Several types of cheese can fit into a heart-healthy diet, with fresh and lower-fat varieties like mozzarella, feta, goat cheese, Swiss, and cottage cheese among the best options. The good news for cheese lovers: a 2023 review pooling dozens of observational studies found that eating about 1.5 ounces of cheese per day was linked to a lower risk of heart disease, stroke, and cardiovascular death. The key is choosing the right varieties and watching your portions.
Why Cheese Isn’t the Villain It Used to Be
For years, dietary advice lumped cheese in with butter and red meat as a source of artery-clogging saturated fat. The American Heart Association still recommends choosing low-fat or fat-free dairy when possible and keeping saturated fat below 10% of daily calories. But the picture has gotten more nuanced.
The most recent evidence, published in The American Journal of Clinical Nutrition, found that consumption of milk, yogurt, and cheese is neutrally associated with cardiovascular disease risk regardless of fat content. No randomized controlled trials have shown that full-fat versions of these foods produce different effects on heart risk factors compared to low-fat versions. That’s a significant shift from older guidance, and it means you don’t necessarily need to limit yourself to fat-free options.
One reason cheese behaves differently than butter in the body comes down to what scientists call the “dairy matrix.” Cheese isn’t just fat. It’s a complex structure of protein, fat, calcium, and other nutrients bound together. In a randomized controlled trial of 197 adults, participants who ate 120 grams of cheese daily for six weeks had lower total and LDL (“bad”) cholesterol compared to participants who ate the same amount of fat, protein, and calcium from butter and supplements. Something about the intact structure of cheese changes how the body processes its saturated fat.
The Best Cheese Choices for Your Heart
Not all cheeses are created equal. The two things to watch are fat content and sodium, both of which vary dramatically from one variety to the next. Here’s how popular cheeses compare per one-ounce serving:
- Cottage cheese (1% milkfat): 1 gram of fat, but 459 mg sodium. Great on fat, tough on sodium.
- Feta: 6 grams of fat, 260 mg sodium. A solid middle-ground option.
- Soft goat cheese: 6 grams of fat, 130 mg sodium. One of the best all-around picks.
- Mozzarella (whole milk): 6 grams of fat, 178 mg sodium. Fresh mozzarella is even lower in density since it holds more water.
- Swiss: 9 grams of fat, but only 53 mg sodium. By far the lowest-sodium option among common cheeses.
- Cheddar: 9 grams of fat, 185 mg sodium.
- American (processed): 9 grams of fat, 468 mg sodium. One of the worst options on both counts.
Fresh, young cheeses tend to be lower in fat and calories than aged varieties because they contain more moisture and less concentrated solids. That’s why mozzarella, ricotta, goat cheese, and feta consistently rank among the most heart-friendly picks. The AHA defines a low-fat cheese as one with no more than 3 grams of fat per ounce and no more than 1 gram of saturated fat per ounce, which is a strict standard that mainly cottage cheese and specially labeled low-fat products meet.
Sodium: The Hidden Problem
Saturated fat gets all the attention, but sodium is the sneakier concern with cheese. High sodium intake raises blood pressure, which is a direct driver of heart disease and stroke. Some cheeses pack more sodium into a single ounce than you’d expect. American cheese has 468 mg per ounce, and Parmesan has 390 mg. That’s roughly a fifth to a third of the daily 1,500 mg limit many cardiologists recommend for people with high blood pressure.
Cheeses naturally low in sodium include Swiss (53 mg per ounce), soft goat cheese (130 mg), brick (159 mg), and Monterey Jack (170 mg). If you’re watching your blood pressure, Swiss cheese is in a category of its own, with barely any sodium at all despite being a full-fat cheese. Ricotta is another naturally low-sodium option. Limiting yourself to one or two ounces per sitting helps keep sodium manageable regardless of the variety.
What About Vitamin K2 in Aged Cheese?
You may have seen claims that fermented and aged cheeses protect your arteries because they contain vitamin K2, a nutrient involved in directing calcium away from blood vessels and into bones. Vitamin K2 is indeed found in fermented foods, including cheese. However, most foods contain insufficient levels of K2 to make a meaningful impact on heart health. Natto, a fermented soybean dish common in Japan, is the only food with concentrations high enough to matter. Even supplementing with high-dose vitamin K2 for two years failed to slow calcium buildup in heart valves in a clinical trial of 365 men, though there was a modest hint of slower calcification in the coronary arteries. Bottom line: enjoy aged cheese if you like it, but don’t choose it for its K2 content.
How Much Cheese to Eat
The sweet spot appears to be about 1.5 ounces per day, which is the amount associated with the greatest cardiovascular benefit in pooled research. In practical terms, 1.5 ounces is a slice and a half of cheddar, a small handful of shredded mozzarella, or a couple of thin slices from a deli counter. A serving of cottage cheese is larger since it contains so much water: about half a cup, or 4 ounces.
If you’re eating cheese as a snack, pairing it with fiber-rich foods like whole-grain crackers, fruit, or vegetables slows digestion and blunts blood sugar spikes. Using small amounts of intensely flavored cheeses like Parmesan or aged cheddar lets you get big taste from a modest portion, which naturally limits your saturated fat and sodium intake.
A Quick Ranking
If you want a simple hierarchy based on the combination of fat, sodium, and overall nutritional profile:
- Best picks: Low-fat cottage cheese, part-skim mozzarella, soft goat cheese, ricotta, feta
- Good picks: Swiss (very low sodium despite higher fat), fresh mozzarella, Brie, Camembert
- Use sparingly: Cheddar, Gouda, Provolone, Monterey Jack
- Limit: Processed American cheese, blue cheese, cream cheese
The varieties in the “use sparingly” category aren’t harmful in small amounts. They just pack more fat and sodium per ounce, so keeping portions to one ounce matters more. The cheese that’s healthiest for your heart is ultimately the one you enjoy enough to eat in reasonable amounts, rather than the one you avoid entirely and replace with something worse.