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How Much Protein is in 250g of Sweet Potatoes?

4 min read

According to USDA nutritional data, a large, baked sweet potato (around 250g) contains approximately 5 grams of protein. This amount positions the sweet potato as a modest, but not primary, source of protein in a balanced diet, alongside its many other health benefits.

Quick Summary

A 250g sweet potato provides a small amount of protein, ranging from 4 to 5 grams depending on the preparation. It is primarily known for its high carbohydrate, fiber, and vitamin A content.

Key Points

  • Protein per serving: A 250g baked sweet potato contains approximately 5 grams of protein.

  • Nutrient-Dense, Not Protein-Rich: Sweet potatoes are a poor source of protein but an excellent source of vitamin A, fiber, and potassium.

  • Cooking Method Matters: The protein content per weight can slightly increase when baked due to moisture loss.

  • Special Protein: A unique type of protein called sporamin makes up most of the sweet potato's protein content.

  • Pairing for Protein: To create a high-protein meal, sweet potatoes should be paired with other high-protein foods like legumes, meat, or nuts.

  • High in Vitamin A: Compared to regular potatoes, sweet potatoes contain significantly more vitamin A, an important antioxidant.

  • Digestive Health: The high fiber content in a 250g serving supports a healthy gut and aids in digestion.

In This Article

Protein in 250g of Sweet Potatoes

Determining the exact protein content in 250g of sweet potatoes depends on how it is prepared, as cooking methods can alter the final nutritional values. For instance, a 250g serving of a raw sweet potato contains about 4 grams of protein, based on USDA data. However, the same weight of sweet potato, once baked, typically contains around 5 grams of protein. This difference is largely attributed to the loss of water during the baking process, which concentrates the nutrients. While this might seem like a small amount, it's important to understand the role sweet potatoes play in a broader nutritional context.

Sweet potatoes are not considered a primary protein source. Instead, they are an excellent source of complex carbohydrates, dietary fiber, and a wide array of vitamins and minerals. The protein they do contain includes unique storage proteins known as sporamins, which account for more than 80% of their total protein content. Research suggests these proteins may possess antioxidant properties. However, those looking to build significant muscle mass or meet high protein goals will need to pair sweet potatoes with more protein-dense foods.

The Complete Nutritional Profile of a 250g Sweet Potato

A 250g portion offers much more than just a few grams of protein. Its rich nutritional composition contributes to overall health in several ways. For a large baked sweet potato (around 250g), here is a typical breakdown:

  • Calories: 225 kcal
  • Carbohydrates: 52g
  • Fiber: 8g
  • Sugar: 16g
  • Protein: 5g
  • Vitamin A: Over 267% of the Daily Value (DV)
  • Vitamin C: 54% of the DV
  • Potassium: 25% of the DV
  • Manganese: 54% of the DV
  • Vitamin B6: 55% of the DV

This robust profile highlights the sweet potato's value as a nutrient-dense food. Its high fiber content, in particular, promotes digestive health and can contribute to feelings of fullness.

Sweet Potato vs. Other Common Vegetables

When considering protein, it's helpful to see how sweet potatoes compare to other vegetables. The following table contrasts the protein content of a 250g serving of baked sweet potato with other common vegetable choices.

Vegetable (250g Serving) Protein (approx.) Primary Nutritional Highlight
Sweet Potato (Baked) 5g Vitamin A, Fiber
Regular Potato (Baked) 5.5g Potassium, Vitamin B6
Broccoli (Cooked) 7g Vitamin K, Vitamin C
Spinach (Cooked) 7.5g Iron, Vitamin K

As the table illustrates, while sweet potatoes offer a moderate amount of protein for a vegetable, they are outpaced by others like spinach and broccoli. This reinforces the idea that sweet potatoes are not a go-to source for protein but are still a valuable component of a healthy diet, especially for their high vitamin A content.

Boosting Your Protein Intake with Sweet Potatoes

Incorporating sweet potatoes into high-protein meals is a simple and effective strategy. The versatility of sweet potatoes allows them to pair well with a variety of protein sources. Here are some ideas:

  • Sweet Potato and Black Bean Burrito Bowl: Combine a baked and mashed sweet potato with seasoned black beans, corn, avocado, and a dollop of Greek yogurt for a fiber and protein-rich meal.
  • Stuffed Sweet Potatoes: Bake a sweet potato and then stuff it with a savory filling of ground turkey, chicken, or chickpeas. Top with shredded cheese or a dairy-free alternative for a complete meal.
  • Post-Workout Protein Bowl: Blend a cooked sweet potato into a smoothie with protein powder, milk, and nuts for a balanced post-workout snack that helps with muscle recovery.
  • Sweet Potato Hash with Eggs: Dice and sauté sweet potatoes with onions and peppers. Serve alongside scrambled or fried eggs for a hearty, protein-packed breakfast or brunch.

Additional Tips for Pairing Protein

  1. Legumes: Lentils, chickpeas, and beans are fantastic plant-based protein partners that complement the sweet potato's flavor profile. A lentil and sweet potato curry is a delicious and nutrient-dense option.
  2. Poultry and Fish: Shredded chicken or flaked fish can be easily mixed into a mashed sweet potato base or used as a stuffing to add lean protein.
  3. Seeds and Nuts: A sprinkle of pumpkin seeds, sunflower seeds, or a drizzle of nut butter can significantly increase the protein and healthy fat content of your sweet potato dish.

Conclusion

In summary, a 250g serving of sweet potato provides a modest amount of protein, typically 4-5 grams depending on preparation. While it is not a high-protein food, sweet potatoes are a nutritional powerhouse, offering abundant vitamins, minerals, and dietary fiber, especially vitamin A. They are a versatile and delicious component of a healthy diet, and their protein contribution can be easily amplified by pairing them with other protein-rich foods. For those seeking to increase their protein intake, sweet potatoes should be viewed as a complementary element rather than a primary source. Their overall health benefits, including supporting vision, immunity, and digestive health, make them a valuable addition to any balanced eating plan. For comprehensive sweet potato nutrition facts, check out resources like Healthline for more detailed information on their composition and benefits.

Frequently Asked Questions

A 250g serving of baked sweet potato contains approximately 5 grams of protein.

No, sweet potatoes are not considered a high-protein food. They are primarily a source of carbohydrates, fiber, and vitamins, with a relatively low protein count.

Yes, baking concentrates the nutrients. A 250g raw sweet potato has about 4g of protein, while a baked one of the same final weight has about 5g, due to water loss.

To increase the protein, pair sweet potatoes with complementary protein sources such as black beans, lentils, chicken, fish, or by topping it with nuts, seeds, or Greek yogurt.

A 250g baked sweet potato is rich in Vitamin A, potassium, dietary fiber, and Vitamin C, along with providing complex carbohydrates for energy.

No, sweet potatoes do not provide a complete profile of all essential amino acids on their own. They should be combined with other protein sources to form a complete protein.

Regular potatoes can sometimes contain slightly more protein per 100g, but sweet potatoes offer significantly more Vitamin A and different antioxidant benefits.

References

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Medical Disclaimer

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