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Home » Intermittent Fasting: A Comprehensive Review For Beginners.

Intermittent Fasting: A Comprehensive Review For Beginners.


Are you curious about intermittent fasting but don’t know where to start? Look no further! In this comprehensive review, we will explore the world of intermittent fasting and provide you with all the essential information you need as a beginner. Whether you’re interested in weight loss, improved metabolic health, or simply looking for a healthier lifestyle, intermittent fasting may be the perfect solution for you. So, grab a cup of tea, sit back, and let’s embark on this exciting journey together!

Intermittent Fasting: A Comprehensive Review For Beginners.

What is Intermittent Fasting?

Definition of Intermittent Fasting

Intermittent fasting is an eating pattern that cycles between periods of fasting and eating. It does not specify which foods to eat or restrict calorie intake, but rather focuses on when you should eat. It is a popular approach for weight loss and improving overall health.

Different Types of Intermittent Fasting

There are several different methods of intermittent fasting, each with its own fasting and eating windows. Some common types include the 16/8 method, 5:2 diet, alternate day fasting, eat-stop-eat, and warrior diet. Each method has its own unique approach and benefits.

Benefits of Intermittent Fasting

Weight Loss

Intermittent fasting can be an effective tool for weight loss. By limiting the time window for eating, it can lead to a reduction in calorie intake and promote fat burning. Additionally, fasting has been shown to increase metabolism and improve insulin sensitivity, both of which can aid in weight loss.

Improved Insulin Sensitivity

Intermittent fasting has been found to improve insulin sensitivity, which is crucial for maintaining stable blood sugar levels. Improved insulin sensitivity can reduce the risk of developing type 2 diabetes and metabolic syndrome, as well as promote overall health and energy balance.

Enhanced Autophagy and Cellular Repair

During fasting periods, the body undergoes a process called autophagy, which is the natural process of cellular waste removal and recycling. Intermittent fasting has been found to enhance autophagy, leading to improved cellular repair and potentially reducing the risk of chronic diseases such as cancer and neurodegenerative disorders.

Reduced Inflammation

Chronic inflammation is linked to various health issues, including obesity, heart disease, and certain cancers. Intermittent fasting has been shown to reduce markers of inflammation in the body, which can contribute to improved overall health and a lower risk of chronic diseases.

Improved Brain Health

Some studies have suggested that intermittent fasting may have benefits for brain health. It has been found to increase the production of a protein called brain-derived neurotrophic factor (BDNF), which plays a role in promoting the growth and survival of nerve cells. Higher levels of BDNF are associated with improved cognitive function and a reduced risk of neurodegenerative diseases.

Downsides and Considerations

Hunger and Discomfort

One of the main downsides of intermittent fasting is the potential for hunger and discomfort during fasting periods, especially when starting out. It can take time for your body to adjust to the new eating pattern, and some individuals may find it challenging to adhere to the fasting window.

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Potential Nutrient Deficiencies

Restricting the time window for eating may make it more difficult to consume a balanced diet and obtain all necessary nutrients. It is important to ensure that you are still getting a variety of nutrient-dense foods during meal times to prevent any nutrient deficiencies.

Impact on Social Life

Intermittent fasting may also have an impact on your social life, as it can be challenging to coordinate meals and social activities around fasting windows. However, with proper planning and communication, it is possible to find a balance between your fasting schedule and social engagements.

Not Suitable for Everyone

Intermittent fasting may not be suitable for everyone, especially those with certain medical conditions or individuals who are pregnant, breastfeeding, or underweight. It is important to consult with a healthcare professional before starting any new diet or eating pattern to ensure it is appropriate for your specific needs and circumstances.

How to Start Intermittent Fasting

Choosing the Right Intermittent Fasting Method

When starting intermittent fasting, it is important to choose a method that aligns with your lifestyle and goals. Consider factors such as the length of fasting and eating windows, as well as any potential challenges or preferences you may have. Experiment with different methods and find the one that works best for you.

Gradual Approach vs. Cold Turkey

Some people may find it easier to ease into intermittent fasting gradually, by gradually increasing the duration of fasting periods over time. Others may prefer to dive in headfirst and start with a more aggressive fasting approach. Choose the approach that feels most comfortable and sustainable for you.

Building a Fasting Schedule

Once you have chosen an intermittent fasting method, it is helpful to build a fasting schedule. This involves determining the length of fasting and eating windows, as well as deciding on the specific times that work best for you. Consistency is key, so aim to stick to your fasting schedule as closely as possible.

Intermittent Fasting: A Comprehensive Review For Beginners.

Fasting Methods

16/8 Method

The 16/8 method involves fasting for 16 hours and limiting your eating window to 8 hours each day. This can be achieved by skipping breakfast and consuming all meals within the designated eating window. It is a popular method for beginners and can be easily integrated into most lifestyles.

5:2 Diet

The 5:2 diet involves fasting for two non-consecutive days of the week and eating normally for the remaining five days. On fasting days, caloric intake is limited to around 500-600 calories. This method allows for flexibility but may require more planning and preparation.

Alternate Day Fasting

Alternate day fasting involves fasting every other day, with one day of regular eating followed by a day of fasting. On fasting days, limited calorie intake or complete fasting is practiced. This method may be more challenging for some individuals but can be effective for weight loss.


The eat-stop-eat method involves fasting for 24 hours once or twice a week. This can be achieved by fasting from dinner one day until dinner the following day. It is important to stay hydrated and consume adequate nutrients in the non-fasting days to ensure overall health and well-being.

Warrior Diet

The warrior diet involves fasting for 20 hours each day and eating one large meal at night. During the fasting period, small amounts of raw vegetables and fruits, as well as light protein sources, are allowed. This method may be more challenging for some individuals due to the longer fasting period.

Maintaining a Balanced Diet during Intermittent Fasting

Choosing Nutrient-Dense Foods

During eating windows, it is important to focus on consuming nutrient-dense foods that provide essential vitamins, minerals, and antioxidants. Include a variety of fruits and vegetables, whole grains, lean proteins, and healthy fats to ensure a well-rounded and balanced diet.

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Ensuring Sufficient Protein Intake

Protein is an important nutrient for maintaining muscle mass and promoting satiety during intermittent fasting. Make sure to include adequate protein sources such as lean meats, poultry, fish, eggs, legumes, and dairy products in your meals. Aim for around 20-30 grams of protein per meal.

Staying Hydrated

Proper hydration is essential during intermittent fasting. Drink an adequate amount of water throughout the day to stay hydrated and support overall health. Herbal tea and black coffee can also be consumed during fasting periods, but be mindful of adding any sweeteners or creamers that may break the fast.


If you have concerns about meeting your nutritional needs during intermittent fasting, you may consider taking dietary supplements. Consult with a healthcare professional to determine if any specific supplements would be beneficial for you, based on your individual needs and goals.

Intermittent Fasting: A Comprehensive Review For Beginners.

Exercise and Intermittent Fasting

Exercising in the Fasted State

Exercising in the fasted state can have its benefits, as it can enhance fat burning and improve insulin sensitivity. However, it is important to listen to your body and choose activities that you enjoy and feel comfortable with. If you prefer to exercise during your eating window, that is perfectly fine as well.

Types of Exercises to Consider

Incorporate a variety of exercises into your routine to maximize the benefits of intermittent fasting. Both cardiovascular exercises, such as walking, running, or cycling, and strength training exercises, such as weightlifting or bodyweight exercises, can be beneficial. Find activities that you enjoy and that suit your fitness level.

Timing of Workouts

The timing of your workouts can vary depending on your personal preferences and schedule. Some individuals may find it beneficial to exercise in the morning during their fasting period, while others may prefer to exercise in the evening after breaking their fast. Experiment with different workout timings and find what works best for you.

Commonly Asked Questions

Can I Drink Water During Fasting?

Yes, staying hydrated is important during fasting. Water is the best choice and can be consumed freely throughout the fasting period. Herbal tea and black coffee can also be consumed in moderation, but be cautious of adding any sweeteners or creamers that may break the fast.

Will Intermittent Fasting Slow Down My Metabolism?

There is no evidence to suggest that intermittent fasting slows down metabolism. In fact, some studies have shown that it may actually increase metabolism and promote fat burning. However, it is important to maintain a balanced diet and lifestyle to ensure overall metabolic health.

What Can I Consume During Fasting?

During fasting periods, it is recommended to consume only water, herbal tea, black coffee, or other non-caloric beverages. Avoid consuming any food or drinks that contain calories, as this can break the fasting state and disrupt the benefits of intermittent fasting.

Can I Still Eat Out or Socialize While Fasting?

Yes, you can still eat out or socialize while fasting. It may require some planning and communication to coordinate your eating window with social activities. Opt for healthier options when dining out and be mindful of portion sizes. Remember, intermittent fasting is meant to be a flexible lifestyle approach that can be adapted to various situations.

Tips for Success

Listen to Your Body

Pay attention to how your body feels during fasting and eating periods. If you feel excessively hungry or lightheaded, it may be a sign that you need to adjust your fasting window or meal sizes. Listen to your body’s cues and make adjustments as needed.

Stay Consistent

Consistency is key with intermittent fasting. Stick to your chosen fasting schedule as closely as possible, even on weekends or holidays. This will help your body establish a routine and maximize the potential benefits of intermittent fasting.

Plan Ahead

Plan your meals and snacks in advance to ensure you have a well-balanced diet during eating windows. Prepare healthy meals and snacks that are easy to grab and go, especially for busy days. This will help you stay on track and avoid making impulsive food choices.

Seek Professional Guidance

If you have any concerns or medical conditions, it is always a good idea to consult with a healthcare professional before starting any new diet or eating pattern. They can provide personalized guidance and ensure that intermittent fasting is appropriate for your individual needs.


Intermittent fasting is a flexible and effective approach for weight loss and improving overall health. It offers a variety of benefits, including weight loss, improved insulin sensitivity, enhanced cellular repair, reduced inflammation, and improved brain health. While it may not be suitable for everyone and can come with some challenges, with proper planning and guidance, intermittent fasting can be a sustainable and enjoyable lifestyle approach. Listen to your body, stay consistent, plan ahead, and seek professional guidance to ensure a successful and beneficial intermittent fasting journey.

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