How to Lose Weight Fast: 3 Simple Steps, Based on Science (2024)

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Cutting carbs, eating more protein, lifting weights, and getting more sleep are all actions that can promote sustainable weight loss.

Focusing on long-term health and habits that you can stick with over time will help improve your health and are more likely to result in lasting weight loss.

Here are some science-backed tips to help you lose weight.

1. Eat protein, fat, and vegetables

Aim to include a variety of foods at each meal. To balance your plate, your meals should include protein, fat, vegetables, and complex carbohydrates.

The following are the recommended amounts you should eat by age according to the Dietary Guidelines for Americans 2020–2025:

Food typeAdultsChildren 2–8Children 9–13Adolescents 14–18
Protein5–7 ounces (oz)2–5.5 oz4–6.5 oz5–7 oz
Vegetables2–5 cups1–2.5 cups1.5–3.5 cups2.5–4 cups
Healthy oils22–44 grams (g)15–24 g17–34 g24–51 g
Grains5–10 oz3–6 oz5–9 oz6–10 oz

Protein

Eating a recommended amount of protein is essential to help preserve muscle mass while losing weight.

Diets with adequate protein may also reduce cravings and snacks by helping you feel full and satisfied.

The following are examples of foods that contain protein with amounts and servings from the U.S. Department of Agriculture’s Food Data Central database.

FoodAmount of protein/100 gramsDaily serving
lean ground beef20.8 g3.7 oz
skinless chicken breast23.2 g3.7 oz
black beans21.6 g0.7 oz
lentils9.02 g0.7 oz

Vegetables

All vegetables can be nutrient-rich additions to your diet. Aim to eat about 2.5 cups of vegetables daily.

Examples of vegetables include:

  • leafy greens
  • tomatoes
  • bell peppers
  • green beans
  • squash

Note that certain vegetables — like potatoes, sweet potatoes, and corn — are considered carbs or grains when on the plate because they’re higher in carbs and calories. Be mindful of your portion sizes when adding these vegetables to your plate.

Healthy fats

Healthy fats like olive oil, avocado, nuts, and seeds are great choices for your eating plan.

Although some oils, like olive oil, are considered healthy, they also provide 9 calories per gram, compared to protein and carbs, which provide only 4 calories per gram.

For this reason, it’s important to eat healthy fats in moderation and limit saturated and trans-saturated fats.

The following are examples of other foods that contain healthy fats:

FoodHealthy fat content
almonds (100 g)49.9 g (3.8 g saturated fat)
sunflower seeds (100 g)56.1 g (5.4 g saturated fat)
green olives (100 g)15.3 g (2 g saturated fat)
avocados (100 g)14.7 g (2.1 g saturated fat)
butter (100 g)81.1 g (51.4 g saturated fat)
coconut oil (100 g)99.1 g (82.5 g saturated fat)

Butter and coconut oil should be enjoyed only in moderation due to their high saturated fat content.

2. Move your body

The Physical Activity Guidelines for Americans recommend combining cardio workouts with weight training for optimal health.

Cardio workouts include things like walking, jogging, running, cycling, or swimming. Learn more about types of weight training exercises.

Be sure to talk with a doctor before starting a new exercise plan.

3. Eat more fiber

Fiber moves slowly through the digestive tract and can help you feel fuller for longer to support weight loss.

It might also stabilize blood sugar levels, promote regularity, and protect against certain chronic conditions.

Fruits, vegetables, whole grains, breads, and legumes are food groups that contain a lot of fiber. Aim to eat 2 cups of fruit and 6 oz of grains daily. Many vegetables and legumes also contain fiber.

The following are examples of foods that contain fiber with their recommended daily servings:

FoodFiber/100 g
oats (100 g)10.4 g
chickpeas (100 g)5.9 g
bananas (1 banana)2.2 g
brussels sprouts (100 g)2.6 g
beets (100 g)2 g
apples (100 g)2 g
quinoa, cooked (100 g)2.8 g

4. Eat mindfully

Having a good understanding of how your body responds to food and eating can help you make sure you’re not overeating. This is known as mindful eating. It can involve the following:

  • eating more slowly
  • learning to recognize when you’re hungry vs. when you’re craving food for emotional reasons
  • cooking colorful foods with a variety of textures to prolong and enjoy your meals

The reason eating quickly can be problematic is that it doesn’t allow your brain to register consciously when you’re full.

Eating slowly gives your stomach more time to tell your brain you’re full, which helps you learn to distinguish the feeling of genuine hunger vs. fullness. This can result in you eating less.

Try minimizing distractions while you eat and follow these to slow down during your meals. Learn more about mindful eating and weight loss.

5. Stay hydrated

Drinking plenty of water can help promote weight loss by reducing your food intake, especially if you drink water before a meal.

It might also work by increasing fat burning, which can help enhance long-term weight loss.

Be sure to choose water or other low calorie drinks rather than sugar-sweetened beverages like soda, which are high in sugar and calories and could contribute to weight gain.

Other benefits from drinking water related to weight loss include helping you stay hydrated while you exercise and helping remove waste from the body. In general, drinking water helps your body run more efficiently.

6. Get plenty of sleep

In addition to changing your diet and exercise routine, getting enough sleep each night may be beneficial for weight loss.

One study found that people who regularly sleep less than 7 hours per night are more likely to have a higher body mass index and develop obesity than those who sleep more.

Plus, sleep deprivation might also alter levels of hormones that control hunger and appetite.

As a general rule of thumb, it’s recommended to aim for at least 7 hours of high quality sleep each night.

It’s not always necessary to count calories as long as you follow a balanced diet rich in protein, fat, and vegetables.

If you’re not losing weight, you may want to keep track of your calories to see if that’s a contributing factor.

Try using a free online calculator to estimate your calorie needs.

Eating too few calories can be dangerous and less effective for losing weight. Aim to reduce your calories by a sustainable and healthy amount based on a doctor’s recommendation.

A note on calorie counting

Counting calories may be a helpful tool for some, but it may not be the best choice for everyone.

If you’re preoccupied with food or weight, feel guilt surrounding your food choices, or routinely engage in restrictive diets, consider reaching out for support. These behaviors may indicate a disordered relationship with food or an eating disorder.

Talk with a qualified healthcare professional, such as a registered dietitian, if you’re struggling.

You can also chat, call, or text anonymously with trained volunteers at the National Eating Disorders Association helpline for free or explore the organization’s free and low cost resources.

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Here are a few nutritious meal ideas that can support weight loss and include a mix of proteins, healthy fats, and complex carbs:

  • poached egg with sliced avocado and a side of berries
  • salmon baked with ginger, sesame oil, and roasted zucchini
  • spinach, mushroom, and feta crustless quiche

For some nutritious snack ideas, check out this article.

You may lose weight more quickly in the first week of a diet plan and then at a slower but more consistent rate after that. In the first week, you typically lose a mix of both body fat and water weight.

If this is the first time you’re changing your diet and exercise habits, weight loss may happen more quickly. Losing 0.5–2 pounds (lbs) per week is a safe amount to aim for.

What is the fastest way to lose weight?

Reducing your calorie intake and adding more physical activity to your routine can help you lose weight quickly and sustainably. That said, each person is different, and there may be other factors that need to be considered, such as your diet, what medications you’re taking, your hormones, your mood, and genetics.

How can I lose weight in 7 days?

Decreasing your intake of processed foods and added sugar can help you lose weight in 7 days.

Drinking plenty of water and adding fiber to your diet might also help. That said, many factors influence your ability to lose weight, and it’s better to aim for slower and more sustainable weight loss of 0.5–2 lbs per week.

How can I drop 20 pounds fast?

Exercising, staying hydrated, and enjoying a balanced diet rich in nutrient-dense foods can help you lose 20 pounds or reach your healthy goal weight.

For safe and healthy weight loss, 0.5–2 pounds of weight loss per week is a realistic weight loss goal that you are more likely to maintain.

Eating protein, fat, and vegetables; drinking more water; increasing the fiber in your diet; and adding exercise may all help you reach your weight loss goals. But there may be other things to consider, like what medications you take, other health conditions you have, your hormones, and genetics.

How can I lose 10 pounds in a week?

Losing 10 pounds in a week is not realistic or sustainable. For safe and healthy weight loss, aim for 0.5–2 pounds of weight loss per week by changing your diet and lifestyle.

How can I lose 15 pounds in 2 weeks?

Losing 15 pounds in 2 weeks is unrealistic, unsustainable, and likely unsafe. Healthy weight loss is 0.5–2 pounds of weight loss per week, and you may be most likely to do this by changing your diet and modifying your lifestyle.

While losing weight quickly may be your goal, it’s important to think about the long run.

While you may lose water weight quickly, fat loss takes longer, and developing sustainable weight loss may take longer than you’d like.

Following a balanced diet and staying active can help support long-term weight loss.

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How to Lose Weight Fast: 3 Simple Steps, Based on Science (2024)

FAQs

How to Lose Weight Fast: 3 Simple Steps, Based on Science? ›

Exercising, staying hydrated, and enjoying a balanced diet rich in nutrient-dense foods can help you lose 20 pounds or reach your healthy goal weight

weight
Human body weight is a person's mass or weight. Strictly speaking, body weight is the measurement of weight without items located on the person.
https://en.wikipedia.org › wiki › Human_body_weight
. For safe and healthy weight loss, 0.5–2 pounds of weight loss per week is a realistic weight loss goal that you are more likely to maintain.

What are 3 steps to lose weight? ›

Ten Steps to Losing Weight
  • Eat breakfast. ...
  • Gradually switch from whole milk to skim. ...
  • Find physical activities you enjoy. ...
  • Sneak exercise in throughout the day. ...
  • Lay off the fast food. ...
  • Manage your stress. ...
  • Break your "tired" cycle. ...
  • Eat plenty of fruits and vegetables.

How to lose weight according to science? ›

Methods of weight loss that scientific research supports include the following:
  1. Trying intermittent fasting. ...
  2. Tracking your diet and exercise. ...
  3. Eating mindfully. ...
  4. Eating protein with meals. ...
  5. Cutting back on sugar and refined carbohydrates. ...
  6. Eating plenty of fiber. ...
  7. Balancing gut bacteria. ...
  8. Getting a good night's sleep.

What is the 3 2 1 method for weight loss? ›

The numbers stand for three days of strength training, two days of Pilates, and one day of cardio, which could be anything from running to walking. The schedule might help those who have trouble staying consistent and the diverse types of movements will activate different muscle groups.

What is the 3 day method diet? ›

The military diet requires people to follow a low calorie diet for 3 days and then return to regular eating for 4 days. Across the first 3 days, daily calorie intake is restricted to 1,400, 1,200, and 1,100 calories. The diet is high in protein and low in fat, carbohydrates, and calories.

What are the big 3 for fat loss? ›

The 'Big 3' lifts refer to the barbell Squat, Bench Press, and Deadlift. This workout will show you how to practice and get proficient with them quickly.

What is the trick to losing weight fast? ›

Decreasing your intake of processed foods and added sugar can help you lose weight in 7 days. Drinking plenty of water and adding fiber to your diet might also help. That said, many factors influence your ability to lose weight, and it's better to aim for slower and more sustainable weight loss of 0.5–2 lbs per week.

How did Kelly Clarkson lose her weight? ›

Walking, eating a healthy mix of foods, and enjoying occasional treats are among some of the methods she's used to shed pounds. The singer also says she uses infrared saunas and cold plunges. “Walking in the city is quite the workout. I'm really into infrared saunas right now.

What are the 5 foods that burn belly fat? ›

Five foods that may help burn belly fat include:
  • foods with soluble fiber like fruits, vegetables, and legumes.
  • foods with protein like meat, fish, eggs, and dairy.
  • fatty fish like tuna and salmon.
  • foods with probiotics like yogurt, kefir, sauerkraut, and kimchi.
  • green tea.

What is the 321 method? ›

321 Rib Method

This technique calls for 3 hours of smoking, 2 hours of wrapping, and 1 hour of cooking. The ribs are first smoked at a low temperature to give them the smoky flavor that many people love. Then they are wrapped in foil with some liquid such as apple juice or beer, and cooked for two hours.

What is the 321 diet? ›

In the meal plan, there are three balanced meals, two healthy snacks and one treat every day. The exercise program revolves around circuits of three minutes of cardio, two minutes of strength training and one minute of abdominal exercises.

What is the 80 20 rule diet? ›

The 80/20 rule is a guide for your everyday diet—eat nutritious foods 80 percent of the time and have a serving of your favorite treat with the other 20 percent. For the “80 percent” part of the plan, focus on drinking lots of water and eating nutritious foods that include: Whole grains. Fruits and vegetables.

How to drop 10 lbs quickly? ›

11 ways to lose 10 pounds safely
  1. Calorie deficit.
  2. Avoid junk food.
  3. Protein.
  4. Move more.
  5. High-intensity cardio.
  6. Resistance training.
  7. Intermittent fasting.
  8. Reduce bloating.
Nov 23, 2023

Can I slim down in 3 days? ›

Weight loss is possible on The 3 Day Diet, but only because it is very low in calories. And realistically, most of that weight is likely water weight and not fat loss because the diet is so low in carbohydrates. As soon as a dieter resumes eating a normal amount of carbohydrates, the weight will come back.

How to do a 3 day detox at home? ›

For the three days of the detox, you could eat just whole foods, grains, fruits, and vegetables, and ingest no stimulants in order to give your body a break, relax the liver, detox the kidneys and adrenals, and enhance digestion. If you eat meat, you might want to try a vegetarian or vegan diet for a few days.

What are the 5 simple steps to lose weight? ›

5 Steps to Lose Weight and Keep It Off
  • Set realistic goals. Know where you are today so you know how to get where you want to be. ...
  • Understand how much and why you eat. Use a food diary or tracking app to understand what, how much, and when you're eating. ...
  • Manage portion sizes. ...
  • Make smart choices. ...
  • Be physically active.
Jan 18, 2024

What are the three C's of weight loss? ›

In the end, remember the three C's of weight loss: Be Consistent with your exercise, Change the movements and workouts (if not every session, at least every 6-8 weeks), and Control your eating habits.

What should my daily steps be to lose weight? ›

“Taking 10,000 steps a day is a traditional goal in achieving fitness and lowering the risk of heart disease and stroke,” Dr. Liana Casusi, MD, a licensed physician, tells Parade.com. "However, studies have shown that at least 15,000 steps daily is optimal to shed a few pounds for weight loss.

What are the 3 main aspects to weight loss? ›

A balanced lifestyle and nutritious diet are the key to healthful living and better weight control. Some tips for weight loss include exercising regularly, seeking social support, and keeping a food and weight diary.

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