories
Per cup (150g):50 calories
Per serving (85g):28 calories

Rice Milk

Per 100g:47 calories
Per cup (150g):71 calories
Per serving (85g):40 calories

Diet Compatibility

Soy Milk

Low-CarbLow-CalorieVeganVegetarianLow-Sodium

Rice Milk

Low-CarbLow-CalorieVeganVegetarianLow-Sodium

When to Choose Soy Milk

  • Lower in calories (33 vs 47)
  • Higher in protein (3.3g vs 0.7g)
  • More fiber (0.5g vs 0g)
  • Lower in carbs (1.5g vs 10g)
  • Less sugar (0.7g vs 7.2g)
  • Lower sodium (28mg vs 63mg)

Common Uses

HydrationMorning ritualSocial occasionsEnergy boost
View full Soy Milk nutrition →

When to Choose Rice Milk

    Common Uses

    HydrationMorning ritualSocial occasionsEnergy boost
    View full Rice Milk nutrition →

    Soy Milk vs Rice Milk: Nutritional Analysis

    Rice Milk is more calorie-dense at 47 calories per 100g compared to 33 for Soy Milk, a difference of 14 calories. On the protein front, Soy Milk delivers more with 3.3g per 100g versus 0.7g, 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 Soy Milk and Rice Milk tell different nutritional stories. Soy Milk provides 1.5g of carbohydrates, 1.6g of fat, and 0.5g of fiber per 100g, while Rice Milk contains 10g carbs, 0.9g fat, and 0g fiber. The higher fiber content in Soy Milk supports digestive health, helps regulate blood sugar after meals, and contributes to longer-lasting satiety. Sugar content also differs: Soy Milk contains 0.7g while Rice Milk has 7.2g per 100g. Lower sugar options are generally preferable for blood sugar management and dental health.

    Key Takeaways

    • For weight management: Soy Milk is the lower-calorie choice at 33 cal/100g, making it more suitable for calorie-controlled diets.
    • For muscle building: Soy Milk provides more protein (3.3g/100g), supporting muscle repair and growth.
    • For sustained energy: Soy Milk offers more fiber (0.5g/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, Soy Milk or Rice Milk?

    Rice Milk has more calories with 47 kcal per 100g, compared to Soy Milk with 33 kcal. That's a difference of 14 calories per 100g serving.

    Is Soy Milk healthier than Rice Milk?

    Based on our nutritional analysis, Soy Milk is generally the healthier choice, winning in 5 out of 5 key nutritional categories. Soy Milk has 33 calories, 3.3g protein, and 0.5g fiber per 100g. However, the best choice depends on your specific dietary goals.

    What is the protein difference between Soy Milk and Rice Milk?

    Soy Milk has more protein with 3.3g per 100g, compared to Rice Milk with 0.7g. Soy Milk provides 2.6g more protein per 100g serving.

    Which is better for weight loss, Soy Milk or Rice Milk?

    For weight loss, Soy Milk is the better choice with only 33 calories per 100g compared to 47 calories in Rice Milk. Soy Milk also offers 0.5g of fiber per 100g, which helps you feel fuller longer.

    Does Soy Milk or Rice Milk have fewer carbs?

    Soy Milk has fewer carbs with 1.5g per 100g, compared to Rice Milk with 10g. If you're following a low-carb diet, Soy Milk is the better option with 8.5g fewer carbohydrates.

    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.