adminLast updated: 2026-04-17 – Rewritten from the 2018 original with verified USDA nutrition data, a part-skim vs whole milk comparison, and a fresh mozzarella section.
Quick Answer: Yes, mozzarella is one of the healthier cheeses when eaten in reasonable amounts. One ounce delivers about 7 grams of protein, 150 milligrams of calcium, and 85 calories, with roughly half the sodium of feta or parmesan. Part-skim cuts saturated fat further, and fresh mozzarella made from whole milk has the cleanest ingredient list.
Slice a ball of fresh mozzarella on the counter and the question answers itself a little. Milky, soft, barely salted. Nothing like the shrink-wrapped bricks most people picture when they ask if cheese is good for them. We sell a lot of it at the deli, and we get the healthy-or-not question almost weekly, usually from customers staring at a sandwich menu trying to do the math in their head.
So here is the honest breakdown. Mozzarella is higher in protein than most cheeses, lower in sodium than almost all of them, and built around calcium and calcium-bound phosphorus that your bones need. It is still cheese, which means saturated fat and calories, so portion matters. None of this means you should eat a pound of it, but it also means mozzarella is not the villain some diet content makes it out to be.
In this post, we cover the per-ounce nutrition numbers, the real health benefits, the whole-milk vs part-skim question, how fresh mozzarella differs from the low-moisture version, and who should be careful.
In This Post
- Mozzarella Nutrition Facts (Per Ounce)
- Does Mozzarella Have Protein?
- Is Mozzarella Cheese Good for You?
- Whole Milk vs Part-Skim: Which Is Healthier?
- Is Fresh Mozzarella Healthy?
- When to Watch Your Mozzarella Intake
- Mozzarella Nutrition FAQ
- Try Our Fresh Mozzarella in the North End
Mozzarella Nutrition Facts (Per Ounce)
One ounce of whole-milk mozzarella (about 28 grams, roughly the size of a standard string cheese) gives you around 85 calories, 7 grams of protein, 6 grams of fat, and 150 milligrams of calcium, with about 175 milligrams of sodium. Part-skim versions shave off calories and saturated fat without losing much protein.
The numbers below come from the USDA FoodData Central database. Values vary slightly by brand and moisture level, so check the label on whatever you buy.
| Nutrient | Whole Milk | Part-Skim |
|---|---|---|
| Calories | 85 | 72 |
| Protein | 6.3 g | 6.9 g |
| Total Fat | 6.3 g | 4.5 g |
| Saturated Fat | 3.7 g | 2.9 g |
| Carbs | 0.6 g | 0.8 g |
| Calcium | 143 mg | 222 mg |
| Sodium | 175 mg | 175 mg |
A few things jump out. Mozzarella is almost carb-free, which matters if you watch blood sugar. The calcium punches above its weight, covering roughly 15 to 22 percent of a day’s recommended intake from a single serving. And that sodium number is the reason nutritionists tend to rank mozzarella above feta, parmesan, and most hard cheeses when sorting by heart-healthiness.
Does Mozzarella Have Protein?
Yes. Mozzarella has roughly 6 to 7 grams of protein per ounce, which puts it in the same neighborhood as two large eggs per serving. Part-skim is slightly higher because removing the fat concentrates the protein by weight.
That protein is complete, meaning it contains all nine essential amino acids your body cannot make on its own. It is also dairy protein, which is largely casein, the slow-digesting kind that keeps you full longer. That is why a sandwich with real mozzarella keeps you going past lunch while a handful of crackers doesn’t.
For context: 100 grams (about 3.5 ounces) of whole-milk mozzarella gives you roughly 22 grams of protein. That is a meaningful chunk of the 50 to 70 grams most adults aim for daily.
Is Mozzarella Cheese Good for You?
Mozzarella offers real nutritional value when it replaces empty-calorie foods instead of adding to them. The main wins come from calcium, protein, and a better fat and sodium profile than most aged cheeses.
Bone and Teeth Support
The calcium-phosphorus pair in mozzarella is what bones are literally built out of. An ounce covers 15 to 22 percent of the daily calcium target. Phosphorus, often overlooked, handles the other half of the bone-density equation and helps regulate calcium absorption. Pair mozzarella with something containing vitamin D (like sun exposure or fortified dairy) to round it out.
Muscle Maintenance and Satiety
Seven grams of complete protein per ounce is not trivial. Casein, the dominant dairy protein, digests slowly and steadies hunger between meals. Studies on dairy protein consistently show better satiety compared with equivalent carb calories, which is why cheese shows up on most Mediterranean and protein-forward diets.
Gut-Friendly Bacteria (Sometimes)
Traditional mozzarella, especially fresh versions aged briefly in brine, contains live lactic acid bacteria. These are the same strains found in yogurt and kefir, and they may contribute to a healthier gut microbiome. Heavily processed, vacuum-sealed shredded mozzarella is pasteurized to the point where most of this benefit is gone, so it is the fresh and artisan versions where this matters.
Lower Sodium Than Most Cheeses
At 175 mg per ounce, mozzarella has roughly 50 percent less sodium than feta, parmesan, or aged cheddar. For anyone managing blood pressure, that swap adds up fast across a week.
Vitamin A and B12
A single ounce delivers about 5 percent of daily vitamin A and a meaningful hit of B12, which plays into nerve function and red blood cell production. Whole-milk versions hold onto more of these fat-soluble vitamins than skim versions do.
Whole Milk vs Part-Skim: Which Is Healthier?
Part-skim has about 15 percent fewer calories and 22 percent less saturated fat per ounce than whole milk, which makes it the default pick if you are watching either. Whole milk holds onto more flavor, more fat-soluble vitamins, and tends to melt into silkier pulls. The “healthier” version depends on the rest of your day.
If you already eat plenty of plant fat (olive oil, avocados, nuts) and want to keep cheese as a small flavor hit, whole-milk mozzarella on a sandwich won’t wreck anything. If cheese shows up daily and you are watching heart numbers, part-skim is the safer default. Neither version is unhealthy in normal portions.
One note that surprises people: part-skim is actually higher in calcium by weight, because the water and fat content is lower so the minerals are more concentrated per gram.
Is Fresh Mozzarella Healthy?
Fresh mozzarella is at least as healthy as low-moisture mozzarella, and the ingredient list is usually cleaner. A good fresh mozz has four ingredients total: milk, salt, rennet, and citric acid or starter culture. Many low-moisture shredded versions add anti-caking agents like cellulose to stop clumping. Neither is dangerous, but the fresh version is closer to the traditional Italian product.
Because fresh mozzarella holds more water, a 1-ounce serving is actually less concentrated per bite. That means you get slightly fewer calories and less sodium per unit of volume, even though the per-gram nutrition is similar. This is also why fresh mozzarella tastes milder and lighter on a sandwich.
If you’ve never tried buffalo mozzarella (mozzarella di bufala), that is the traditional Italian version made from water buffalo milk rather than cow. It is richer, slightly tangier, and higher in fat, but also higher in protein and minerals per gram. Worth trying at least once.
Pro Tip: If you buy fresh mozzarella and don’t finish the ball, store it in the original brine or salt water in the fridge and use it within three to five days. Dry storage hardens the outside within a day. We wrote a full guide to storing fresh mozzarella if you want the details.
When to Watch Your Mozzarella Intake
Mozzarella is a solid food for most adults in 1 to 2 ounce servings. It becomes a problem only at higher volumes or if you have specific conditions. Here is when to pay closer attention.
- Lactose sensitivity: Mozzarella has less lactose than milk or soft cheeses like ricotta, but it still contains some. If you are fully lactose intolerant, try lactose-free mozzarella or stick to aged cheeses.
- Sodium-restricted diets: 175 mg per ounce is lower than most cheeses but still real. If your doctor flagged sodium, count it.
- Cholesterol concerns: Whole-milk mozzarella has about 22 mg of cholesterol per ounce. Part-skim drops that. Current research has moved away from treating dietary cholesterol as the main driver of blood cholesterol, but if you have been told to limit it, it matters.
- Weight goals: Calories in cheese add up faster than most people expect. A generous sandwich portion can hit 200 calories in mozzarella alone before anything else.
- Dairy allergies: An actual milk protein allergy is different from lactose intolerance. If you have it, avoid.
For most healthy adults, nutrition experts suggest 1 to 1.5 ounces of cheese per day as a reasonable ceiling. That leaves room for a caprese salad at lunch or a good sandwich at the deli without overdoing it.
Mozzarella Nutrition FAQ
Is mozzarella healthier than cheddar?
For most people watching sodium, saturated fat, or calories, yes. Mozzarella has roughly half the sodium of cheddar per ounce, a few fewer calories, and slightly less saturated fat. Cheddar has more fat-soluble vitamins and a stronger flavor, so you might use less of it. Both are fine in moderation.
Is fresh mozzarella low in calories?
Fresh mozzarella runs about 70 to 90 calories per ounce, roughly the same as or slightly less than low-moisture versions. The higher water content makes it feel lighter per bite even though the calorie density per gram is similar.
Can I eat mozzarella on a diet?
Yes. Mozzarella fits most Mediterranean, keto, and general weight-management diets in 1 to 2 ounce servings. The protein and calcium help with satiety, and it is low in carbs. Portion control is the whole game.
Is mozzarella good for weight loss?
It can be, when it replaces lower-protein snack foods like crackers, chips, or processed granola bars. The protein and fat combination fills you up longer than most carb-based snacks. Just watch portion sizes because cheese calories climb quickly.
How much mozzarella is too much?
For most adults, more than 2 to 3 ounces daily starts adding significant saturated fat and sodium. That is roughly two string cheese sticks or a large sandwich portion. If cheese is a daily staple, factor the calories into the rest of your day.
Try Our Fresh Mozzarella in the North End
If you want to taste the difference between grocery-store shredded and the real thing, come by the deli. We cut fresh mozzarella for our sandwiches the same way we have for years, and you can pick up a ball to take home along with imported olive oil and a loaf from the Bricco Panetteria next door.
Bricco Salumeria & Pasta Shop
11 Board Alley (behind 241 Hanover Street), Boston, MA 02113
(617) 248-9629
