Most food decisions involve weighing taste against health, and the choice between mozzarella and American cheese is a classic example. Both are staples in the American kitchen, melting beautifully on pizzas, burgers, and sandwiches. However, beyond the taste and texture, their nutritional stories diverge significantly. One is a product of traditional cheesemaking, while the other is an industrial creation. Understanding these fundamental differences is key to determining which is the healthier option for you.
The Case for Mozzarella Cheese
Mozzarella cheese, particularly fresh mozzarella or low-moisture part-skim, consistently ranks higher in nutritional value due to its simpler composition. Originating in Italy, it is made by heating and stretching curds from cow's or buffalo's milk, a process that yields a soft, milky-tasting cheese.
Superior Nutritional Profile
- Lower Sodium: Mozzarella has a lower sodium content, a crucial factor for those monitoring their blood pressure or overall heart health.
- Lower Fat and Calories: Part-skim mozzarella, in particular, is an excellent choice for those watching their weight, providing satisfying flavor with fewer calories and less saturated fat.
- Rich in Calcium and Protein: As a natural dairy product, mozzarella is a great source of calcium for bone health and provides high-quality protein to support muscle growth and repair.
Natural and Less Processed
Unlike American cheese, fresh mozzarella is minimally processed. It contains only milk, salt, rennet, and a starter culture. This straightforward ingredient list means fewer additives, preservatives, and artificial components, aligning with a diet focused on whole foods. Some forms of mozzarella also contain probiotics, which are beneficial bacteria that can support gut health.
The Breakdown of American Cheese
American cheese is a highly processed product that, by definition from the U.S. Food and Drug Administration (FDA), is not 100% cheese. It is officially labeled as a "pasteurized process American cheese" or "cheese food," depending on its cheese content. This product is manufactured by blending various cheeses, such as cheddar and colby, with other dairy products and numerous additives.
Nutritional Disadvantages
- Higher Sodium Levels: Processed American cheese is notoriously high in sodium. The addition of salt and emulsifying agents during processing significantly increases its overall sodium content, which can be a concern for those with hypertension.
- Higher Saturated Fat: While calorie and fat content can be comparable to full-fat mozzarella, the saturated fat levels are often higher in American cheese due to the composition and processing.
- Contains Additives: Emulsifiers like sodium citrate and phosphates are added to achieve the smooth, meltable texture of American cheese slices. Other ingredients like milk proteins, whey, and artificial colorings are also common.
Mozzarella vs. American Cheese: A Nutritional Comparison
To put the differences into perspective, here is a comparison of key nutritional values per 1-ounce (28g) serving. Note that specific values can vary by brand and type (e.g., full-fat vs. part-skim).
| Nutritional Metric | Mozzarella (Whole Milk) | American Cheese (Processed) | 
|---|---|---|
| Calories | ~85 kcal | ~75 kcal | 
| Total Fat | ~6.3 g | ~6.3 g | 
| Saturated Fat | ~3.7 g | ~3.7 g | 
| Sodium | ~178 mg | ~342 mg | 
| Protein | ~6.3 g | ~3.7 g | 
| Processing Level | Minimal | High (Blended with additives) | 
*Note: Nutritional information for American cheese can vary widely depending on whether it is a "cheese product," "cheese food," or "process cheese." The values above reflect a typical processed slice.
The Verdict: Mozzarella Wins on Health
While the table shows similar calorie and fat content for whole-milk versions, the significantly higher sodium and protein differences are a key takeaway. When you compare low-moisture part-skim mozzarella to processed American cheese, the contrast is even more pronounced, with mozzarella being lower in fat and calories. The minimal processing and shorter, more natural ingredient list of mozzarella make it the superior choice for overall health. The high sodium and additive content of American cheese, along with its lower percentage of actual cheese, position it as the less healthy option for regular consumption.
Making Healthier Cheese Choices
Making informed decisions about cheese can have a positive impact on your overall diet. When stocking your fridge:
- Choose natural over processed: Opt for natural cheeses like mozzarella, Swiss, or cheddar over processed cheese slices and spreads. Look for the shortest, most recognizable ingredient list.
- Consider part-skim varieties: For a leaner option, go for part-skim or low-moisture mozzarella, which provides a good source of protein and calcium with less saturated fat.
- Read nutrition labels: Pay close attention to sodium content, especially if you have heart concerns. The difference between brands can be substantial.
- Enjoy in moderation: Both cheeses can be part of a balanced diet when consumed in small, mindful portions. Pairing cheese with fruits or vegetables can help you create a more nutritious snack.
Conclusion
In the debate over what is healthier, mozzarella or American cheese, the answer is clear: mozzarella takes the win. Its more natural form, lower sodium content, and often lower fat profile (especially part-skim) make it a nutritionally superior choice. While American cheese serves a purpose for its unmatched meltability, its status as a highly processed food with a high sodium and additive load makes it the less healthy option. For a more wholesome diet, embrace the natural goodness of mozzarella while saving American cheese for the occasional, nostalgic grilled cheese sandwich.
Learn more about different types of cheese and their nutritional information by visiting Healthline's guide on the healthiest cheeses: The 9 Healthiest Types of Cheese.