How to compare protein in ready meals: per pack, per 100 g or per 100 kcal

One box on the fridge shelf has 24 g of protein, the box beside it 30 g. The second looks like the protein pick until you notice it is half as big again and carries 200 kcal more. Which meal has "more protein" depends on which of three numbers you read.

Illustrative example, not Plate Mate data.

Which number answers which question

Protein per pack is what you will actually eat, so it is the figure to plan a day with. Per 100 g puts a 300 g box and a 450 g box on equal terms: it tells you how dense the food is, and nothing about your portion. Per 100 kcal shows how much protein comes with the energy. Labels rarely print it, but it takes one line of arithmetic:

For the other label columns, including "per serving", see per pack, per 100 g, per serving: reading nutrition numbers.

In the table, Meal B wins on total protein because it is the bigger meal. Meal A wins per gram and per calorie. If you want a filling main meal and the extra energy fits your day, B may be the better choice. If you want something lighter that still brings a fair amount of protein, A may suit you better. The useful habit is comparing like with like, not chasing the biggest figure.

How much protein adults need

For adults, including older adults, the European Food Safety Authority sets a population reference intake of 0.83 g of protein per kg of body weight per day (EFSA). For a 60 kg adult that comes to about 50 g a day. The UK reference value is 0.75 g per kg, about 56 g a day for men and 45 g for women at typical body weights; the British Nutrition Foundation adds that average UK intakes are already above it, and that some groups, such as older adults and athletes, may need more (BNF).

These are European and UK reference values for populations, not personal targets and not Thai rules. Your own needs depend on age, body size, health and activity. If you have a medical condition, especially one affecting the kidneys, talk to your doctor or a dietitian before changing how much protein you eat.

The numbers are easiest to use spread across the day. If one ready meal covers a good share, breakfast, snacks and everything else can bring the rest.

Animal or plant

Some amino acids, the essential ones, have to come from food. Chicken, fish, eggs and dairy generally provide the full range in useful amounts. Beans, tofu, lentils, grains and nuts are often lower in one or more. The British Nutrition Foundation says the old advice to combine plant proteins at every meal is no longer considered necessary: a variety of plant foods across the day, with enough energy overall, supplies enough essential amino acids (BNF).

Thai cooking already mixes the sources. Eggs, tofu, fish, chicken, pork, beans and rice often meet in the same day, or the same dish. Neither group is better for everyone; variety does most of the work.

Try the sum on two real dishes

The current menu, with calories, protein, fat and carbohydrates per pack for each dish, is on our website; the assortment varies by machine. These values are calculated from the recipe (ingredients and weights), not measured in a laboratory, so a single pack can differ a little from its card (how recipe nutrition is calculated). Take the protein and calories from each card below and run the formula.

Sous Vide Chicken with Vegetable Sauce & Rice

450 kcal · P 60 · F 3 · C 46

Per pack. Calculated from the recipe, not measured in a lab.

See the full menu →

Salmon Cutlet with Creamy Mashed Potatoes

465 kcal · P 29 · F 19 · C 44

Per pack. Calculated from the recipe, not measured in a lab.

See the full menu →

Two meals with a similar calorie count can bring quite different amounts of protein, and a fish dish and a chicken dish each strike their own balance of protein, fat and carbohydrates. Protein is one line among several: fat, carbohydrates, salt and the ingredients list still count where a label shows them (nutrition per pack), and a lunch is more than its main dish (balanced ready lunch).