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19/Oct/2022

You may have seen posts on social media about the benefits of fasting and how it can help improve immunity, but what does the science say? Is there any truth to these claims? Let’s take a closer look.
There are many different types of fasting diets, but the most common are intermittent fasting, alternate-day fasting, prolonged fasting and fast-mimicking. Some people fast for religious reasons, while others do it for health reasons. Let’s now examine some of the different types of fasting protocols.

Intermittent Fasting

Intermittent fasting is a type of fasting diet where you alternate between periods of eating and not eating, usually for a set number of hours each day.
One popular version of this diet is known as the 16:8 fasting to eating ratio, which involves fasting for 16 hours every day and then consuming all of your food during the remaining 8-hour window. This type of fasting has been shown to have several health benefits, including improved insulin sensitivity, fat loss, and increased longevity.

Alternate Day Fasting

Alternate day fasting is a type of fasting diet in which you alternate between periods of eating and not eating. During the fasting period, you typically consume a very low number of calories, usually less than 500 per day. Some people may choose to fast for 24 hours at a time, while others might fast for two days in a row before returning to normal eating patterns.
There are several potential benefits to this type of diet, including weight loss, improved blood sugar control, and increased longevity. However, there are also some potential risks associated with alternate day fasting, such as nutritional deficiencies and difficulty adhering to the diet over the long term.

Prolonged Fasting

Prolonged fasting is an alternative type of fasting diet that is designed to allow the body to enter into a state of ketosis, a metabolic state in which fat becomes the primary energy source instead of carbohydrates.
Unlike other forms of fasting where the specific timeframe for fasting may vary, prolonged fasting typically involves fasting for 3-5 days at a time with periods of normal eating in between. During this time, people may experience side effects like fatigue, lightheadedness, and hunger pangs.
However, proponents of prolonged fasting claim that this type of fast can help promote weight loss by effectively killing off certain cells in the body that are responsible for storing excess fat. Additionally, some research suggests that prolonged fasting may have other health benefits like improved insulin sensitivity and reduction in inflammation.

Fast Mimicking

The fast mimicking diet is a type of fasting diet that involves consuming specific foods and nutrients in order to mimic the effects of fasting. This approach is typically done over the course of 5 days, during which time people consume a low-calorie diet that is high in nutrients such as vitamins, minerals, and healthy fats. The goal of this type of fast is to trigger certain biological changes that are typically seen during periods of fasting, such as increased insulin sensitivity, reduced inflammation, and enhanced cellular repair.
While there haven’t been many large-scale studies examining the health benefits of fast mimicking diets, early research suggests that they may have a variety of positive effects on health and longevity.

Fasting and Immunity

There is some evidence to suggest that fasting can help boost immunity. One study found that intermittent fasting increased the production of white blood cells, which are your body’s first line of defense against infection. Another study found that alternate-day fasting improved markers of inflammation, which is thought to be involved in the development of some chronic diseases. Fasting also promotes a disease modifying process called autophagy.

Autophagy

Autophagy is a cellular process where the body breaks down damaged or unnecessary parts of cells in order to clear out harmful waste products and repair any damage. This process can be triggered by fasting, which has been shown to increase levels of autophagy throughout the body, helping to protect against disease and promote good health.
Studies have found that intermittent fasting can increase levels of certain proteins involved in the regulation of autophagy, while alternate-day fasting has been shown to induce autophagy even more effectively.
Additionally, researchers believe that fasting may help stimulate the production of stem cells, which are able to replace old or damaged cell tissues and potentially contribute to improved healing and recovery.

Overall, there is strong evidence that fasting can trigger autophagy in various ways, which may help boost immunity and prevent the development of chronic diseases.

Fasting Risks

It’s important to note that fasting is not for everyone. If you have a medical condition or are taking medication, please consult with your healthcare provider before starting any type of fasting diet. Fasting can also be dangerous if not done correctly. For example, if you don’t eat enough calories or nutrients, you may experience fatigue, irritability, and difficulty concentrating. You may also be at risk for dehydration if you are not drinking enough fluids.

Conclusion

So, should you start fasting to improve your immunity? Personally, fasting is the first thing I do when I feel a cold or flu coming on. I have found that this practice dramatically reduces symptoms and duration of illness. As you can see there is some research to support fasting as a natural immune system booster. It is important to note that fasting is not for everyone and can be dangerous if not done correctly. If you’re thinking about starting a fasting diet, please consult with your healthcare provider first.

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12/Sep/2017

Intermittent fasting is a different way of thinking about eating.

I’m suggesting that the majority of people have been eating too much and too often. I’m suggesting that breakfast is not the most important meal of the day. By following a few simple guidelines my readers can  loose weight, feel great and be healthier than ever before. The guidelines are:

 

  1. “6 to 8 and feel great”
  2. “Eat what you need”
  3. “Respect your food, respect yourself”

 

6 to 8 and feel great

Everyday eat within a 6 to 8 hour time frame. If you eat breakfast at 7:00am then your last meal of the day should not be later than 3:00pm. If you eat lunch at 12:00pm then your next and last meal should be no later than 8:00pm. In the first scenario you are basically skipping dinner and in the second scenario you are skipping breakfast. Water, tea, and even coffee are allowed outside of the 6-8 hour allotted time frame as long as there is no added calories, i.e. sugar, milk and or cream. There is also no snacking outside of your 6-8 hour window.

Now let me tell you why and how intermittent fasting works. Immediately after eating, a hormone in your body called insulin rises. Insulin tells your body to burn carbohydrates (sugar) for energy and to store whatever hasn’t been used in your liver and fat cells. This process continues for approximately 4 hours after eating. After 4 hours insulin drops and your body begins to dip into stored sugar and fat reserves for energy; or in other words that’s when you start burning fat.

It’s common practice for most people to eat 3 times a day with snacks in between, this means that we almost never dip into our fat stores. Therefore you would have to do some intensive daily exercise or eat incredibly small portions to loose weight. By following the 6-8 rule; you can almost be certain that you will be burning fat for approximately 10-12 hours per day. The only thing keeping you from shedding excess pounds is by being excessive with portion size and calorie intake, which brings us to the next guideline “eat what you need”.

 

Eat what you need

This guideline basically translates to portion control. One advantage about using the 6-8 methodology is that you will start becoming more in tune with your body and more aware of hunger and satiety. It is a great feeling to eat when you are actually hungry rather than out of habit. When we experience hunger, food is digested better. Hunger causes your gastrointestinal tract to prepare for food, including ample amounts of stomach acid aiding in the proper breakdown and absorption of nutrients.

Pay close attention to the point at which you no longer feel hunger and you are adequately satiated. Do not overeat. Eat to a point that you feel satisfied but not heavy and bloated.  You may notice that portion sizes become smaller. Now, because we are eating only two meals per day, it is also important that when we eat, we eat nutritious food and a variety of foods. Which brings us to the next guideline.

Respect your food; respect yourself

This guideline is about what kind of food you eat and how you eat it. As mentioned in the previous section, since we are essentially eating only twice per day, we want to be putting high quality foods into our body. Fresh, local and organic foods are what you want to focus on. The great thing about this diet is that it there are no restrictions on foods, it’s more about quality. Try to have meals that have a good quality protein, and complex carbohydrates such as veggies and whole-grains.

While making healthy choices is very important, it is also just as important not to stress over your food. Do your best to cook healthy while acknowledging that sometimes you will find yourself eating out, ordering fast food, and having desserts. Don’t beat yourself up about the choices you make, love whatever it is your eating, own it and do your best to eat healthy most of the time. Love your food and love yourself.

 

Final Thoughts

The guidelines I have purposed, although expressed in an original way, are not new concepts. Eating within a 6-8 hour window is also known as intermittent fasting; a lifestyle and medical intervention that shown to have a multitude of health benefits including lowering blood pressure, staving off cardiovascular disease and improving longevity. Presenting these ideas in away that is easy to incorporate into a daily routine can help to improve the lives of many people. I encourage you to try it out, give it a few weeks and let me know how you feel.

Fitness trainer Mike O’Donnell (2 meal mike) does a great job of further explaining intermittent fasting and how to easily incorporate it into your daily routine. I encourage you to visit his site http://www.theiflife.com


dr_shawn

Patient focused integrative health care. Utilizing effective natural approaches designed to be used alone or to compliment conventional medical care.


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