For a soup to be considered truly high in protein, it needs to be built with a solid foundation of protein-rich ingredients. While a basic vegetable broth offers minimal protein, a well-crafted soup using lean meats, seafood, or legumes can be a complete and satisfying meal. The 'most' protein is subjective and depends on the specific recipe and portion size, but certain soups and ingredients are consistent protein powerhouses.
Leading the list: The highest-protein soups
When examining soups known for their protein content, recipes featuring substantial animal protein often top the charts. These include:
- White Chicken Chili: A recipe for this hearty chili, which often includes shredded chicken and white beans, can pack as much as 28 grams of protein per serving. Adding a garnish of Greek yogurt or shredded cheese can further enhance the protein count.
 - Portuguese Fish Stew: This seafood-rich dish, filled with various types of fish and shellfish like salmon or shrimp, can contain an impressive 41.6 grams of protein per serving in some versions. Fish and seafood are excellent sources of lean protein.
 - Minestrone with Meat and Chickpea Pasta: Traditional minestrone is often vegetarian, but adding lean ground meat (like turkey or beef) and using chickpea-based pasta can create a high-protein version, with one recipe offering 37 grams per serving.
 - Beef and Barley Soup: This classic is naturally high in protein due to the inclusion of lean beef chunks and fiber-rich barley, making it an extremely filling option.
 
The best plant-based protein soups
For those following a vegan or vegetarian diet, plant-based soups can still be exceptionally high in protein. The key is to incorporate legumes, tofu, and high-protein grains.
- Hearty Lentil Soup: Lentils are a nutritional powerhouse. A single serving of hearty lentil soup can provide up to 18 grams of plant-based protein and significant dietary fiber. Red, brown, and green lentils can all be used effectively.
 - Black Bean Soup: Black beans are another fantastic source of plant-based protein. One serving of black bean soup can contain around 11 to 15 grams of protein, and it's also rich in fiber.
 - Tofu and Vegetable Ramen: Adding firm tofu cubes to a vegetable or mushroom broth with vegetables and noodles creates a complete, high-protein meal. Tofu is a great source of protein and soaks up the flavors of the broth.
 
How to easily boost protein in any soup
To maximize the protein in any soup, consider adding these ingredients, either while cooking or as a topping:
- Cooked Meat: Add shredded rotisserie chicken, leftover cooked turkey, or browned ground beef.
 - Legumes: Stir in canned chickpeas, kidney beans, or lentils.
 - Dairy: Top with a dollop of Greek yogurt or cottage cheese.
 - Cheese: Sprinkle with shredded cheese like cheddar or Parmesan.
 - Eggs: Drop a beaten egg into a hot broth, like in an egg drop soup.
 - Nuts and Seeds: Garnish with toasted almonds, cashews, or pumpkin seeds for crunch and healthy fats.
 - Tofu: Add cubed or crumbled tofu to a broth-based soup.
 - Grains: Mix in cooked quinoa or wild rice, which offer both fiber and protein.
 - Bone Broth: Use bone broth as a base instead of a standard stock to add around 10 grams of protein per cup.
 
Comparing protein content of popular soups
This table illustrates how the protein content of soups can vary significantly based on key ingredients.
| Soup Type | Key Protein Source(s) | Estimated Protein Per Serving | Dietary Notes | 
|---|---|---|---|
| White Chicken Chili | Shredded chicken, white beans | ~28-35g | High animal and plant protein | 
| Hearty Lentil Soup | Lentils, other veggies | ~15-20g | High plant protein, high fiber | 
| Portuguese Fish Stew | Fish, shellfish | ~40g+ | High lean animal protein | 
| Basic Chicken Noodle | Chicken, broth, noodles | ~10-15g | Moderate animal protein | 
| Meatball & Tomato Soup | Meatballs, sometimes couscous | ~15-25g | Varies with meat type and quantity | 
| Black Bean Soup | Black beans, other veggies | ~11-15g | High plant protein, high fiber | 
| Creamy Broccoli & Cheese | Cheese, dairy | ~10-15g | Moderate protein, varies with cheese content | 
Conclusion: Choosing the best protein soup for you
While a hearty fish stew or white chicken chili may offer the highest raw numbers, the best high-protein soup is ultimately the one that aligns with your dietary needs and preferences. For a vegan option, a properly loaded lentil or black bean soup is a phenomenal choice. For omnivores, incorporating lean meats like chicken or beef and fortifying the soup with legumes, grains, and dairy or cheese provides a quick and satisfying meal. The protein content of any soup is customizable, so you can easily modify your favorite recipes with additional ingredients to meet your personal nutritional goals. By focusing on quality protein sources, you can turn a simple soup into a substantial, filling, and nourishing meal.
For more recipes and inspiration, check out this guide on High-Protein Soups from Everyday Health.