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Drinking Water And Weight Loss


It is said that 60% of our bodies are made from water hence, it is responsible for a plethora of functions, be it regulating body temperature or flushing out body waste.

The major reason behind our body is so dependent on the water is because our cells, body compartments, and other body fluids like blood all require water to some extent.

Moreover, the kidneys play an important function in managing the level of water inside the body by amplifying or truncating the production of urine accordingly.

However, in states of water deprivation, the human body may not be able to survive more than a week.

In addition to helping you survive and ensuring the ideal functioning of the body system, the biggest perk of drinking more water could be to facilitate your weight loss journey.

However, the process is not just as simple as staying hydrated and losing weight. You should know how much water could help you in weight loss.

 In this article, we will explain all about drinking water and weight loss.

How Can Drinking Water Help You To Lose Weight?

Staying hydrated has been linked to supporting your weight loss journey since immemorial. 

Moreover, in the US, approximately 30 to 59% of the adults who try to lose weight may amplify their water consumption.

That might even substantiate the fact that augmenting your water consumption may help you in your weight loss process.

So here are certain reasons that could help you to know how increasing your water intake may support your weight loss journey.

But you should know that the medical community is still unsure about how much impact can consuming water have on weight loss.

  1. Natural Appetite Suppressant

    Generally, one of the major reasons behind your weight gain could be eating more and more. You will stop eating only when your stomach sends signals to the brain to do so.

    Due to this if you drink more water before meals, it could help to truncate your appetite.

    Water could take up the space in your empty stomach and lead to a feeling of fullness, hence reducing your appetite.

    Many times it could even happen that you may mistake thirst for hunger hence drinking a glass of water before your meals could help you to evade any unnecessary snacking.

    The fact that water acts as a natural appetite suppressant might even be substantiated by several studies. A study[1] was conducted on obese middle-aged women.

    These participants drank water before each meal and hence were able to lose 44% more weight as compared to the people who did not drink more water.

    Besides this, another study showed how if you drink water before breakfast, it could help to truncate the calories consumed during the meal by 13%.

  2. Removes Waste From The Body

    Another reason why water could help you to lose weight could be because it assists in removing the waste from your body.

    If your body is dehydrated, then you may not be able to correctly remove the waste in the form of feces and urine.

    Water is the main component through which your kidneys can function to their best extent.

    The kidneys can filter out the toxins and waste while retaining the essential electrolytes and nutrients with the help of water.

    However, in case your body is dehydrated, the kidneys may retain the fluid, resulting in constipation and hard or lumpy stools.

    Apart from this, water may also help resolve the digestive issues in your body like indigestion and diarrhea.

    On the other hand, if your body is dehydrated, then the waste could build up in the body, leading to tiredness and bloating.

    Bloating on the other hand may augment the weight on a person’s waist. Hence staying hydrated will help to remove waste that could add a few pounds to your body.

    Staying hydrated and maintaining a proper water intake could benefit your health in several ways, as per this study[2].

  3. Burn More Calories

    Resting energy expenditure also referred to as the number of calories you burn for the basic physiological processes, could heighten when you drink water.

    Moreover, the positive results for weight loss may even amplify in case your water is cold.

    When you drink cold water, your body might use more calories to keep the water warm and hence maintain the ideal temperature of your body.

    Moreover, cold water may even help to increase your body’s resting energy expenditure.

    The fact that staying hydrated may help you to burn more calories was suggested by a study conducted in 2014.

    This study[3] was conducted on 14 people who drank 500 milliliters of cold and room temperature water.

    These people experienced an amplification in their energy expenditure and burned 2 to 3% more calories after 90 minutes of drinking water.

    Apart from this, another study was conducted on overweight and obese children.

    This study found out how drinking cold water could help with a 25% increase in resting energy expenditure.

  4. Truncated Calorie Intake

    Amplifying your consumption of water may even reduce the overall liquid calorie intake.

    This could happen because if you do not drink water you may replace it with other substitutes like drinking soda, sweetened coffee, tea, or juice.

    Some people might even consume alcoholic beverages and sports drinks, which may accumulate liquid calories in their bodies.

    On the other hand, if you replace high-calorie drinks with water or other no-calorie drinks like herbal tea, then you may face certain weight loss benefits.

    An observational study[4] showed that people who drink mostly water may have a 9% lower calorie consumption on average, which accounts for around 200 kcal.

    Moreover, drinking water may also hinder long-term weight gain. You could substantiate this fact from a study conducted in 2015.

    During this study[5], some obese participants drank 250 milliliters of water for a 24-week weight loss program after their lunch each day.

    Due to this, they lost approximately 13.6% more weight as compared to the people who drank 250ML of beverages after lunch.

  5. To Burn Fat

    Staying hydrated could even help your body to burn fat, because, in the absence of water, the body may not be able to properly metabolize the carbohydrates and stored fat.

    The process of metabolizing fat is referred to as lipolysis, which includes the presence of water.

    As the name itself suggests, this step occurs only when the triglycerides or fats in the body interact with the water molecules. Both these substances together create fatty acids and glycerol.

    This absence of water in your body may limit your lipolysis process and hence truncate the amount of fat burnt by the body.

    According to a mini-review conducted in 2016[6], amplification of water consumption in animals led to an increase in the lipolysis process and hence magnified the level of loss of fat in animals.

  6. Supporting The Workout

    As you must already know, one of the most crucial aspects of losing weight is to work out regularly. On the other hand, one of the most crucial aspects[7] of working out is to stay hydrated.

    Water could bolster the activity during exercise by helping different organs like the heart, lungs, and even muscles, connective tissues, and joints to move correctly.

    Moreover, if you are well hydrated, it might truncate the risk of things that may serve as an obstacle to your good workouts like fatigue and muscle cramps.

    So to evade dehydration, you may always drink water before, during, and even after your workouts. Keep water close in hand, especially during summer and hot conditions.

Amount Of Water To Lose Weight

Do you think there is a specific quantity of water that you could drink to facilitate your weight loss process? 

Though there is no standard guideline or recommendation for water consumption per day, different people may drink different quantities of water.

There are a plethora of factors that may modify your water consumption like your body size, age, health status, exposure to the sun, temperature, activity level, and humidity.

Moreover, different scientific authorities may suggest[8] different quantities of daily water consumption. 

However, the National Academy of Medicine in the United States suggested the daily water consumption for men and women as follows-

  • 3700 ML for adult men in a single day
  • 2700 ML for adult women in a single day.

Let's Wrap It Up!

Thus, these are the different reasons why drinking more water could help you in your weight loss journey.

Due to this, just like other lifestyle changes, you may incorporate water breaks in your daily schedule so that you can adhere to this practice and do not forget to drink water and stay hydrated.

Other tips that could help you to augment your water consumption include carrying a reusable water bottle anywhere you go and drinking extra water during physical activity or when it is very sunny, warm, or humid.

There are also different vegetables and fruits with high water content like watermelon, berries, lettuce, cucumbers, tomatoes, etc.

So if you are following a weight loss journey, staying hydrated could be on top of your list. Good luck!


Working4Health prefers using primary and verified references. We have strict sourcing guidelines and our primary references include peer-reviewed research, academic, and medical institution studies.

  1. Vinu Ashok Kumar Vij and Anjali S. Joshi Effect of excessive water intake on body weight, body mass index, body fat, and appetite of overweight female participants J Nat Sci Biol Med. 2014 Jul-Dec; 5(2): 340–344.doi: 10.4103/0976-9668.136180
  2. Barry M. Popkin, Kristen E. D’Anci, and Irwin H. Rosenberg Water, Hydration and Health Nutr Rev. 2010 Aug; 68(8): 439–458.doi: 10.1111/j.1753-4887.2010.00304.x
  3. Michael Boschmann, Jochen Steiniger, Uta Hille, et al. Water-induced thermogenesis J Clin Endocrinol Metab. 2003 Dec;88(12):6015-9. doi: 10.1210/jc.2003-030780. Available from: https://pubmed.ncbi.nlm.nih.gov/14671205/
  4. Melissa C. Daniels and Barry M. Popkin The impact of water intake on energy intake and weight status: a systematic review Nutr Rev. 2010 Sep; 68(9): 505–521.doi: 10.1111/j.1753-4887.2010.00311.x
  5. Ji Na Jeong Effect of Pre-meal Water Consumption on Energy Intake and Satiety in Non-obese Young Adults Clin Nutr Res. 2018 Oct; 7(4): 291–296.Published online 2018 Oct 31. doi: 10.7762/cnr.2018.7.4.291
  6. Simon N. Thornton Increased Hydration Can Be Associated with Weight Loss Front Nutr. 2016; 3: 18.Published online 2016 Jun 10. doi: 10.3389/fnut.2016.00018
  7. Carl V. Gisolfi 5Water Requirements During Exercise in the Heat Available from: https://www.ncbi.nlm.nih.gov/books/NBK236237/
  8. Arend-Jan Meinders, Arend E Meinders [How much water do we really need to drink?] Ned Tijdschr Geneeskd. 2010;154:A1757. Available from: https://pubmed.ncbi.nlm.nih.gov/20356431/

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