Losing 10kg (about 22 lbs) in just 3 weeks is extremely rapid and generally not recommended or safe for most people, as healthy, sustainable weight loss is typically 0.5-1kg (1-2 lbs) per week, with faster loss often being water, muscle, not fat, and potentially leading to health issues like nutrient deficiencies or gallstones. While extreme calorie deficits and intense exercise might achieve this temporarily, it risks muscle loss, bone density decrease, and isn't sustainable, so consulting a doctor before attempting such fast weight loss is crucial.
Keep Your Goals Reachable
The Centers for Disease Control and Prevention and the National Heart, Lung, and Blood Institute suggest that a weekly weight-loss goal of 1 to 2 pounds is ideal. If you're able to successfully lose weight at this rate, expect to lose between 3 and 6 pounds over the course of three weeks.
Depending on several factors, the time it takes to lose 10 kilos varies for each person. If you want to lose weight through conventional hypocaloric (calorie deficit) diets, where you cut out about 500 to 600 calories each day, it could take anywhere from three to six months to lose 10 kilos.
If you follow a low-carbohydrate diet, it's possible to lose 10 kilograms in 2 weeks. In general, when following a low-carbohydrate diet, an individual has to take in fewer calories than they expend.
Adele's significant weight loss wasn't from a quick fix but a two-year journey combining intense strength training, Pilates, hiking, boxing, and cardio, alongside major lifestyle changes focused on managing anxiety, not restrictive diets like the Sirtfood Diet, with workouts happening multiple times daily for mental and physical strength. Her routine included morning weights, afternoon hikes or boxing, and evening cardio, emphasizing getting stronger, which naturally led to fat loss and improved well-being.
Kelly Clarkson's rapid yet sustainable weight loss was the result of a balanced, thoughtful approach to health and fitness. By combining prescription medication, a high-protein diet, walking, and a lectin-free diet, Kelly was able to shed 60 pounds without resorting to extreme measures.
The Hidden System Behind Fast Celebrity Weight Loss
High-structure workout schedule (often 5–6 days a week, sometimes twice a day) Accountability from teams (trainers, nutritionists, stylists, even managers)
Understanding the 3-3-3 Rule
Specifically, the rule suggests: Three balanced meals per day. Three hours between each meal. Three hours of movement per week.
Wahlberg, 48, said he lost 10 pounds in five days by drinking bone broth, which is made primarily from boiling animal bones, although many store-bought bone broths contain preservatives. Proponents enjoy it because it's high in protein, and its minerals are thought to help with digestive issues.
Losing 10kg is possible with a plan that actually works long-term. Here's how to do it right: Know Your Target Timeline: Most health professionals recommend losing 0.5–1kg per week. That means 10kg could realistically be lost in 8–12 weeks—faster if you're just starting out, or have higher starting body weight.
Compared with participants who slept 8.5 hours per night, participants who slept only 5.5 hours lost 55% less body fat and 60% more fat-free mass; they also had less-favourable changes in metabolic hormone levels and substrate and energy use.
Water Weight Loss
It may take 4-6 weeks to see initial changes, but the speed of visible results depends on your starting weight, body composition, and how consistently you follow your weight loss plan. While early weight loss may involve shedding water and muscle, actual fat loss occurs more significantly in the maintenance stage.
Replacing diet beverages and sugary beverages with only water has been shown to reduce overall calorie intake and support weight loss. In one study, participants who substituted water for sweetened beverages consumed fewer calories throughout the day, helping them lose more weight over time.
Following a very low calorie diet (less than 1000 calories per day) and/or skipping meals and snacks has the opposite effect on your body. It does not promote weight loss, it actually causes weight gain in most cases.
Your 14-day weight-loss plan
For example, the loss of water might make you feel a little lighter, but you're not getting rid of belly fat. It's just a loss of water. Try to choose an eating pattern that you can maintain over time. Even if you lose a few pounds on a 3-day cleanse or fast, these types of diets aren't sustainable over a long period.
OMAD is not suitable for everyone. Studies show that eating only once a day may increase blood pressure and cholesterol levels, especially if the single meal consists of heavily processed or high-carb foods. Other potential risks of fasting include: Shakiness or physical weakness.
Daily: The most common form of intermittent fasting is a daily fast for 12 to 16 hours. For a 16-hour fast, this would result in an 8-hour feeding window during a 24-hour period. A “16:8” fast might look like eating breakfast at 11am and finishing dinner by 7pm.
Her diet included meals like vegetable poha, fruit, roti, and grilled chicken. Alia trained with Yasmin Karachiwala, blending Pilates, cardio, and strength exercises. Her 7-day routine included running, push-ups, yoga, squats, and crunches to tone and lose weight.
How much weight can you lose in 3 weeks? By 3 weeks, you could lose between 3-6 pounds (1.4-2.7kg) . It's important to focus on muscle retention during this time by including strength training in your routine. This ensures you lose fat rather than muscle.
Very Low-Calorie Diet (VLCD)
On a VLCD, you may have as few as 800 calories a day and may lose up to 3 to 5 lb (1.5 to 2 kg) week. Most VLCDs use meal replacements, such as formulas, soups, shakes, and bars instead of regular meals. This helps ensure that you get all of the nutrients you need each day.
She lost 16 pounds in 3 weeks to fit into her vintage Met Gala gown. How did Kardashian lose weight? She says she cut carbs and ate “just the cleanest veggies and protein.” She also ran on a treadmill and wore a sauna suit twice a day. Kardashian's 3-week weight loss sparked concern over the impact on mental health.
Kelly's weight loss appeared fast because she addressed underlying metabolic issues with medical support while keeping habits simple. Many celebrities rely on extreme diets; Kelly focused on consistency, walking, and protein, which created visible change without rebound.