Mozzarella may not be the first food you think of when it comes to iron, but it does contribute a small amount to your daily intake. This Mozzarella Iron Calculator estimates the iron in your serving based on the type of mozzarella and the amount you plan to eat. Choose from fresh water-packed mozzarella, low-moisture whole milk, or low-moisture part-skim, then enter the weight in grams, ounces, cups, or slices.
Whether you are tracking micronutrients, planning a higher-iron diet, or simply comparing cheeses, this tool gives you immediate milligram totals plus the percentage of your daily target. Iron from dairy is not as well absorbed as iron from meat, but knowing the amounts helps you build a balanced plate.
Mozzarella Iron Calculator
How to Use This Tool
Start by selecting the mozzarella type that matches what you are eating. The calculator uses four common forms: fresh whole-milk, fresh part-skim, low-moisture whole-milk, and low-moisture part-skim mozzarella. Iron values differ slightly because moisture and milk fat affect mineral concentration. Next, enter the amount in grams, or switch to ounces, shredded cups, or slices. You can also tap a quick-serving button to load a common portion.
Press Calculate Iron to see the total iron in milligrams, the percentage of your daily target, and how many grams of that mozzarella would be needed to reach the full daily target. A short breakdown shows the conversion and arithmetic.
The Daily Value used on U.S. Nutrition Facts labels for iron is 18 mg for adults. Individual needs vary: most adult men need about 8 mg per day, while premenopausal women often need about 18 mg per day. The calculator’s target field lets you adjust this number.
Iron in Mozzarella: What the Numbers Mean
Mozzarella is a moist, fresh cheese, so minerals are more diluted than in aged hard cheeses. A 100 g serving of low-moisture part-skim mozzarella provides roughly 0.44 mg of iron; whole-milk mozzarella provides about 0.34 mg per 100 g. A standard 28 g (1 oz) serving supplies only 0.09–0.12 mg, less than 1% of the Daily Value.
Dairy iron is non-heme iron, the same form found in plants. Its absorption is affected by other foods: vitamin C, meat, fish, and poultry enhance it, while calcium, phytates, and tannins can reduce it. Even though mozzarella’s iron contribution is modest, it can still be part of a balanced meal, especially when paired with spinach, beans, or lentils. Values are based on U.S. Department of Agriculture data compiled in USDA FoodData Central.
Worked Examples
Example 1: Two ounces of low-moisture part-skim mozzarella. 2 oz = 56.7 g. Iron = 56.7 × 0.44 ÷ 100 = 0.25 mg, which is 1.4% of an 18 mg target.
Example 2: Half a cup of shredded fresh whole-milk mozzarella. A half-cup weighs about 56 g. Iron = 56 × 0.32 ÷ 100 = 0.18 mg. The same volume of low-moisture part-skim gives about 0.25 mg — a small practical difference.
Comparing cheeses: Cheddar contains roughly 0.34 mg of iron per 100 g, similar to whole-milk mozzarella. You can compare exact portions with the Cheddar Iron Calculator.
Reference Table: Iron by Mozzarella Type
| Type | Iron per 100 g | Iron per 28 g (1 oz) | % DV per 100 g |
|---|---|---|---|
| Fresh whole-milk, water-packed | 0.32 mg | 0.09 mg | 1.8% |
| Fresh part-skim, water-packed | 0.30 mg | 0.08 mg | 1.7% |
| Low-moisture whole-milk | 0.34 mg | 0.10 mg | 1.9% |
| Low-moisture part-skim | 0.44 mg | 0.12 mg | 2.4% |
Percentages use the 18 mg Daily Value. Values are representative averages; exact content depends on brand, moisture, and production method.
Tips & Best Practices
- Weigh mozzarella once with a kitchen scale; shredded cheese is often packed so that 1 cup weighs about 112 g, but scales are more reliable than cups.
- Pair mozzarella with vitamin C-rich foods such as tomato sauce or bell peppers to improve absorption of its non-heme iron.
- Keep contributions in perspective: even 100 g of mozzarella covers under 3% of the iron Daily Value. Use it as a complement to lentils, lean meat, or fortified cereals.
Frequently Asked Questions
Is mozzarella a good source of iron?
No, mozzarella is low in iron. Most varieties provide about 0.30–0.44 mg per 100 g, covering 1.7–2.4% of the Daily Value per 100 g. It contributes to intake but should not be the main iron source in a meal.
Why do different mozzarella iron values appear in nutrition databases?
Moisture content is the main reason. Low-moisture mozzarella has less water, so minerals are more concentrated by weight. Fresh water-packed mozzarella contains more water and naturally lower iron per 100 g. Brand and milk production also cause small differences.
Can I use mozzarella in a high-iron meal plan?
Yes, but as an addition rather than a primary source. Fifty-six grams of low-moisture part-skim mozzarella gives about 0.25 mg of iron. Combined with a cup of cooked lentils (about 6.6 mg) or fortified oatmeal, it fits easily. For a plant-based high-iron cheese alternative, see the tempeh iron calculator.