Losing 9kg in just two weeks is a challenging task. Many individuals resort to surgery or weight loss pills for rapid weight loss, but alternatively, adjusting your diet and lifestyle can also yield significant results in a much healthier way. However, it's important to note that losing such a large amount of weight in a short time is not normal, and you should consult with a doctor before proceeding with this plan.
Steps
Modify your diet

Switch to drinking only purified water. Water helps detoxify your body, eliminating toxins and making it easier to lose weight. Additionally, water contains no calories, making it a better choice compared to sugary drinks. In fact, if you can commit to drinking only water, you could lose even more weight. If you want a flavored drink, opt for unsweetened tea.
- This should be followed strictly 24/7, except before exercise or beauty treatments. Before working out, you can enjoy a cup of black coffee (or add a little skim milk). The caffeine will energize you, helping you to work out more vigorously.
- Aside from helping you feel full, drinking water also boosts metabolism. Recent studies show that drinking two glasses of cold water can increase metabolic rate by 40% within just 15-20 minutes. Participants in water-based weight loss studies reported losing up to 7kg in 3 months, mostly from only drinking water.

Eliminate junk food from your diet. Do it thoroughly. While someone following a standard diet plan may be tempted by junk food once or twice without much impact, if your goal is to lose weight drastically in a short time (like yours), you must completely avoid junk food.
- Stay away from foods high in fats and sugars. Say no to anything coated in batter, fried, covered in chocolate, or dipped in sugar.
- Read ingredient labels carefully. Even foods that seem healthy, such as yogurt or oatmeal cookies, may contain hidden sugars.

Eliminate starches. Foods like pasta and cookies are packed with carbohydrates, essentially disguised sugar. These little enemies mess with insulin levels, increase body fat, and ultimately cause weight gain. To combat this, cut back on processed starches – including white rice, bread, potatoes, cookies, pastries, fries, donuts, and ice cream.
- In general, you need to remove starch from your diet. Face the facts: Losing 9kg in 2 weeks is a tough challenge. To follow the ketogenic diet, where fat, not glycogen, is prioritized for fuel (since glycogen stores are depleted), you must completely avoid or minimize starches. Along with cutting out starch, you’ll need to ditch starchy vegetables (like potatoes, squash, carrots), all grains (including oats and brown rice), and sugary fruits such as bananas, oranges, and apples.
- What else? Hunger may tempt you to fall back into old eating habits. To resist this, make sure you eat healthy foods regularly (don’t skip meals or binge eat). When you’re full, you’ll make smarter decisions.

Eat "negative calorie" foods. The idea of negative-calorie foods is still debated. The theory suggests that some foods require more energy to digest than the calories they provide. Even if you don’t burn much more energy eating these foods, you won’t absorb as many calories from them either.
- For vegetables, eat plenty of asparagus, beets, broccoli, cabbage, cauliflower, celery, cucumber, garlic, green beans, lettuce, onions, radishes, spinach, kale, and Japanese cucumber.
- For fruits, focus on blueberries, cantaloupe, cranberries, grapefruit, honeydew, lemons, oranges, mangoes, papayas, raspberries, strawberries, tomatoes, tangerines, and watermelon.

Choose lean proteins and eat plenty of vegetables. Instead of beef and pork, opt for lean meats like chicken or fish. Fish is especially good because its fatty acids provide healthy fats, reducing your need for unhealthy oils or fats from other sources.
- As for greens, eat as much as you want. Breakfast, lunch, and dinner – the more the better. Green vegetables are nutrient-dense, low in calories and sugar (except for potatoes), and help you feel full. Eating greens is the quickest path to weight loss.

Consider temporary dieting with caution. The truth is, short-term diets can work. If you’re looking for a method to shed weight quickly without worrying about gaining it back, temporary dieting might be the right choice. Just keep in mind that these diets are not healthy and don’t offer lasting results.
- One of the most popular short-term diets today involves juices. Another contender is the Master Cleanse diet – both are drink-based diets. These methods provide rapid results, but they’re difficult to stick to and maintaining them long-term isn’t wise. If you’re feeling adventurous, you can try them, but be wary of any advice they offer.
Revamp your eating habits

Make sure you eat all your meals. While you may be tempted to skip breakfast or even fast for an entire day, it's important to resist this urge. Extended fasting can lead to muscle loss and other health issues. Additionally, it can make your weight loss efforts more difficult. When your body doesn't get enough nutrients, it automatically slows down its metabolism to conserve energy. You might see a significant weight loss in the first few days, but after two weeks, any lost weight could return.
- Exceptions apply if you're following a disciplined intermittent fasting regimen. This involves refraining from eating anything for 8-24 hours and then consuming a pre-determined calorie intake (which often results in you eating more). This method can be effective, but remember to do it under professional guidance. Improper fasting can actually increase your body's tendency to store fat.
Stop eating after a certain time of the day. Many people find success with a time-restricted eating plan. They decide to stop eating after a specific hour, usually around 7 to 8 PM. Restricting nighttime eating is often the hardest part for most people, especially when the TV is on and friends are enjoying snacks. It can be very challenging to hold back, but you'll find that it's totally worth it.
- Adjust the rule to fit your lifestyle. Stick to it for five or six days a week, and allow yourself some social flexibility—though it doesn’t mean you can indulge freely. Try tasting a small glass of red wine and a few bites, but resist eating everything laid out before you.

Track your calorie intake. The notion that calorie consumption is the ultimate factor has become somewhat outdated. In reality, everyone's body is different, and not all calories are processed the same way. Moreover, counting calories can be quite tedious. In other words, even though it’s helpful, it's just a rough guideline. For the purposes of this diet, determine how many calories you need in a day. If you’ve achieved good results, that's fantastic—reward yourself with a piece of dark chocolate or an extra serving of chicken breast. Just don't overdo it and keep those cravings in check.
- Your goal is to balance the calories you burn with those you consume. In other words, the more you exercise, the more you can eat. Typically, weight loss happens when you burn more calories than you consume. On average (yes, the dreaded average), you need to burn more than 3,500 calories than you consume to lose 450 grams. To lose 9 kg in two weeks, you would need to burn over 5,000 calories more than you consume each day. Yes, this is an extremely high bar to reach.

Master portion control. It’s not just about what you eat, but also how much you eat. Even the healthiest foods need to be consumed in moderation. Start by using smaller plates and avoid constant refills. Stick to the serving sizes listed on food labels and look up nutritional information if you're unsure.
- Snacking undermines portion control. To prevent devouring an entire bag of nuts when you only planned to eat a few, portion out your serving beforehand. That way, whether you're hungry or not, the amount you eat is exactly what you intended, and nothing more. This helps you manage your intake more effectively.

Consider a little "cheating". Intermittent fasting and calorie cycling methods are gaining popularity. For these methods, adding a few more calories is actually beneficial as it helps the body avoid reaching a state of low metabolism (when the body stops burning calories). After a week of strict dieting, you might want to relax a bit and enjoy your meals – it could help keep your diet on track.
- If the diet lasts longer, you could take an entire day to indulge in food. Eat whatever you like. However, for this 14-day plan, it’s best to limit yourself to just one or two hours. So, set aside 60 minutes this week to head out and savor the food. But afterward, return to your regular plan.

Eat more frequently. Be sure to understand the word “frequently” – eat “more frequently,” not “more.” Think of it this way: if you have only 5 celery sticks to eat throughout the day (just an example), you wouldn't eat them all in one meal. Instead, you would divide them to avoid feeling too hungry. Similarly, during these 2 weeks, you won’t eat much, but the key is eating smaller amounts more often. This will help prevent your stomach from feeling empty.
- Many healthy diets encourage snacking for positive reasons like boosting metabolism and preventing overeating later. By dividing your meals, you can add a bit more calories each time. After two weeks, your body will thank you for following this approach.
Change your lifestyle

Start cooking. The only real way to control your nutrient intake and calorie consumption is to cook your own meals. While many restaurants now include healthy dishes on their menus, you can never be sure what’s in the salad dressing or the kind of oil they use. It's best to cook for yourself and have full control over what you consume.
- By cooking at home, you can use healthier oils like olive oil, reduce butter, sugar, and salt (a culprit in bloating), and still manage portion sizes. And let’s not forget – it helps save money.

Track your eating and exercise. If this is meant to be a long-term lifestyle change, tracking may seem impossible. However, since it’s only for 14 days, it’s definitely doable. Keeping a record helps you see where you have challenges, what to improve, and track your progress – a truly rewarding feeling. It’s proof that you’ve been making great strides toward your goal.
- You can easily track with just paper and a pen, like keeping a food diary, or download a ready-made weight loss app. These apps can calculate your calorie intake, carbs, fats, proteins, and even track your workouts.

Stick to the Plan. It might seem obvious, but one of the most important things you can do to ensure a successful weight loss journey is to stick to your original plan. This becomes especially important with a short-term diet like this one. You can't afford to slack off on your diet or workouts for even a day. Once you choose this path, you must commit to seeing it through.
- This goal becomes easier to achieve if you share your plan with others or find a partner to join you. They will hold you accountable, help with your diet and workouts, and even join you in venting about it!

Dedicate a few hours for exercise each day. The best way to burn calories is through exercise. If your body is already accustomed to moderate physical activity, you can increase the intensity by alternating between moderate and high-intensity activities throughout the day. If you're new to exercise, stick to moderate activities. Make sure you take regular breaks and stay hydrated.
- Intense activities burn between 400 and 600 calories per hour, such as running, cycling, swimming, aerobics, basketball, and weightlifting or gardening.
- Moderate activities burn between 200 and 400 calories per hour, such as hiking, light gardening, dancing, golfing, slow cycling, and walking. Aim for at least 30 minutes of exercise 2 or 3 times a week.

Seize every opportunity to exercise. While watching your favorite show, try doing push-ups during the commercial breaks. While washing dishes, dance around a bit. Do lunges down the hallway. It might sound silly, but "small efforts add up"—these tiny movements will help build muscle and slim down your waistline.
- Even if your schedule seems tight, find ways to "kill two birds with one stone." Walk the dog around the block, park farther from the entrance at the shopping center, clean your house energetically, or wash your car yourself. Life is full of opportunities to get moving.

Get enough sleep. The human body can't function properly without enough rest. Sleep provides the body with time to recharge, regulate vital functions, and consequently, helps burn calories and lose weight more efficiently. For rapid weight loss in a short time, make sure you're getting 7 to 8 hours of sleep each night.
- Sleep not only leaves you feeling refreshed, but it also regulates hormones and curbs hunger cravings. So, sleep helps you burn calories while also preventing you from reaching for food, even after waking up.
Tips
- Always imagine how amazing you'll look as motivation to keep you going with your workout routine.
- Download mobile apps that help track your water intake, workouts, and food consumption. These tools help you focus on your weight loss goals and identify areas of your diet and exercise where you can improve.
- Post pictures of your favorite celebrities or models with ideal bodies on containers, refrigerators, and even snack cabinets. This way, whenever you feel like grabbing a bag of chips, the image of a slim body will remind you of your goal, making you put the chips down and choose a glass of water instead.
- Consult with a doctor or personal trainer to get advice on how to lose weight quickly in such a short time. There are many weight-loss supplements available today, and a professional can tell you whether these supplements are effective or if a particular therapy method really works.
- Cardio (exercise that increases your heart rate) is a fantastic way to get in shape. Running or dancing for several hours a day can work wonders.
- For noticeable results, you need to exercise at high intensity. It may feel difficult at first, but once you get started, you'll find it’s not that bad.
- Take pictures to document your progress. It may seem like there's no big change when you look in the mirror, but looking at the photos will make the difference more obvious.
- Never let yourself get too hungry, as this will weaken your body, and when you start eating again, the weight will come back quickly! Stick to a healthy diet instead. You need to eat to lose weight.
- Share your plan with someone. You can ask them to join you and/or follow the plan with you. It may sound silly, but maintaining face will motivate you to stick to the plan.
- When you're craving something sweet, drink a bottle of water and go for a walk. If the craving persists, chew on a piece of gum and remind yourself of the time when you reach your ideal weight!
Warning
- Doctors usually recommend losing an average of 450 to 900g of weight per week. Before attempting rapid weight loss, it's important to consult with healthcare professionals to ensure that this plan won’t negatively impact your health or involve any hidden risks.
