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Can You Lose Weight by Not Eating? The Dangers of Starvation Diets

By Dr. Shubham Pandey +2 more

Key Highlights: 

  • Starvation diets are not a sustainable or healthy method for weight loss. 
  • The body usually tends to slow down metabolism and regain lost weight after a starvation diet. 
  • Starvation may lead to various health complications, such as compromised bodily functions, nutrient deficiencies, and mental health issues. 
  • Adopting a well-balanced diet and engaging in regular exercise can be more effective and safe weight loss strategies. 
  • Intermittent fasting is different from starvation and can potentially offer some weight loss benefits without adverse effects. 

Introduction 

Shedding weight is many people’s aim. Many diets promise amazing results. A hot one is starving oneself to lose pounds. But does this work safely? Let’s look at weight loss myths and the harm that may occur from starvation diets. We’ll offer options for weight management that are suggested to be healthier. So, be ready to discover safe ways to reach your weight goals. 

can you lose weight by not eating

Did you know?

  • Weight loss outcomes are influenced by personal values, preferences, and motivations. source: nutrition.gov
  • Eating less fat and exercising more were associated with losing at least 5% of body weight. source: PMC
  • Modest weight loss of 5% leads to health benefits. source: PMC
  • Weight loss outcomes vary greatly among individuals due to genetics and baseline physiology. source: nutrition.gov
  • Keeping track of behaviors and progress increases the likelihood of successful weight loss. source: nutrition.gov

The Misconception of Starvation Diets for Weight Loss 

The idea of starving to lose weight comes from one belief. Cut calories, and shed weight faster. Quick weight loss might occur, but it can harm long-term health. 

The difference between starvation and intermittent fasting 

Starvation diets and intermittent fasting aren’t the same. They’ve both gained fame as weight loss tactics. But they’re different in how they work and their health outcomes. 

  • Starvation diets mean cutting down calories for a long period. This may put health at risk and can lead to nutrient shortage. 
  • Intermittent fasting means eating and fasting at planned times. It can help balance the daily calorie intake, thus aiding weight loss. 

When you choose nutritious foods, you tend to lose weight. You should avoid eating non-nutritious foods like sugar, pastries, soft drinks, etc. if you want to lose weight.

Dr. Rajeev Singh, BAMS

Short-term weight loss vs. long-term health consequences 

At first, starvation diets may help you lose weight quickly. But the long-term effects might harm overall health. 

  • Your body adjusts to less calorie intake by slowing metabolism. This can make future weight loss slower. 
  • Once you stop starving and eat normally, you can gain back weight fast. You might even gain extra weight. 
  • Long-term starvation can harm health. It is said to result in a weak immune system, hormone problems, and nutrient lack. 
     

The table below helps to understand these points better: 

Starvation Diets Intermittent Fasting 
Long periods of low-calorie intake Eating and fasting at set times 
Quick initial weight loss Steady approach to weight loss 
Harmful long-term health effects Possible health benefits 

The Effects of Starvation Diets on the Body 

Cutting calories and nutrients potentially hurts many body functions. Overall health may suffer too. The proposed health hazards of starvation diets include: 

1. Metabolism slowdown 

Starving slows down metabolism and hinders weight loss. 

2. The body’s adaptive response to calorie restriction 

Less calorie intake can lower the metabolic rate. The body will possibly burn fewer resting calories. Weight loss efforts may stall or even backslide. 

3. Regaining weight after a starvation diet 

Once you quit starving and eat normally, you tend to regain lost weight. Slow metabolism and increased hunger to restore energy are the possible causes. 

4. Compromised bodily functions 

Long-term starvation can affect body functions. This may result in physical and mental health issues. 

5. Impact on the brain and cognitive abilities 

Less calorie intake possibly harms crucial brain activities. It may hurt memory and focus, however further studies are needed to confirm this effect 

6. Weakened immune system 

Starvation may lead to a weak immune system, possibly due to a deficiency of essential nutrients. This exposes the body to diseases and can hurt overall health. 

7. Hormonal imbalances 

Calorie cuts may lead to unstable hormones. This potentially affects menstruation, sex drive, and stress control, but evidence-based proof is needed 

8. Nutrient deficiencies 

Vitamins and minerals keep the body healthy. They aid cell energy production, bone health, and immune systems. Not getting enough daily nutrients leads to health risks. 

9. Effects of prolonged deficiency on the body 

Long-term nutrient lack may lead to health issues like anemia, weak bones, and poor immunity. Lack of essential fatty acids can potentially harm skin and cognitive health. 

In my opinion, when you consume fewer calories, you will tend to lose weight. Though selective eating is healthy for maintaining health, not eating completely is definitely not advisable. The human body needs fuel in the form of food to carry out its daily functions. Therefore, no eating will lead to falling sick, fainting and eventually loss of health.

Dr. Siddharth Gupta, MD

Let’s look at the key points in a table: 

Possible Negative Effects of Starvation Diets Examples 
Metabolism slowdown Slower calorie burn, stalled weight loss 
Compromised bodily functions Poor brain function, weak immune system, hormonal imbalance 
Nutrient deficiencies Anemia, weak bones, poor skin health 

Mental Health Consequences of Starvation Diets 

Apart from physical damage, starving may affect mental health too. 

1. Increased risk of eating disorders 

Starvation diets can lead to disordered eating and conditions like anorexia or bulimia. 

  • Anorexia and bulimia 

Anorexia is an intense fear of putting on weight that leads to restricted eating. Bulimia involves binge eating and then actions like vomiting or excessive exercise to compensate. 

  • Emotional toll of disordered eating patterns 

Unhealthy eating habits can impact physical health and emotional well-being. It may lead to feelings of guilt, shame, and reduced self-esteem. 

2. Negative impact on mood and mental wellbeing 

Long-term starvation potentially affects mental health, leading to increased anxiety and depression. 

  • Anxiety and depression 

A lack of nourishment can disturb brain’s chemical balance. This may trigger signs of anxiety and depression. 

  • Relationship between nutrient deficiencies and mental health 

Deficiency in certain nutrients like vitamin B12 or omega-3 fats is proposed to increase mental disorder risk. Eating a balanced diet can improve mood and well-being. 

The table below summarizes the main points: 

Mental Health Consequences of Starvation Diets Examples 
Increased risk of eating disorders Anorexia, bulimia 
Negative impact on mood and mental wellbeing Anxiety, depression 

Healthy and Sustainable Weight Loss Strategies 

If you want to lose weight, it’s best to opt for healthy, lasting weight-loss plans instead of starving. 

1. Balanced diets and portion control 

An effective weight-loss plan starts with a good diet and smart portion control. 

2. Macronutrient and micronutrient balance 

Well-rounded meals give needed vitamins, minerals, proteins, fats, and carbs. They potentially ensure energy and health. 

3. Mindful eating techniques 

Mindful eating allows you to focus on your food and enjoy it. It may help avoid overeating and make meals enjoyable. 

4. Incorporating regular exercise 

Exercise is a part of any healthy weight loss plan. 

5. Cardiovascular and strength training 

Mix heart rate-raising and muscle-building exercises for fitness. They may help burn calories and boost metabolism. 

The importance of physical activity for overall health 

Apart from weight loss, regular exercise is suggested to improve mental health, sleep, and immunity. 

Safe and effective weight loss methods 

There are safe ways to lose weight without starving. 

Intermittent fasting vs. starvation diets 

Intermittent fasting possibly leads to steady weight loss minus the harm of starving. 

Science-backed strategies 

Know the roles of nutrition and exercise in weight loss. Use proven methods to reach weight goals. 

However, if you suffer from any medical condition, it’s best to consult your healthcare provider and know what type of exercise and diet will be most suitable for you to achieve your goal. 

Conclusion 

This post brings forward the possible health risks that starving for weight loss may lead to; it may hurt both your body and mind. Instead, healthy eating, exercise, and tested methods like intermittent fasting potentially help weight loss without harming health. Knowing the difference between starving and healthy weight-loss practices can help you reach your weight goals safely. 

Here’s the key message: Rather than harmful, fleeting starvation diets, focus on balancing your lifestyle with good nutrition, exercise, and self-care. This broad approach can aid in meeting your weight loss goals. Plus, it helps improve overall health and emotional well-being. 

Frequently Asked Questions (FAQs) 

How much weight can you lose by not eating? 

You might lose weight fast with severe calorie cuts. But this may be short-lived and lead to health issues. Instead, balanced nutrition and regular exercise offer a healthier way to lose weight. 

Can I lose belly fat by not eating? 

Starving is not a safe or sound way to lose belly fat. Instead, eating balanced meals, exercising regularly, and adopting healthier weight-loss strategies can help you achieve sustainable goals. 

What happens after 2 days of not eating? 

Two days of not eating may lead to ketosis. Your body begins to use stored fat for energy. However, long-term fasting and serious calorie cuts can lead to unhealthy side effects and health problems. 

How much weight do you lose by not eating for 24 hours? 

The amount of weight you lose from a 24-hour fast varies. It depends on factors like metabolism, initial weight, and activity levels. But, this is not a long-term solution for weight loss. 

Are there any healthy alternatives to starvation diets? 

Yes, the healthier choices for starving include a balanced diet, regular exercise, portion awareness, mindful eating, and intermittent fasting as explained in this post. 

References: 

  1. National Health Service (NHS). We’re here for you [Internet]. [cited 2023 Sep 19]. Available from: https://www.nhs.uk/Livewell/Healthyramadan/Pages/fastingandhealth.aspx 
  1. National Center for Biotechnology Information (NCBI). INTERMITTENT FASTING AND HUMAN METABOLIC HEALTH [Internet]. [cited 2023 Sep 19]. Available from: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4516560 
  1. ScienceDirect. ! There was a problem providing the content you requested [Internet]. [cited 2023 Sep 19]. Available from: http://www.sciencedirect.com/science/article/pii/S1568163716302513 
  1. National Center for Biotechnology Information (NCBI). Energy metabolism in feasting and fasting [Internet]. [cited 2023 Sep 19]. Available from: https://www.ncbi.nlm.nih.gov/pubmed/371355 
  1. PubMed. The Effectiveness of Intermittent Fasting to Reduce Body Mass Index and Glucose Metabolism: A Systematic Review and Meta-Analysis [Internet]. [cited 2023 Sep 19]. Available from: https://pubmed.ncbi.nlm.nih.gov/31601019 
  1. PubMed. Beneficial Effects of Time-Restricted Eating on Metabolic Diseases: A Systemic Review and Meta-Analysis [Internet]. [cited 2023 Sep 19]. Available from: https://pubmed.ncbi.nlm.nih.gov/32365676 
  1. National Center for Biotechnology Information (NCBI). Intermittent Fasting: Is the Wait Worth the Weight? [Internet]. [cited 2023 Sep 19]. Available from: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5959807 
  1. PubMed. The effect of rate of weight loss on long-term weight regain in adults with overweight and obesity [Internet]. [cited 2023 Sep 19]. Available from: https://pubmed.ncbi.nlm.nih.gov/26813524 
  1. PubMed. Effectiveness of a Low-Calorie Diet for Liver Volume Reduction Prior to Bariatric Surgery: a Systematic Review [Internet]. [cited 2023 Sep 19]. Available from: https://pubmed.ncbi.nlm.nih.gov/33140292 
  1. National Center for Biotechnology Information (NCBI). 6Very-low-calorie diets [Internet]. [cited 2023 Sep 19]. Available from: https://www.ncbi.nlm.nih.gov/books/NBK311324 
  1. National Center for Biotechnology Information (NCBI). Changes in Energy Expenditure with Weight Gain and Weight Loss in Humans [Internet]. [cited 2023 Sep 19]. Available from: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5097076 
  1. National Center for Biotechnology Information (NCBI). Metabolic adaptation to weight loss: implications for the athlete [Internet]. [cited 2023 Sep 19]. Available from: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3943438 
  1. PubMed. Physiology of weight regain: Lessons from the classic Minnesota Starvation Experiment on human body composition regulation [Internet]. [cited 2023 Sep 19]. Available from: https://pubmed.ncbi.nlm.nih.gov/33543573 
  1. PubMed. Persistent metabolic adaptation 6 years after “The Biggest Loser” competition [Internet]. [cited 2023 Sep 19]. Available from: https://pubmed.ncbi.nlm.nih.gov/27136388 
  1. PubMed. Metabolic adaptation is an illusion, only present when participants are in negative energy balance [Internet]. [cited 2023 Sep 19]. Available from: https://pubmed.ncbi.nlm.nih.gov/32844188 
  1. National Center for Biotechnology Information (NCBI). Metabolic adaptation is not a major barrier to weight-loss maintenance [Internet]. [cited 2023 Sep 19]. Available from: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7458773 
  1. National Center for Biotechnology Information (NCBI). The absence of evidence is no evidence for the absence of the phenomenon [Internet]. [cited 2023 Sep 19]. Available from: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7458766 
  1. National Center for Biotechnology Information (NCBI). Metabolic adaptations to weight loss [Internet]. [cited 2023 Sep 19]. Available from: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6086582 
  1. PubMed. Metabolic adaptation is not observed after 8 weeks of overfeeding but energy expenditure variability is associated with weight recovery [Internet]. [cited 2023 Sep 19]. Available from: https://pubmed.ncbi.nlm.nih.gov/31204775 
  1. National Center for Biotechnology Information (NCBI). Calories [Internet]. [cited 2023 Sep 19]. Available from: https://www.ncbi.nlm.nih.gov/books/NBK499909 
  1. National Center for Biotechnology Information (NCBI). Caloric Restriction in Humans: Impact on Physiological, Psychological, and Behavioral Outcomes [Internet]. [cited 2023 Sep 19]. Available from: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3014770 
  1. PubMed. Starvation physiology: reviewing the different strategies animals use to survive a common challenge [Internet]. [cited 2023 Sep 19]. Available from: https://pubmed.ncbi.nlm.nih.gov/20060056 
  1. PubMed. Eating Disorders in Primary Care: Diagnosis and Management [Internet]. [cited 2023 Sep 19]. Available from: https://pubmed.ncbi.nlm.nih.gov/33382560 
  1. National Center for Biotechnology Information (NCBI). Current approach to eating disorders: a clinical update [Internet]. [cited 2023 Sep 19]. Available from: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7003934 
  1. National Center for Biotechnology Information (NCBI). Anorexia nervosa [Internet]. [cited 2023 Sep 19]. Available from: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1857759 
  1. PubMed. Predictors of dieting and disordered eating behaviors from adolescence to young adulthood [Internet]. [cited 2023 Sep 19]. Available from: https://pubmed.ncbi.nlm.nih.gov/24925491 
  1. National Center for Biotechnology Information (NCBI). Dynamic Energy Balance: An Integrated Framework for Discussing Diet and Physical Activity in Obesity Prevention—Is it More than Eating Less and Exercising More? [Internet]. [cited 2023 Sep 19]. Available from: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5579698 
  1. PubMed. Ultra-Processed Diets Cause Excess Calorie Intake and Weight Gain: An Inpatient Randomized Controlled Trial of Ad Libitum Food Intake [Internet]. [cited 2023 Sep 19]. Available from: https://pubmed.ncbi.nlm.nih.gov/31105044 
  1. National Center for Biotechnology Information (NCBI). Maintenance of lost weight and long-term management of obesity [Internet]. [cited 2023 Sep 19]. Available from: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5764193 
  1. National Center for Biotechnology Information (NCBI). Defining the Optimal Dietary Approach for Safe, Effective and Sustainable Weight Loss in Overweight and Obese Adults [Internet]. [cited 2023 Sep 19]. Available from: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6163457 
  1. PubMed. The Effects of Exercise and Physical Activity on Weight Loss and Maintenance [Internet]. [cited 2023 Sep 19]. Available from: https://pubmed.ncbi.nlm.nih.gov/30003901 
  1. National Center for Biotechnology Information (NCBI). Exercise Preserves Lean Mass and Performance during Severe Energy Deficit: The Role of Exercise Volume and Dietary Protein Content [Internet]. [cited 2023 Sep 19]. Available from: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5522839 
  1. National Center for Biotechnology Information (NCBI). Preserving Healthy Muscle during Weight Loss 1, 2, 3 [Internet]. [cited 2023 Sep 19]. Available from: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5421125 
  1. National Center for Biotechnology Information (NCBI). The Influence of the Gut Microbiome on Obesity in Adults and the Role of Probiotics, Prebiotics, and Synbiotics for Weight Loss [Internet]. [cited 2023 Sep 19]. Available from: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7333005 
  1. New England Journal of Medicine (NEJM). The Body-Mass Index of Twins Who Have Been Reared Apart [Internet]. [cited 2023 Sep 19]. Available from: https://www.nejm.org/doi/full/10.1056/nejm199005243222102 
  1. National Center for Biotechnology Information (NCBI). Muscle tissue changes with aging [Internet]. [cited 2023 Sep 19]. Available from: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2804956 
  1. ScienceDirect. ! There was a problem providing the content you requested [Internet]. [cited 2023 Sep 19]. Available from: https://www.sciencedirect.com/science/article/pii/S0195666322002276 
  1. National Center for Biotechnology Information (NCBI). Physical Activity Patterns in the National Weight Control Registry [Internet]. [cited 2023 Sep 19]. Available from: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4578963 
  1. National Center for Biotechnology Information (NCBI). The effects of intermittent or continuous energy restriction on weight loss and metabolic disease risk markers: a randomized trial in young overweight women [Internet]. [cited 2023 Sep 19]. Available from: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3017674 
  1. National Center for Biotechnology Information (NCBI). Alternate day fasting for weight loss in normal weight and overweight subjects: a randomized controlled trial [Internet]. [cited 2023 Sep 19]. Available from: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3833266 
  1. National Center for Biotechnology Information (NCBI). The effects of modified alternate-day fasting diet on weight loss and CAD risk factors in overweight and obese women [Internet]. [cited 2023 Sep 19]. Available from: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3598220 
  1. National Center for Biotechnology Information (NCBI). Mobile Phone Apps to Promote Weight Loss and Increase Physical Activity: A Systematic Review and Meta-Analysis [Internet]. [cited 2023 Sep 19]. Available from: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4704965 
  1. National Center for Biotechnology Information (NCBI). Self-Monitoring in Weight Loss: A Systematic Review of the Literature [Internet]. [cited 2023 Sep 19]. Available from: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3268700 
  1. National Center for Biotechnology Information (NCBI). Reduced Reward-driven Eating Accounts for the Impact of a Mindfulness-Based Diet and Exercise Intervention on Weight Loss: Data from the SHINE Randomized Controlled Trial [Internet]. [cited 2023 Sep 19]. Available from: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4799744 
  1. National Center for Biotechnology Information (NCBI). The addition of a protein-rich breakfast and its effects on acute appetite control and food intake in ‘breakfast-skipping’ adolescents [Internet]. [cited 2023 Sep 19]. Available from: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4263815 
  1. British Medical Journal (BMJ). Dietary sugars and body weight: systematic review and meta-analyses of randomized controlled trials and cohort studies [Internet]. [cited 2023 Sep 19]. Available from: https://www.bmj.com/content/346/bmj.e7492.long 
  1. National Center for Biotechnology Information (NCBI). Sugar-Sweetened and Artificially-Sweetened Beverages in Relation to Obesity Risk 1, 2, 3 [Internet]. [cited 2023 Sep 19]. Available from: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4224219 
  1. National Center for Biotechnology Information (NCBI). A Large Prospective Investigation of Sleep Duration, Weight Change, and Obesity in the NIH-AARP Diet and Health Study Cohort [Internet]. [cited 2023 Sep 19]. Available from: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3842900 
  1. National Center for Biotechnology Information (NCBI). Implications of Sleep Restriction and Recovery on Metabolic Outcomes [Internet]. [cited 2023 Sep 19]. Available from: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5393445 
  1. National Center for Biotechnology Information (NCBI). Influence of Sleep Deprivation and Circadian Misalignment on Cortisol, Inflammatory Markers, and Cytokine Balance [Internet]. [cited 2023 Sep 19]. Available from: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5401766 
  1. National Center for Biotechnology Information (NCBI). Cortisol dysregulation in obesity-related metabolic disorders [Internet]. [cited 2023 Sep 19]. Available from: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4517681 
  1. National Center for Biotechnology Information (NCBI). The effectiveness of a stress-management intervention program in the management of overweight and obesity in childhood and adolescence [Internet]. [cited 2023 Sep 19]. Available from: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4996635 
  1. National Center for Biotechnology Information (NCBI). Modulation of the gut microbiota by nutrients with prebiotic properties: consequences for host health in the context of obesity and metabolic syndrome [Internet]. [cited 2023

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