Compare the portion, not only 100 grams
People often use “low-calorie food” to mean a lighter choice. Here we discuss building meals, not a regulated claim on a food label. A portion’s energy depends on both its composition and how much is eaten.
Imagine two soups. One contains 50 kcal per 100 grams and the other 80. A 500-gram serving of the first gives 250 kcal; a 300-gram serving of the second gives 240. A lower value per 100 grams does not always mean a lower total.
These numbers are a hypothetical worked example. Bread, spread and drinks change both meal totals. For a ready-made soup, check your own pack.
Five ideas for everyday meals
No specific calorie total is promised below: the recipe and portion determine it. These ideas show what you can change or add to familiar meals.
| Meal idea | A practical version |
|---|---|
| Vegetable and lentil soup | Add cooked lentils to vegetable soup to include a protein source among the main ingredients. |
| Potatoes and fish | Combine potatoes, fish and warm vegetables. Serve the sauce separately to see how much you use. |
| Casserole with vegetables | Keep a familiar main and add vegetables alongside. Compare the whole meal if the casserole portion changes too. |
| Chicken or tofu stir-fry | Use a variety of vegetables with rice or noodles on the side. Include the cooking oil in calculations. |
| A substantial salad | Add beans, eggs or tofu and potatoes or grains to salad vegetables. Dressing is part of the total. |
A lighter meal is only part of the day
Protein- and fibre-containing foods and a suitable meal routine can support fullness. Terveyskylä notes that weight management should not mean enduring constant hunger. If a tiny lunch makes evenings difficult, review the whole day.
Note two things: how long the meal felt sufficient and what you ate next. You could compare soup with and without bread on otherwise similar days. One experience is not a test proving one food is better.
Sources: Terveyskylä: hunger and weight management (Finnish)
Oil, dressing and drinks count as part of the meal
Fat quantity affects calories, but sources of unsaturated fat do not need to disappear from the diet. Nuts, oil and avocado do not become bad foods because they contain energy. The aim is to understand amounts, not label ingredients as forbidden.
When making dressing for four, divide its ingredients across four servings. If half is left unused, do not count all of it as eaten. The same principle applies to cooking: pack size does not tell you what ended up in your portion.
Try one meal at a time
Choose a meal you eat often. List its ingredients and change one thing: the vegetable proportion, sauce quantity or drink, for example. Calculate the full portion before and after using consistent assumptions.
The food calculator also shows protein, fibre and other nutrients. You can then manually log your meal’s calories in Calotank. Web results do not transfer automatically, and portion sizes and recipes always leave some uncertainty.
Sources and content
- Finnish Food Authority: nutrition labels (Finnish)
- Terveyskylä: hunger and weight management (Finnish)
- Terveyskirjasto: weight management (Finnish)
Sources checked on 29 September 2026. Published by Calotank. Meal and schedule examples were prepared for Calotank. This article provides general information, not individual nutrition or treatment advice. Creator and corrections.