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How many calories are in 125g of firm tofu?

3 min read

According to nutritional data, 125g of firm tofu contains approximately 88 calories, though this can vary depending on the brand and preparation. This low-calorie density, combined with a robust nutritional profile, makes firm tofu a highly versatile and valuable addition to many diets. It's a complete source of plant-based protein, offering a healthy alternative to animal-derived meats.

Quick Summary

A 125g serving of firm tofu typically provides about 88 calories, along with a significant amount of protein, healthy fats, and essential minerals. The exact nutritional content can differ by manufacturer and firmness.

Key Points

  • Core Calorie Count: A 125g serving of firm tofu contains approximately 88 calories.

  • High in Protein: This serving size provides about 10g of complete plant-based protein.

  • Water Content Matters: Calorie density is higher in firmer tofu because more water has been pressed out during production.

  • Cooking Adds Calories: The calorie count can increase significantly with high-oil cooking methods like deep-frying.

  • Rich in Minerals: Tofu is a good source of calcium, iron, and other essential minerals, especially when prepared with calcium sulfate.

  • Heart-Healthy Fats: The fat content is mostly from heart-healthy polyunsaturated fats, with minimal saturated fat.

  • Complete Protein Source: Tofu contains all nine essential amino acids, making it an excellent meat substitute.

In This Article

Understanding the Calorie Count of 125g of Firm Tofu

The number of calories in a 125g portion of firm tofu is an important detail for anyone tracking their nutritional intake. The precise calorie value can vary slightly between manufacturers and depending on how it's prepared, but a standard reference point is approximately 88 calories for 125 grams. This relatively low-calorie figure is just one part of the nutritional story. Tofu is celebrated not only for being low in calories but also for its high protein content and healthy fats, making it a staple for vegan, vegetarian, and health-conscious eaters.

The Full Nutritional Breakdown

Beyond just calories, a 125g serving of firm tofu offers a wealth of other nutrients. A standard serving contains a notable amount of complete protein, healthy fats, and important minerals. Here's a closer look at what you can expect in a typical 125g portion:

  • Protein: Around 10g of protein, providing a complete amino acid profile.
  • Fat: Approximately 5g of total fat, with the majority being heart-healthy polyunsaturated and monounsaturated fats.
  • Carbohydrates: A very low carbohydrate content of about 2g, with some of that coming from fiber.
  • Minerals: A fantastic source of calcium, iron, and manganese, especially when prepared with calcium sulfate.

Why Tofu Firmness Affects Calorie Density

The water content is the primary factor influencing tofu's calorie density. The more water that is pressed out during the manufacturing process, the higher the concentration of nutrients per gram, including protein and fat. This is why a firm or extra-firm block of tofu has more calories and protein per gram than a softer, more delicate version. Soft or silken tofu, which is not heavily pressed, retains more water, making it lower in calories but also less nutrient-dense per serving.

Tofu Comparison Table: Firm vs. Other Varieties (per 100g)

To better understand the differences, here is a comparison of the approximate nutritional values for different types of tofu based on a 100g serving size. Keep in mind that specific values can differ by brand.

Nutrient (per 100g) Firm Tofu (approx.) Silken Tofu (approx.) Extra-Firm Tofu (approx.)
Calories 70 kcal 62 kcal 94 kcal
Protein 8-10g 5-7g 12-15g
Fat 4-5g 3-4g 6-8g
Carbohydrates 2g 3g 3g

How Cooking Methods Impact Calorie Count

While the base calorie count for 125g of raw firm tofu is relatively low, how you prepare it can significantly affect the final caloric value. Adding oil for frying or marinating with sugary sauces can increase the total. For a healthier option, consider baking or air-frying with a light spray of oil to achieve a crispy texture without excess calories. Tofu's ability to absorb flavors means it can be seasoned with low-calorie spices, herbs, or tamari for a flavor boost without adding many calories.

Health Benefits of Incorporating Tofu

Adding firm tofu to your diet comes with a range of health benefits:

  • Excellent Source of Plant-Based Protein: As a complete protein, it's an ideal meat alternative for those on vegetarian or vegan diets.
  • Rich in Minerals: Tofu prepared with calcium sulfate is packed with bone-supporting minerals like calcium and iron.
  • Heart-Healthy Fats: The fats in tofu are primarily polyunsaturated, which can help support heart health.
  • Low in Saturated Fat and Cholesterol-Free: A great choice for those looking to reduce saturated fat intake and follow a cholesterol-free diet.
  • Versatile Ingredient: The mild flavor profile allows it to be used in a wide variety of dishes, from stir-fries to salads to scrambles.

Conclusion

In summary, 125g of firm tofu is a nutrient-dense and low-calorie food, providing about 88 calories and a healthy dose of protein, minerals, and good fats. The versatility of tofu allows it to be a cornerstone of many healthy diets. Its nutritional profile, combined with the fact that it contains all nine essential amino acids, makes it a powerful meat-free protein source. By being mindful of preparation methods, you can enjoy all the benefits of firm tofu while keeping your calorie intake in check. For more general nutrition information on plant-based diets, check out the recommendations from the Dietary Guidelines for Americans.

Frequently Asked Questions

The primary factor causing calorie variation in tofu is its water content. The firmer the tofu, the more water has been pressed out, resulting in a higher concentration of nutrients and calories per gram compared to softer varieties.

Yes, firm tofu is an excellent source of protein for vegans. It contains all nine essential amino acids, making it a complete protein similar to animal-derived sources.

To keep the calories low, cook firm tofu using methods that require minimal oil. Baking, air-frying, or pan-frying with a non-stick pan and a light oil spray are great options. Seasoning with low-calorie herbs and spices is also recommended.

Yes, different brands of tofu can have slightly different calorie counts and nutritional profiles depending on their specific manufacturing process and coagulant used. It's always best to check the nutritional label.

Yes, firm tofu can be suitable for a weight-loss diet. It is low in calories, high in satiating protein, and can be prepared in healthy ways, helping you feel full longer.

Extra-firm tofu has more protein per 100g than firm tofu because it contains less water. While firm tofu has around 8-10g of protein per 100g, extra-firm can contain 12-15g for the same amount.

No, tofu is a plant-based food and is naturally cholesterol-free. This makes it a great heart-healthy protein choice.

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Medical Disclaimer

This content is for informational purposes only and should not replace professional medical advice.