top of page

Losing Weight by Fasting: A Comprehensive Guide by BODY ARK



Are you looking to shed some pounds and improve your overall health? You might have heard about intermittent fasting, a popular diet trend that weight loss involves alternating periods of eating and fasting. At BODY ARK, we believe in providing you with the most accurate and up-to-date information to help you achieve your and weight loss fitness goals. In this blog post, we'll explore the concept of losing weight by an intermittent fasting pattern, its benefits, and how to do it safely and effectively. Remember before starting any form of calorie restriction speak to a qualified health provider. See Also: Online Personal Trainer/ Online Fitness Coach

What is Intermittent Fasting and Losing Weight by Fasting?

It is not a diet in the traditional sense, but rather an eating and dietary pattern itself with time restricted eating/ time restricted feeding. It focuses on when you eat rather than what you eat. The idea is to cycle between periods of healthy eating, and extended periods of fasting. This practice has been around for centuries and is rooted in many traditional eating patterns.





There are several methods of intermittent fasting, including:

  • Alternate-day fasting: This involves fasting every other day. Some versions allow for about 500 calories on the fasting days and higher calories on non fasting days.

  • 5:2 fasting: With this method, you eat normally five days a week and restrict your food restrictions calorie intake to 500–600 calories on two non-consecutive days to create a caloric restriction in efforts to reduce body fat and improve potential health benefits as an effective weight maintenance/ weight loss tool.



  • Time-restricted eating: This involves consuming all your daily calories within a specific window, often 8 hours, and fasting for the remaining 16 hours which is a typical time restricted eating routine to help shift fat mass.

How Does Intermittent Fasting Work?

When you fast, your body undergoes several changes on a cellular and molecular level. For instance, during fasting periods your body adjusts hormone levels to make stored body fat more accessible. Your cells also initiate important repair processes and change the expression of genes.

It works by extending the period when your body has burned through the calories consumed during your last meal and begins burning fat. It's a way of scheduling your meals and eating periods so that you get the most out of them. It involves eating that's less about what you're eating and more about when you're eating and avoiding continuous calorie restriction by giving yourself a daily calorie restriction.



Benefits of Intermittent Fasting

Research suggests that it can have powerful benefits for your body and brain short term and not thought of as a continuous diets. These many benefits include:

  • Weight Loss: As mentioned earlier, It can help you lose weight and belly fat, without having to consciously restrict calories.

  • Insulin resistance: can reduce insulin resistance, lowering blood sugar levels. fasting glucose/ fasting insulin.

  • Inflammation: Some studies show reductions in markers of inflammation, a key driver of many chronic diseases.

  • Heart Health: It may reduce LDL cholesterol, blood triglycerides, inflammatory markers, blood sugar, and insulin resistance — all risk factors for heart disease.

  • Brain Health: Increases a brain hormone called BDNF and may aid the growth of new nerve cells. It may also protect against Alzheimer's disease.

Is Intermittent Fasting Safe?

  • While the protocol has been shown to be effective for weight loss, it's not for everyone. It's not recommended for people under 18, those with a history of disordered eating, pregnant or breastfeeding women, or those with certain medical conditions. Always consult with a healthcare professional before starting intermittent diets or any new diet plan. Note that you should seek out advice and guidance from a medical professional medical advice if you have a history of eating disorders. Also another factor to consider would be the loss of lean muscle mass. Lean muscle mass can be reduced because of the lower calorie intake and not having enough protein in your dietary pattern and no if you just skip breakfast that is not fasting for weight loss benefits of intermittent fasting. There are also other cardiovascular risk factors that may occur so again that is why it may be wise to seek a medical professional first. There are issues that fasting could help with also such as:

  • Chronic disease

  • metabolic diseases

  • improve blood sugar levels

  • improve blood pressure

  • reducing fat stores

  • improving lean mass

  • improve sleeping patterns and change your dietary pattern to a new eating pattern

  • can reduce the need for calorie counting

  • improved body composition

Getting Started with Intermittent Fasting

If you're considering giving it a try, start by choosing the method that fits best with your schedule body weight, lifestyle, and health goals. It's important to eat healthy foods during your eating window and stay hydrated throughout the day. Remember, it's not just about losing weight but also about promoting long-term health and well-being. So in simple terms it is 'time restricted feeding' in aid to eat fewer calories.




Frequently Asked Questions About Intermittent fasting for weight loss: How much weight can I lose by fasting?

The amount of weight you can lose by fasting depends on various factors, including the duration of the fast, your current weight, and your diet and lifestyle. Some people may lose up to 1-2 pounds per week.




  1. How much weight can you lose fasting for 7 days? A 7-day fast should only be done under medical supervision. Weight loss during such a fast can be significant, but it's often not sustainable, and it's not a healthy or safe method of weight loss.

  2. Can you lose belly fat by fasting? Yes, fasting can help you lose belly fat. It's a way to reduce your overall body fat, and belly fat is likely to be part of the fat you lose. A recent study suggests fasting can cause short-term damage. People following this program had the capacity to reduce body mass and body fat while reducing inflammation in their lungs.

  3. How much weight can I lose by fasting for 2 days? This can vary widely, but some people might lose around 2-4 pounds. However, much of this weight can be water weight and may be regained when you resume your regular eating pattern. Most women can just lose water weight and generally lose about 1.5 to 1 kilogram of weight per day of fasting. During the first two or four weeks of their fasting a man loses about one kilogram of bodyweight each.

  4. Is fasting really a good way to lose weight? Fasting can be an effective way to lose weight for some people, but it's not suitable for everyone. It's important to approach it in a healthy, sustainable way and consider other lifestyle factors like regular physical activity and a balanced diet. The study shows that alternate-day fasting can help reduce weight. Fasting can affect metabolism and improve blood glucose regulation and physical stress response. all in all intermittent fasting works for weight loss.

  5. How long should you fast for weight loss? This depends on the type of fasting you're doing. For intermittent fasting, popular methods involve fasting for 16 hours a day or fasting for 24 hours twice a week or fast for 12 hours daily. A man has to decide and follow an average daily fast for 12 hours. According to a recent study fasting for at least 10 hours can increase metabolism and increase blood ketone levels circulating in the bloodstream. That will encourage weight loss.

  6. Why is 16 hours the magic number for fasting? The 16/8 method of intermittent fasting involves fasting every day for 14-16 hours and restricting your daily eating window to 8-10 hours. Within the eating window, you can fit in 2, 3, or more meals. This method is popular because it's easy to follow, and many people find it to be an effective way to lose weight and improve health. The benefit of 16-hour fasts is comparable to 12 hours. This includes weight loss as well as helping to repair damaged cells, reducing insulin resistance, and improving sleep.

  7. How much weight can you lose in a month with intermittent fasting? Weight loss rates can vary, but some people might lose 4-8 pounds in a month. This can depend on factors like the length of the fasting period and what's eaten during the eating window.

  8. How much weight can I lose in a week with intermittent fasting( How much weight can I lose by fasting?)? This can vary, but on average, people might lose 1-2 pounds per week with intermittent fasting. When evaluating how quickly weight is lost, produces weight loss in the range of 0.55–1.16 g (0.4–0.9 kg). The waist circumference of women dropped from 5% to 4%, implying the loss. In one study weight was reduced by around 4-6 kilograms within 1-2 days of starting. But it wasn't just fat since it also contained water and muscle glycogen. It will give you a boost to your diet.

  9. Is it better to fast for 12 or 16 hours? Both can be effective, but many people find that a 16-hour fast fits better with their schedule and offers more benefits in terms of weight loss and metabolic health. Researchers say the number of individuals who have gallstones has increased significantly. A gallbladder removal operation would also be needed. Longi says consuming for a 12-hour period is probably the easiest option for most, he added.

  10. Is fasting a good way to lose weight? Fasting can be an effective tool for weight loss for some people, but it's not a solution for everyone and should be done in a healthy and balanced way. Research indicates an equivalent fast of alternate days for reducing weight. Fasting also affects metabolic processes which could help reduce inflammation and increase blood sugar and physical stress levels and fasting is not just about skipping meals over eight hour period and is in a way a standard calorie restriction method.

  11. How much weight can you lose by fasting? The amount of weight you can lose by fasting depends on various factors, including the duration of the fast, your current weight, and your diet and lifestyle. Some people may lose up to 1-2 pounds per week with intermittent fasting. Alternatively Intermittent fasting can cause weight reduction by approximately 1 lb or 1 kilogram per week (22). Interestingly, people also noticed 47% lower waist circumferences suggesting weight loss.

  12. Is fasting good way to lose fat? Yes, fasting can help you lose body fat. It's a way to reduce your overall body fat, and belly fat is likely to be part of the fat you lose. Several studies indicate that fasting alternated day can reduce fat. Fasting also impacts metabolism and may help reduce inflammation and blood sugar regulation.

  13. Does a 7 day fast burn fat? A 7-day fast can lead to weight loss, including some body fat. However, such long fasts should only be undertaken under medical supervision. It's also important to note that a significant portion of the weight lost during a 7-day fast may be water weight, which is typically regained when you resume eating. Studies show that prolonged fasting like water fasting can help reduce fat, weight, stress and increase ketogenic production.

  14. What is the best fasting time for fat loss? The best fasting time for fat loss can vary depending on individual factors. However, many people find the 16/8 method of intermittent fasting to be effective. This involves fasting for 16 hours each day and eating all meals within an 8-hour window. Fast 12 hours daily. Fasting is thought to have a positive effect in lowering blood glucose levels and lowering cholesterol in the blood. It will help you to reduce weight. This intermittent fasting plan is advisable for beginners.

  15. What is the fastest way to lose weight by fasting? The fastest way to lose weight by fasting is likely to combine it with other healthy lifestyle habits. This includes eating nutritious foods during your eating windows, maintaining a regular exercise routine, and ensuring you get adequate sleep.

  16. How much weight can I lose if I fast for 3 days? A 3-day fast can lead to significant weight loss, but much of it may be water weight, which can be regained once you resume eating. It's also important to note that extended fasts should be undertaken under medical supervision.

  17. Is there a free fasting diet plan? There are many resources online that provide free guidance on how to start and maintain a fasting diet plan. However, it's important to choose a plan that's safe, sustainable, and suitable for your individual health needs.

  18. How do I start intermittent fasting for free? Starting intermittent fasting doesn't require any special equipment or subscriptions. It's simply about adjusting the timing of your meals. You can find plenty of free resources and guides online to help you get started.

  19. What are the best free fasting apps? There are several free fasting apps that can help you track your fasting and eating windows. Some popular ones include Zero, Fastient, and Life Fasting Tracker.

  20. What is the free intermittent fasting timetable? A common intermittent fasting timetable is the 16/8 method, where you fast for 16 hours and eat within an 8-hour window. However, the specific timetable can vary depending on the fasting method you choose.

  21. Is fasting a good way of losing weight? Fasting can be an effective tool for weight loss for some people, but it's not a solution for everyone and should be done in a healthy and balanced way. Research indicates alternate daily fasting can be nearly as effective as regular low-calorie food. Fasting can be helpful in increasing blood sugar control and promoting physical stress.

  22. How long should you fast to lose weight? This depends on the type of fasting you're doing. For intermittent fasting, popular methods involve fasting for 16 hours a day or fasting for 24 hours twice a week.

  23. How long do you have to fast before you start burning fat? Fat burning usually starts around 12hrs after fasting, which increases from 16-28hrs after fasting.


Online Personal Training: A Scientific Approach to Weight Loss

In the modern world, where time is a precious commodity, online personal training has emerged as a convenient and effective solution for those seeking to lose weight and improve their fitness. One such service that stands out for its scientific and educated approach is Body Ark.

What is Body Ark?

Body Ark is a leading online personal training service based in the UK. It offers a comprehensive approach to fitness and health, focusing not just on physical workouts but also on mental health and nutrition. The service is led by a certified online fitness coach who designs exercise programs tailored to the needs of each client.


How Does Body Ark Work?

Body Ark's approach to fitness is holistic. It begins with identifying your fitness goals and designing an exercise program that fits your needs. The online fitness coach guides you through every exercise and workout, ensuring that you are performing each movement correctly and safely.

In addition to the workout plans, Body Ark also provides tailored nutrition plans and weekly check-ins to keep you on track. This comprehensive approach ensures that you are not just working out but also eating right and maintaining a positive mindset, which is crucial for achieving your fitness goals.


Why Choose Body Ark?

Choosing Body Ark for your online personal training needs comes with numerous benefits. Here are a few reasons why Body Ark stands out:


Personalised Attention: Body Ark provides personalised attention to each client. The workouts and nutrition plans are tailored to your specific needs and goals.


  1. Professional Approach: Body Ark's approach to fitness is professional and science-based. The workouts and nutrition plans are designed based on scientific research and proven methods.

  2. Accountability: With regular check-ins and 1-1 coaching sessions, Body Ark ensures that you stay dedicated to your fitness goals.

  3. Convenience: As an online service, Body Ark allows you to train at your own pace and in the comfort of your own home.

  4. Mental Health Focus: Body Ark understands that a positive mindset is crucial for achieving fitness goals. Therefore, it also focuses on improving your mental health and keeping you motivated throughout your fitness journey.

Start Your Fitness Journey with Body Ark

If you're ready to start your fitness journey and achieve your weight loss goals, Body Ark is here to help. With its scientific and educated approach, personalised attention, and professional guidance, Body Ark can help you transform your body and mind. Contact Body Ark today for a free phone consultation and discover how online personal training can help you achieve your fitness goals.


Additional FAQs

  1. Does fasting help lose belly fat? Yes, fasting can help you lose belly fat. It's a way to reduce your overall body fat, and belly fat is likely to be part of the fat you lose.

  2. How long do you have to fast before you start burning fat? After about 8-12 hours of fasting, your body enters a state of ketosis and starts to burn fat for energy.

  3. Does fasting really work for weight loss? Yes, fasting can be an effective tool for weight loss when done correctly and combined with a healthy diet and lifestyle. Research suggests alternate-day fasting can reduce body weight. Fasting also influences body metabolic systems that can help reduce inflammation in the bloodstream, regulate blood pressure and regulate stress responses.

  4. How long is it safe to fast? The length of a safe fast can vary depending on the individual and the type of fast. Some people safely fast for 16-24 hours as part of an intermittent fasting plan. Longer fasts should be done under medical supervision. It would appear to be safe to eat for 12 hours then fast for 12 hours. The eating habits are common for those who have records long lifespan.

  5. Is fasting actually good for you? Fasting has been shown to have several health benefits, including weight loss, improved metabolic health, and potentially even a longer lifespan. However, it's not suitable for everyone, and some people may experience negative side effects.

  6. Is fasting a good way to lose weight? Yes, for some people, fasting can be an effective method for weight loss. It's important to approach it in a balanced and healthy way, and it's always a good idea to consult with a healthcare professional before starting a new diet regimen. Increasing fasting on alternate days is more effective than normal diets to help you lose weight. Fasting also affects metabolism and helps to control inflammation.

  7. How much weight can you lose on a 3-day water diet? A 3-day water fast can lead to significant weight loss, but much of it may be water weight, which can be regained once you resume eating. It's also important to note that extended fasts should be undertaken under medical supervision.

  8. Why does intermittent fasting not work for some? Intermittent fasting may not work for some people due to various reasons. These can include not eating balanced meals during eating windows, not fasting for enough hours, or simply because their bodies don't respond to fasting as others might.

  9. Does everyone lose weight with intermittent fasting? Not everyone will lose weight with intermittent fasting. The effectiveness can vary greatly from person to person, depending on factors like their overall diet, how long they fast, and their individual metabolism. What is being researched? The study was conducted by the American Institute for Health Research and Medicine. It has been found in all studies that a range of 4 to 334 subjects were followed over two to 104 weeks.

  10. Why am I not losing weight on 16 8 fasting? If you're not losing weight on the 16/8 method of intermittent fasting, it could be because you're consuming too many calories during your eating window, you're not eating balanced meals, or this method simply doesn't work well with your specific metabolism. During fasting shorter times the body no longer needs the energy to enter ketosis or ketoacidosis. So this does not reduce fat and does not cause significant weight loss. In one study, a 24-hour fast period may increase fat loss in a person who has lost weight.

  11. How much weight will I lose in a week with intermittent fasting? This can vary, but on average, people might lose 1-2 pounds per week with intermittent fasting.

  12. How to lose 2kg in a week with intermittent fasting? Losing 2kg in a week is a steep goal and may not be healthy or sustainable. A more reasonable aim is to lose 1-2 pounds (approximately 0.5-1 kg) per week.

  13. How to do intermittent fasting correctly to lose weight? To do intermittent fasting correctly, choose an eating window that works for you, consume balanced meals during that window, and drink plenty of water. It's also important to listen to your body and adjust your plan as needed. Three common methods for fasting intermittently are: Typically small meals are less than 500 calories. Eat a healthy diet four times a day, fast two nights a week. Eat daily for at least eight hours per day. In some cases skip breakfast, but eat lunch at 11am and dinner at 7pm.

  14. Does fasting burn belly fat? Yes, fasting can help burn belly fat by reducing your overall body fat percentage.

  15. Can you lose body fat by intermittent fasting? Yes, intermittent fasting can help you lose body fat. It's a way to reduce your overall body fat, and belly fat is likely to be part of the fat you lose.

  16. How much fat can you lose in a month with intermittent fasting? This can vary widely, but some people might lose around 4-8 pounds (approximately 1.8-3.6 kg) in a month with intermittent fasting. This can depend on factors like the length of the fasting period and what's eaten during the eating window.

  17. What stage of intermittent fasting do you burn fat? After about 8-12 hours of fasting, your body enters a state of ketosis and starts to burn fat for energy. The burning starts after a few days of rest and continues for about a few weeks.

  18. How long should I fast for weight loss? This depends on the type of fasting you're doing. For intermittent fasting, popular methods involve fasting for 16 hours a day or fasting for 24 hours twice a week.

  19. Do you lose belly fat by fasting? Yes, fasting can help you lose belly fat. It's a way to reduce your overall body fat, and belly fat is likely to be part of the fat you lose. Fasting is effective in lowering blood sugar by about 0.75 kg per week (24). Those with waist circumferences decreased by 4% to 7 %, indicating the loss of belly fat.

  20. How long do you have to fast before you start burning fat? After about 8-12 hours of fasting, your body enters a state of ketosis and starts to burn fat for energy.

  21. Does fasting really work for weight loss? Yes, fasting can be an effective tool for weight loss when done correctly and combined with a healthy diet and lifestyle.

  22. How long is it safe to fast? The length of a safe fast can vary depending on the individual and the type of fast. Some people safely fast for 16-24 hours as part of an intermittent fasting plan. Longer fasts should be done under medical supervision. Yes but lack in protein may slow your metabolism and affect your metabolic health.

  23. Is fasting actually good for you? Fasting has been shown to have several health benefits, including weight loss, improved metabolic health, and potentially even a longer lifespan. However, it's not suitable for everyone, and some people may experience negative side effects.

  24. Is fasting a good way to lose weight? Yes, for some people, fasting can be an effective method for weight loss and weight management. It's important to approach it in a balanced and healthy way, and it's always a good idea to consult with a healthcare professional before starting a new diet regimen.

  25. How much weight can you lose on a 3-day water diet? A 3-day water fast can lead to significant weight loss, but much of it may be water weight, which can be regained once you resume eating. It's also important to note that extended fasts should be undertaken under medical supervision.

  26. Why does intermittent fasting not work for some? Intermittent fasting may not work for some people due to various reasons. These can include not eating balanced meals during eating windows, not fasting for enough hours, or simply because their bodies don't respond to fasting as others might.

  27. Does everyone lose weight with intermittent fasting? Not everyone will lose weight with intermittent fasting. The effectiveness can vary greatly from person to person, depending on factors like their overall diet, how long they fast, and their individual metabolism. Here are some relevant studies from google Scholar about intermittent fasting if you wish to go further:

33 views0 comments
Post: Blog2_Post
bottom of page