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Can You Lose Weight Without Exercise?

Can you lose weight and keep it off without exercising? Diet and exercise are both important to your long-term health goals, but let鈥檚 see what the research says.

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by
Leann Poston, MD, MBA, M.Ed
鈥 91高清黑料
Medical Writer
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Updated by

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Science-based and reviewed

Updated:
Published:
June 13, 2025
January 11, 2022

Table of Contents

Does the thought of going to a gym bring back memories of junior high, when social points were gained strictly based on physique? Is your treadmill serving double-duty as a clothes rack or, let鈥檚 be honest, only as a dry rack? You need somewhere to dry your clothes!聽

It鈥檚 no wonder some people cringe at the thought of exercising. When you鈥檙e first starting out, it鈥檚 painful鈥攅ither emotionally from feeling like you don鈥檛 measure up or physically from DOMS (delayed onset muscle soreness).聽

Can you lose weight without exercising? While diet and exercise are both important to your health, let鈥檚 see what the research says.聽聽聽

How Exercise Contributes to Weight Loss

The Centers for Disease Control and Prevention (CDC) recommends adults <sup>1</sup> per week and resistance exercise that strengthens all major muscle groups two days per week.聽

How Much Exercise Are People Actually Doing?聽

When researchers tracked activity in <sup>2</sup>, they found that men spent approximately 35 minutes per day engaged in moderate activity. Women spent 21 minutes per day. Over 75% of this activity was in one-minute bursts. After age 50, activity decreased in all groups studied.聽

As seen in this study, the 15鈥30 minutes of exercise per day recommended by the CDC can be subdivided into brief sessions. Exercise is a planned, structured, and purposeful activity.聽

Lifestyle activity is any activity that moves your body throughout the day. Overall calorie burn from these movements adds up. Examples of <sup>3</sup> include taking the stairs, cleaning the house, cutting the grass, and walking instead of driving when doing errands. These activities, referred to as non-exercise activity thermogenesis (NEAT)<sup>4</sup> can add up to 2,000 kcal of energy spent above your basal metabolic rate.聽

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Read More:聽Here's some tips to help increase your metabolism

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What Kind of Exercise Is Most Important?聽

Researchers tracked the sitting and exercise patterns, blood glucose, serum lipids, cholesterol, weight, waist circumference, and blood pressure of 168 people. What they found is that prolonged sitting is a problem. More breaks, even very short ones, were associated with <sup>5</sup>, as well as decreased body fat. Standing periodically, instead of sitting all day, increases total daily energy expenditure and resistance to fat gain.聽

In a meta-analysis of 66 population-based studies and 162 study wise groups, researchers found that than endurance training<sup>6</sup>. However, endurance training had a greater effect on fasting insulin levels. A combination of resistance training plus diet had a greater effect on weight loss than diet alone or diet along with endurance training.

Not Everyone Agrees on the Benefits of Exercise for Weight Loss

A study that enrolled over 1,700 participants showed that a <sup>7</sup> does not directly translate into a comparable boost in total energy expenditure because other components of total energy expenditure will decrease in response.聽

,<sup>8</sup> agrees. He studied the Hadza people of Tanzania, incredibly active hunter-gatherers. He was sure they burned large numbers of calories per day. Instead, he found that people burn calories in a very narrow range, up to 3,000 per day, no matter how much they exercise.聽

Researchers have tracked stable isotopes in water to show that people in rural Nigeria had the <sup>9</sup> as Americans at the same age and body weight.聽

The Hadza people move about five hours a day hunting and gathering. They are incredibly healthy well into old age. <sup>10</sup> decreases the risk of developing cardiovascular disease, type 2 diabetes, dementia, and some cancers.聽

Resistance and aerobic exercise both have their benefits. Resistance exercise increases muscle mass, which can increase basal metabolic rate. Aerobic exercise improves cardiovascular health and decreases the risk of chronic disease.聽

However, for weight loss, there is significant evidence that suggests that diet has a much bigger impact on weight loss than exercise.聽

Simple Ways to Incorporate Resistance Training into Your Daily Routine

Strength training, or resistance exercise, can increase lean muscle mass, speed up your <sup>11</sup>, increase your <sup>12</sup> and <sup>13</sup>. There are many opportunities to sneak resistance training into your daily activities without using weights or gym equipment.聽

Try adding some of these to your daily routine. Repeat each one as many times as possible. The benefit of each movement adds up over time:聽

  • Do squats while brushing your teeth.
  • Do biceps curls with the milk carton before breakfast.
  • Lift heavy things throughout the day, such as grocery bags, pets, and children.
  • Use the kitchen counter for push-ups.
  • Set your purse or bag on the floor and squat to pick it up.聽
  • Do a wall sit in your office or living room.
  • Clench and hold your core muscles for 10 seconds when you are in the car.
  • Use your kitchen chair to do triceps dips.聽
  • Instead of walking, try doing lunges.

Calorie burn increases every time you choose to walk instead of drive, climb the stairs, or use your body weight for resistance exercise. Over time, these lifestyle activities become part of your daily life. You may get to where you no longer think of them as exercise!

6 Ways to Maximize the Impact of a Healthy Diet on Weight Loss

Losing weight without exercise may take a greater focus on maximizing the nutritional value of your diet while cutting calories. However, according to the Lancet, poor diet causes more adverse health<sup>10</sup> consequences than physical inactivity, smoking, and alcohol use combined.聽

An analysis of 66 population-based studies and 162 study groups found that if diet alone was used for weight loss, the most effective type is a &濒迟;蝉耻辫&驳迟;14&濒迟;/蝉耻辫&驳迟;.听听听

1. Drink plenty of water

Drinking water versus not drinking a beverage increases <sup>15</sup> and <sup>16</sup>. Drinking water versus drinking beverages high in calories &濒迟;蝉耻辫&驳迟;17&濒迟;/蝉耻辫&驳迟;.听

When you drink chilled water, your body needs to expend energy (burn calories) to warm the water to body temperature. In one small study, <sup>18</sup> after 14 participants drank 500ml of water at 71掳F, burning 100 calories of energy.聽

When overweight women increased overall water intake and substituted water for caloric beverages, <sup>19</sup> over one year. Over one year, drinking a liter of water per day burned enough calories to metabolize 4.4 pounds of fat.聽

Another study showed that <sup>20</sup> per day than non-water drinkers. Consuming 16 ounces of water before each meal helped middle-aged and older adults lose around <sup>21</sup> when compared to those eating the same healthy diet without an increase in water consumption.聽

Water helps your body maintain a normal temperature, protects organs, lubricates and cushions joints, and helps your body get rid of chemical wastes. Maintaining water balance in the body is important enough that multiple hormones and organs work together to regulate it.聽

Ways to increase water in your diet:聽

  • Drink a full glass of water before every meal聽
  • Infuse water with flavors such as lemon and lime
  • Use a smartphone app (like 91高清黑料) to track your water intake聽
  • Set reminders on your phone to take a water (and standing) break
  • Eat fruits and vegetables high in water content such as lettuce, celery, zucchini, and cucumber
  • Carry a reusable water bottle with you
  • Drink a full glass of water in the morning, when you brush your teeth, and before going to bed
  • Opt for water when eating out.

Drinking enough water is healthy for many reasons, including weight loss. However, increasing water intake alone will not lead to significant weight loss. In healthy people eating a mixed diet, only about 10% of energy expended throughout the day is used to metabolize food and water.聽

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2. Fill up on fiber

Insoluble fiber provides bulk to stool and improves gastrointestinal motility. Viscous fiber has multiple metabolic effects, including improving <sup>22</sup>, <sup>23</sup>, and &濒迟;蝉耻辫&驳迟;24&濒迟;/蝉耻辫&驳迟;.听

In a meta-analysis of 62 studies, researchers showed that an <sup>25</sup> in the diet reduced mean body weight, BMI, and waist circumference. However, there was no change in body fat. Researchers rated their certainty in these results as high for waist circumference and body fat, moderate for body weight, and low for BMI.聽

High Fiber Foods

Foods that are <sup>26</sup> include:

3. Watch your sugar

Americans consume more than <sup>27</sup> of added sugar. This is equivalent to sixty pounds of added sugar each year. The <sup>28</sup> that adults limit their sugar consumption to 25 g/day for women and 36 g/day for men.聽

Researchers question whether it鈥檚 the <sup>29</sup> that is the problem. In a study in which researchers replaced sugar with artificial sweeteners, no <sup>30</sup> was observed. However, after a year, the group consuming artificial sweeteners had improved weight management. Similar results were obtained when sugar was replaced with complex carbohydrates.聽

Population-wide, every 150 calories/person/day increase in sugar availability (about one can of soda) <sup>31</sup> in the population by 1.1%. Increasing evidence shows that sugar, especially in a beverage, can <sup>32</sup> in the body. Sugar calories promote fat storage and hunger. Protein calories, on the other hand, induce satiety.

How to <sup>33</sup> in your diet:聽

  • Avoid all sweetened beverages, such as soft drinks, fruit drinks, sports and energy drinks, and coffees and teas
  • Avoid snack foods
  • Avoid sweetened breakfast foods, including cereals, energy bars, flavored yogurts, and smoothies made with juice or only fruit
  • Avoid syrups, molasses, jellies, jams, drink mixes, and candy
  • Avoid sugar-sweetened聽 ice cream, gelato, and other frozen desserts
  • Avoid sweet rolls and bread, cakes, cookies, donuts, pastries, pies, and desserts

4. Eat more protein

Protein promotes a <sup>34</sup> by increasing levels of appetite-reducing hormones such as <sup>35</sup>, <sup>36</sup>, and <sup>37</sup> while reducing the hunger-inducing hormone &濒迟;蝉耻辫&驳迟;38&濒迟;/蝉耻辫&驳迟;.听

In one small study, an <sup>39</sup> from 15鈥30% of energy while maintaining a constant carbohydrate intake led to a decrease in calorie intake by 441 calories per day with an average weight loss of 11 pounds over 12 weeks. Increasing protein intake increases satiety and can lead to a decrease in overall calorie consumption.聽

Dietary <sup>40</sup> for metabolizing or storing protein, whereas carbohydrates require only 5鈥10% and dietary fats between 0鈥3%. Metabolizing a mixed diet while in energy balance makes up &濒迟;蝉耻辫&驳迟;41&濒迟;/蝉耻辫&驳迟;.听

Increasing protein in your diet is a great choice, but keep in mind that your body can only metabolize about <sup>42</sup> in an hour. Anything above this amount is burned for energy or converted to glycogen or fat. <sup>43</sup> up to 1.2鈥1.6 grams per kilogram of body weight.聽

Foods that are high in protein in <sup>44</sup> include:聽

5. Eat mindfully

People who eat mindfully and without distraction consume fewer calories. In a meta-analysis of 24 studies, researchers found that distraction caused greater food intake during the meal. However, eating while distracted has a <sup>45</sup> later. Not remembering how much you ate may lead to overeating later in the day.聽

Researchers from the Center for Nutrition Research at the University of Paris followed 14,400 men and 49,228 women. They found that women with a <sup>46</sup> were less likely to be overweight or obese. Men with higher mindfulness while eating had lower odds of being obese.聽

In a systematic review of 19 studies, researchers found that participants who <sup>47</sup>. However, they stressed that further research is needed to explore the connection between mindfulness and weight loss.

When adults with type 2 diabetes were taught mindfulness techniques, researchers found that diabetes self-management and mindful eating training both led to &濒迟;蝉耻辫&驳迟;48&濒迟;/蝉耻辫&驳迟;.听

Strategies to practice mindful eating:聽

  • Remove distractions when you are eating
  • Be aware of how much you eat, what you eat, and why you are eating
  • Recognize sensations of hunger and fullness
  • Enjoy your food by taking the time to sense, taste, and savor it
  • Look at your portion sizes before and as you eat
  • Manage stress and emotions to minimize the risk of emotional eating
  • Keep a food diary or use a smartphone app to track food intake
  • Before eating, verify you鈥檙e eating to satiate hunger, and not choosing to eat as a result of boredom, seeing or smelling food, or because you saw someone else eating聽
  • Eat slowly and enjoy the process
  • Let hunger guide when you eat, not convenience or a schedule.聽

6. Watch portion sizes

Portion sizes are deceiving, and they are increasing. The average (49) more per day than in the 1970s. Eating more outside the home and larger portion sizes are both contributing factors to this increase in daily calorie consumption.聽

Portion Sizes At Restaurants

When researchers sampled foods sold at takeout restaurants, fast-food outlets, and family-style restaurants, every sample (except white bread) exceeded, sometimes by a lot, FDA and USDA recommended portion sizes. French fries, hamburgers, and soda are all two to five times<sup>49</sup> their original size!聽

Here are some of their results<sup>49</sup>:

No doubt the portion sizes have increased, but what does that mean in terms of how much we eat? Americans expect to see a larger portion size, as it has become 鈥渘ormal.鈥澛

In a 2014 meta-analysis of studies exploring the relationship between portion size and caloric intake, researchers found:聽

<ul role="list"><li>Nine studies explored the portion size of snacks. In a third of these studies, when portion size was increased by 100%, adults ate <sup>50</sup> to <sup>51</sup> snack food.</li><li>When nutrition experts were given a larger bowl, they served themselves <sup>52</sup> without even being aware of it.</li><li>When participants were served M&Ms for free consumption while watching television, they were served one of three options: a medium portion in a small container, a medium portion in a large container, or a large portion in a large container. Regardless of portion size, those who ate from the , or 199 calories<sup>53</sup>.</li></ul>

At home, you can eat from smaller plates and bowls. In a restaurant, you can request that half your meal be boxed up before they serve it.聽

Exercise in the Future

While exercise definitely has its benefits, you can lose weight by watching your diet.聽

In the future, you may be able to get the benefits of exercise without moving a muscle. <sup>54</sup> have identified signals in the body that may help them develop a supplement that would provide the benefits of exercise to people who cannot exercise. Their research focuses on exercise benefits for the eyes, but it may set the groundwork for other 鈥渆xercise pills.鈥 After all, the retina of the eye is the window to the brain.聽

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References

About the author

Leann Poston, MD, is a licensed physician in Ohio who holds an MBA and an M.Ed. She is a medical writer and educator who researches and writes about medicine, education, and healthcare administration.

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