Cottage cheese has become almost synonymous with protein, turning up in toasts, salads, omelettes, pasta dishes and even desserts as the trend for high-protein foods has made it a social media favourite. Its rival, tofu, is less familiar in traditional Greek cooking but is a staple of plant-based diets, made from soybeans and prized for absorbing the flavours of whatever it is cooked with, from salads and soups to vegetable dishes.
When the two are simply weighed against each other on protein content, cottage cheese usually comes out ahead. But nutritionists say the contest has more than one round.
Cottage cheese leads on raw protein
Per 100 grams, cottage cheese can provide around 11.6 grams of protein, compared with about 9.4 grams in very firm tofu. The gap is not huge, but it exists.
Texture plays a major role in tofu's protein content: the more water it contains, the lower its protein concentration tends to be. Very firm tofu can offer around 9.4 grams of protein per 100 grams, firm tofu about 8.2 grams, soft tofu around 7 grams, and silken tofu roughly 4.4 grams.
These figures are not fixed across every product. Protein content can vary depending on the manufacturing method, and the same is true of cottage cheese, so anyone choosing either food mainly for its protein is better off checking the nutrition label than relying on a general rule.
Soy's strong card: complete protein
A protein coming from a plant does not automatically make it nutritionally inferior. Soy is a clear example: its protein is considered complete, containing all nine essential amino acids that the human body cannot produce on its own and must obtain from food.
Harvard's T.H. Chan School of Public Health describes soy as a high-quality protein source and notes that, unlike many other plant proteins, it contains all nine essential amino acids. Dairy products, including cottage cheese, are also complete protein sources containing all the essential amino acids. In that respect, the two foods offer different but equally high-quality proteins, one animal-based and one plant-based.
Why protein grams alone can mislead
This is perhaps the most interesting part of the comparison. Eating a food means eating more than its protein: fat, carbohydrates, fibre, sodium, vitamins and minerals come along with it. Two foods offering similar amounts of protein can have quite different overall nutritional profiles.
Harvard highlights exactly this point, noting that the rest of the nutrient package matters when choosing protein sources. One source might come with high saturated fat or sodium, while another is accompanied by fibre and unsaturated fat. This is where tofu starts to fight back.
Tofu offers more than protein
Soy provides fibre, B vitamins, potassium and magnesium, and is mostly made up of unsaturated fat while being low in saturated fat. Harvard recommends incorporating plant protein sources such as legumes, nuts and soy products into a balanced diet.
Cottage cheese has a different profile. It is rich in protein but, depending on its fat content, can contain more saturated fat. It also carries a feature that often goes unnoticed behind the word "protein" on the label: sodium, which can vary considerably between products. Anyone trying to limit salt intake would benefit from comparing labels closely.
A surprising calcium boost from tofu
If there is one nutrient people would instinctively credit to cheese without a second thought, it is calcium. Yet tofu holds an interesting twist here. Some varieties are made using calcium salts as a coagulant, which can give them a particularly high calcium content. This is not true of every tofu, however, since the amount depends on the production method and the coagulant used. Anyone choosing tofu with calcium in mind has good reason to check both the ingredients list and the nutrition declaration on the packaging.
Should soy be feared?
Soy has been one of the most misunderstood foods of recent decades, at times accused of affecting hormones, the thyroid or even cancer risk, largely because of its isoflavones, plant compounds that can interact with oestrogen receptors.
The evidence is far more nuanced than online headlines suggest. According to Harvard's review, data from human studies overall show a neutral or beneficial relationship between soy consumption and various health outcomes. The same source states that soy is a highly nutritious food that can be safely eaten several times a week, and likely more often, and that it can offer benefits when it replaces red and processed meat.
Has protein become an obsession?
Yoghurts with added protein, bars, drinks, desserts, bread and cereal: the word "protein" now seems to appear everywhere, often enough on its own to give a product a kind of nutritional halo.
But do healthy adults actually need huge amounts of it? The European Food Safety Authority has set a reference intake of 0.83 grams of protein per kilogram of body weight per day for healthy adults, equivalent to around 58 grams a day for a 70-kilogram adult. Needs differ across life stages, with the EFSA setting different values for children and teenagers and additional requirements during pregnancy and breastfeeding. Notably, consumption data cited by the EFSA shows that average protein intake among European adults is often already at or above that reference level.
The message, then, is not to pile more protein into every meal. For most people, the quality and variety of protein sources within an overall balanced diet matters more than the total amount.
So, cottage cheese or tofu?
If grams of protein per 100 grams is the only criterion, cottage cheese usually takes the lead. Widen the frame slightly, though, and the picture becomes far more interesting.
Cottage cheese is a practical, protein-dense food, though its fat and sodium content varies by product. Tofu offers high-quality plant protein along with fibre and mostly unsaturated fat, and when made with calcium salts can also be a significant source of calcium.
Both can fit into a balanced diet depending on a person's needs, preferences and overall eating pattern. On protein alone, cottage cheese may edge ahead on points. On overall nutritional profile, the contest is much closer. The most useful takeaway may simply be this: do not buy a food just because it says "protein" in large letters on the front. Turn the package over, since the small print is often the more interesting part.
