The 6000 kilojoule diet (approximately 1430 calories) sits in the sweet spot for steady, sustainable weight loss. It provides enough food to keep you energised and satisfied throughout the day while creating a meaningful calorie deficit. For most South African women and smaller-framed men, this level delivers consistent results without the fatigue and hunger that comes with more extreme restriction.
Medical disclaimer: Before starting any calorie-restricted diet, consult with a registered dietitian or your doctor, particularly if you have diabetes, heart disease, or any other chronic condition.
Who Is the 6000 kJ Diet For?
This plan is best suited to:
- Women with a sedentary to lightly active lifestyle aiming to lose 0.5–1 kg per week
- Smaller-framed men in a calorie deficit phase
- Anyone stepping down from a higher kilojoule intake to accelerate weight loss
- People who have plateaued on a 7000–8000 kJ plan
At 6000 kJ, most adults will lose fat while preserving muscle mass, provided protein intake is adequate (aim for 80–100 g per day).
Kilojoule Breakdown
- Breakfast: ~1500 kJ (360 cal)
- Morning snack: ~500 kJ (120 cal)
- Lunch: ~1800 kJ (430 cal)
- Afternoon snack: ~500 kJ (120 cal)
- Dinner: ~1700 kJ (405 cal)
- Daily total: ~6000 kJ (1435 cal)
7-Day Meal Plan
Day 1
Breakfast (1500 kJ / 358 cal)
- 2 eggs scrambled with 1 tsp butter
- 1 slice whole grain toast
- 1 small tomato, sliced
- Rooibos tea, unsweetened
Morning Snack (500 kJ / 120 cal)
- 1 medium apple
- 6 plain almonds
Lunch (1800 kJ / 430 cal)
- Large mixed salad: 2 cups baby spinach, 100 g grilled chicken breast, 1/4 cup cherry tomatoes, cucumber slices, 1 tbsp olive oil and lemon dressing
- 1 small whole grain roll
Afternoon Snack (500 kJ / 120 cal)
- 150 g low-fat plain yogurt
Dinner (1700 kJ / 406 cal)
- 120 g hake fillet, grilled or baked
- 1/2 cup brown rice
- 1 cup steamed broccoli and green beans
- Squeeze of lemon, herbs to taste
Day 2
Breakfast (1490 kJ / 356 cal)
- 3/4 cup rolled oats cooked with water
- 1/2 cup berries (fresh or frozen)
- 1 tsp honey
- 200 ml low-fat milk
Morning Snack (500 kJ / 120 cal)
- 1 medium pear
- 30 g low-fat cottage cheese
Lunch (1810 kJ / 432 cal)
- 1 cup lentil soup (homemade or low-sodium tinned)
- 1 slice whole grain bread
- Side salad: cucumber, tomato, red onion with 1 tsp olive oil
Afternoon Snack (490 kJ / 117 cal)
- 2 rice cakes with 2 tbsp hummus
Dinner (1710 kJ / 408 cal)
- 120 g lean beef mince stir-fry with mixed peppers, baby marrows, and onion
- 1/2 cup cooked quinoa
- Season with soy sauce, garlic, ginger
Day 3
Breakfast (1500 kJ / 358 cal)
- 2 egg whites + 1 whole egg omelette with mushrooms and spinach
- 1 slice rye bread
- Black coffee or rooibos tea
Morning Snack (510 kJ / 122 cal)
- Small banana
Lunch (1790 kJ / 428 cal)
- Tuna wrap: 1 small whole wheat wrap, 80 g canned tuna in brine (drained), lettuce, tomato, 1 tbsp tzatziki
Afternoon Snack (500 kJ / 120 cal)
- Vegetable sticks (carrot, celery, cucumber) with 2 tbsp hummus
Dinner (1700 kJ / 406 cal)
- 120 g skinless chicken thigh, oven-roasted
- 1 cup roasted butternut
- 1 cup steamed spinach
- Herbs and 1 tsp olive oil
Day 4
Breakfast (1480 kJ / 354 cal)
- 2 Provita or Ryvita crackers
- 1/4 avocado, mashed
- 2 egg whites (poached or boiled)
- 1 small tomato, sliced
Morning Snack (500 kJ / 120 cal)
- 150 g fat-free plain yogurt with 1/2 cup diced melon
Lunch (1820 kJ / 435 cal)
- Chicken and vegetable soup (homemade: 100 g shredded chicken, carrots, celery, onion, low-sodium stock)
- 1 slice whole grain bread
Afternoon Snack (490 kJ / 117 cal)
- 1 medium orange
- 8 unsalted peanuts
Dinner (1710 kJ / 408 cal)
- 150 g lean pork fillet, grilled
- 1/2 cup sweet potato, baked
- 1 cup green beans and baby marrow, steamed
Day 5
Breakfast (1500 kJ / 358 cal)
- Smoothie: 200 ml low-fat milk, 1/2 banana, 1/2 cup frozen berries, 1 tbsp oats, small handful spinach
- 1 boiled egg
Morning Snack (500 kJ / 120 cal)
- 1 medium apple
- 6 almonds
Lunch (1800 kJ / 430 cal)
- Legume bowl: 3/4 cup cooked chickpeas, 1 cup roasted peppers and courgettes, 1 tbsp tahini dressing, fresh herbs
Afternoon Snack (500 kJ / 120 cal)
- 2 rice cakes with 1 tbsp peanut butter
Dinner (1700 kJ / 406 cal)
- 120 g grilled salmon fillet
- 1/2 cup brown rice
- Large side salad with lemon and olive oil dressing (1 tsp oil)
Day 6
Breakfast (1490 kJ / 356 cal)
- 2 scrambled eggs with 1/2 cup mushrooms and baby tomatoes, cooked in non-stick pan
- 1 slice low-GI bread
Morning Snack (510 kJ / 122 cal)
- 1 small banana
Lunch (1790 kJ / 428 cal)
- 30 g biltong (lean, not droewors) with 1 large mixed salad (lettuce, tomato, cucumber, peppers) and 1 tsp olive oil dressing
- 1 slice whole grain bread
Afternoon Snack (500 kJ / 120 cal)
- 150 g low-fat plain yogurt
Dinner (1710 kJ / 408 cal)
- 1 cup chicken and vegetable stir-fry (100 g chicken breast, broccoli, snap peas, baby corn, soy sauce, garlic)
- 1/3 cup cooked brown rice
Day 7
Breakfast (1500 kJ / 358 cal)
- 3/4 cup oats with water
- 1 tsp honey and cinnamon
- 100 g low-fat yogurt (on the side)
Morning Snack (500 kJ / 120 cal)
- Vegetable sticks with 2 tbsp cottage cheese
Lunch (1800 kJ / 430 cal)
- Turkey or chicken sandwich: 2 slices whole grain bread, 90 g lean turkey/chicken, 1 tbsp mustard, lettuce, tomato, cucumber
Afternoon Snack (500 kJ / 120 cal)
- 1 medium orange or guava
Dinner (1700 kJ / 406 cal)
- Beef and vegetable potjie (light): 100 g lean stewing beef, mixed vegetables, low-sodium stock, no added fat
- 1/2 cup cooked pearl barley or brown rice
What to Drink
- Water: at least 2 litres per day
- Rooibos tea: unlimited, unsweetened
- Black coffee: up to 2 cups per day, no sugar
- Green tea: good metabolism support, unsweetened
- Avoid: fruit juices, fizzy drinks, alcohol
Tips for Success on 6000 kJ
- Meal prep on Sunday: Cook a batch of brown rice, boil eggs, and wash vegetables in advance. Hungry + unprepared = bad choices.
- Weigh your proteins: Kitchen scale accuracy matters at this calorie level. An extra 50 g of chicken adds ~250 kJ.
- Use non-stick cookware: Saves oil (and kilojoules) without sacrificing flavour.
- Eat slowly: It takes 20 minutes for your stomach to signal fullness. Rushing meals leads to overeating.
- Track what you eat: Apps like Cronometer or MyFitnessPal can be set to kilojoules.
- Do not skip meals: At 6000 kJ, hunger is real. Skipping breakfast to bank kilojoules for dinner usually backfires.
Foods to Prioritise
- Lean proteins: Chicken breast, hake, tuna, eggs, low-fat cottage cheese, lentils
- Complex carbohydrates: Brown rice, oats, sweet potato, whole grain bread, quinoa
- Vegetables: All non-starchy vegetables — broccoli, spinach, baby marrow, green beans, cauliflower
- Healthy fats (small amounts): Avocado (1/4 per day max), almonds (6–10), olive oil (1 tsp per meal)
- SA-friendly options: Lean biltong (occasionally), rooibos tea, fresh guavas, pawpaw, sardines in tomato sauce
Foods to Avoid
- Braai meats with high fat content (boerewors, fatty ribs, sosaties with marinade)
- White bread, white rice, and refined pasta
- Pap/mielie meal in large portions
- Sugary drinks, alcohol, fruit juice
- Biscuits, rusks, koeksisters, and other baked treats
- Full-fat dairy in quantity
- Takeaways and fast food
Expected Results
At 6000 kJ per day, most adults create a deficit of 2000–4000 kJ below their maintenance needs. This translates to roughly 0.5–1 kg of fat loss per week, depending on activity level, age, and starting weight. Results vary — some people lose faster in the first two weeks due to water weight, then settle into a slower steady rate.
Important: The 6000 kJ diet is not recommended for pregnant or breastfeeding women, growing teenagers, or anyone with an active eating disorder history. If you feel dizzy, fatigued beyond the first week, or are losing more than 1.5 kg per week, increase your kilojoule intake and speak to a healthcare professional.
Compare Kilojoule Diet Plans
- 5000 kJ Diet Plan — more aggressive deficit
- 7600 kJ Diet Plan — moderate, flexible approach
- 8000 kJ Diet Plan — sustainable long-term eating
- 10000 kJ Diet Plan — maintenance for active adults