How many calories do you need?
Daily needs depend on age, sex, size and activity. A moderate deficit of about 300–500 kcal a day gives gradual loss of roughly 0.25–0.5 kg per week. For many women this means 1,400–1,800 kcal and for many men 1,800–2,200 kcal. Divide into three meals of 350–500 kcal and one or two snacks of 100–200 kcal. A dietitian can tailor targets. See dieta hipocalórica (Spanish).
The low-calorie plate
- Half the plate: non-starchy vegetables (salad, broccoli, peppers, courgette, mushrooms, tomatoes).
- A quarter: lean protein (fish, chicken, eggs, tofu, legumes, lean beef).
- A quarter: high-fibre carbohydrates (brown rice, quinoa, wholegrain pasta, potatoes with skin, beans).
- A little fat: one teaspoon to a tablespoon of olive oil, a few nuts or a slice of avocado.
- Flavour: herbs, spices, lemon, vinegar, garlic and mustard.
- Drink: water, sparkling water or unsweetened tea.
Low-calorie breakfasts (about 250–400 kcal)
- Vegetable omelette with a slice of whole-grain toast.
- Greek yoghurt with berries and a teaspoon of chia.
- Overnight oats with apple and cinnamon.
- Cottage cheese with pineapple.
- See breakfast for weight loss for more.
Low-calorie lunches (about 350–500 kcal)
- Large salad with grilled chicken, chickpeas, cucumber, tomato and olive oil and lemon.
- Lentil and vegetable soup with a slice of whole-grain bread.
- Tuna and white bean salad with rocket and lemon.
- Whole-wheat wrap with turkey, hummus and plenty of salad.
- Quinoa bowl with roasted vegetables, feta and a poached egg.
- Prawn and vegetable stir-fry with a small portion of brown rice.
Low-calorie dinners (about 350–500 kcal)
- Baked salmon with asparagus and a small baked potato.
- Chicken and vegetable curry with cauliflower rice.
- Turkey chilli with beans and tomatoes, topped with a spoonful of yoghurt.
- Zucchini noodles with prawns and tomato sauce.
- Stuffed peppers with lean mince, rice and herbs.
- Grilled cod with ratatouille.
- Tofu and vegetable stir-fry with a little rice.
- Egg and vegetable frittata with a green salad.
Cooking tricks that cut calories
- Grill, bake, steam, poach or air-fry instead of deep-frying.
- Use non-stick pans and measure oil with a teaspoon or a spray.
- Replace cream with Greek yoghurt or a splash of milk in sauces.
- Thicken soups with pureed vegetables or beans instead of cream.
- Bulk meals out with vegetables, mushrooms, cauliflower rice or courgette noodles.
- Use herbs, spices, citrus, vinegar and mustard for flavour instead of heavy sauces.
- Dress salads yourself with olive oil and lemon.
Calorie traps to watch
- Salad dressings, oils and cheese, which can add 200–300 kcal.
- Sugary sauces (barbecue, sweet chilli, teriyaki).
- Drinks: soda, juices, alcohol, sweet coffees and smoothies.
- Large portions of rice, pasta and bread.
- Nuts, nut butters and dried fruit eaten from the pack.
- “Healthy” packaged foods such as granola, protein bars and wraps with high calories.
- Eating while distracted.
Meal prep and shopping tips
- Plan 3–4 dinners and cook double portions for lunches.
- Batch-cook soups, chilli, lentil stews and roasted vegetables.
- Keep frozen vegetables, tinned beans, tinned fish and eggs for quick meals.
- Portion meals into containers to control size.
- Shop with a list and avoid shopping when hungry.
- Use apps or a food diary for a few weeks to learn portion sizes.
When to seek advice
- Diabetes, kidney disease, heart disease, pregnancy or breastfeeding.
- A BMI under 20, history of eating disorders or concern about restriction.
- Unintentional weight loss, dizziness or fainting.
- Rapid loss of more than 1 kg a week for several weeks.
- Plateaus despite adherence.
- Children or teenagers wanting to diet.
Three common situations
A person who feels hungry on salads: add protein, beans and a whole grain, and use enough olive oil for satisfaction.
Someone who eats “healthy” but still gains weight: check portion sizes, dressings, nuts and liquid calories.
A busy parent without time to cook: use batch cooking and frozen vegetables with eggs, tinned fish or lentils.
Low-calorie snacks to bridge the gaps
- A piece of fruit with a few almonds (about 130 kcal).
- Plain Greek yoghurt with cinnamon and berries (about 100 kcal).
- Raw vegetables with two tablespoons of hummus (about 100 kcal).
- Air-popped popcorn, three cups (about 90 kcal).
- A hard-boiled egg and a handful of cherry tomatoes (about 90 kcal).
- See healthy snacks for weight loss for 25 more ideas.
Habits that make low-calorie eating stick
Eat slowly and stop when you are comfortably satisfied rather than full. Serve meals on smaller plates, drink a glass of water beforehand and keep tempting foods out of sight. Plan for treats rather than banning them, so that a slice of cake does not turn into a lost weekend. Sleep seven to nine hours, because short sleep raises hunger hormones, and add regular physical activity, which supports weight loss and mood. Weigh yourself weekly or track measurements rather than reacting to daily fluctuations, and aim for progress over perfection.
Key points to remember
Build low-calorie meals around vegetables, lean protein and fibre, cook with minimal added fat and watch sauces, drinks and portions. Avoid extreme restriction. Our nutrition team can design meals that fit your tastes and goals.
This guide is for general information and does not replace an assessment by your own doctor or dietitian.
Questions about low-calorie meals for weight loss
These answers are general information and do not replace an examination or individual medical advice.
How many calories should a weight-loss meal have?
Often 300–500 kcal, depending on your total daily target.
What makes a low-calorie meal filling?
Protein, fibre and plenty of vegetables and water-rich foods.
Can I eat pasta and rice?
Yes, in smaller portions, preferably wholegrain, with vegetables and protein.
Are low-calorie diets safe?
Moderate deficits are; very low-calorie diets need supervision.
Do I need to count calories?
Not always; plate method and portion awareness often work.
How fast should I lose weight?
About 0.25–0.5 kg per week is sustainable.
Sources
- NHS · The Eatwell Guide
- NHS · Lose weight
- NHS · Managing your weight
- USDA FoodData Central (nutrient database)
This guide is for general information and does not replace medical advice. How a problem is diagnosed and treated depends on your examination and medical history. If you think you have an emergency, contact your local emergency services.