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Fasting for longevity – Can Fasting Help You Live Longer?

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What Is Fasting | Fasting & Longevity | 3 types of intermittent fasting | benefits of intermittent fasting | Drawbacks of intermittent fasting | Studies on Intermittent Fasting & Longevity | Who can do intermittent fasting

Fasting for Longevity – is this the fountain of youth? The popularity of intermittent fasting (IF) has increased as numerous studies have shown its many benefits. This pattern of eating, which involves alternating periods of eating with periods of fasting, has been shown to improve overall health and potentially extend lifespan.

From daily 16-hour fasts to the 5/2 diet, there are several different methods of intermittent fasting, but what exactly is it, and how does it relate to longevity? In this article, we will dive deeper into the world of intermittent fasting and explore the potential benefits it may have on longevity.

From the science behind it to the practical application, we’ll cover everything you need to know about intermittent fasting and its potential impact on your health and longevity.

So, whether you’re a seasoned pro or just starting to learn about intermittent fasting, this article is for you.

What Is What Is Intermittent Fasting??

Fasting is the practice of abstaining from food or certain types of food for a certain period of time. It is a popular practice that has been used for centuries for religious and spiritual reasons, as well as for health benefits.

How Does Fasting Affect the Body?

 Fasting triggers several changes in the body, including a decrease in insulin levels, which leads to an increase in the breakdown of fat for energy.

According to this fasting longevity study, Fasting has also been shown to promote the production of growth hormones, which can help to improve muscle mass, reduce fat, and improve overall health. While fasting has been proven to have many health benefits, the most popular type of fasting associated with longevity is Intermittent Fasting (IF).


What Is Intermittent Fasting?

Intermittent fasting (IF) is a dietary pattern where meals are structured around periods of fasting and eating. This type of fasting involves alternating between periods of no food intake and periods of consuming food in order to optimize health benefits.

It is becoming increasingly popular among people who want to live longer and healthier lives, as research shows it can have numerous positive impacts on our health. During a period of fasting, usually 12 to 16 hours a day, the body will switch from burning glucose for energy to burning fat.

This process is known as ketosis, which helps the body break down stored fat, improve metabolic health, reduce inflammation, and has the potential to help us live longer. During the fasting period, individuals should not consume any calorie-dense food or beverages. Water, tea, and black coffee are generally allowed. During the eating period, foods should be healthy and nutritious.

It is important to note that intermittent fasting does not require a severe calorie restriction; rather, it involves strategically timing meals to achieve maximum benefits. Fasting for longevity can be a great way to promote overall health and potentially extend lifespan.

How Does Intermittent Fasting Relate to Longevity?

Fasting for longevity is a growing trend in the health and wellness industry. The idea is that by restricting caloric intake, intermittent fasting can help you live longer.

Studies have suggested that by reducing the number of calories consumed, our bodies can enter a ‘starvation mode,’ activating certain cellular repair processes that can improve overall health and longevity.

This state of fasting helps our bodies to become more efficient at utilizing stored energy sources, resulting in improved metabolic health. Additionally, fasting can also reduce inflammation, balance hormones, and even reduce the risk of certain diseases like diabetes and cancer.

Another fasting longevity study from harvard, showed that lifespan can be increased through the use of intermittent fasting and adjustments to mitochondrial networks.

The three types of intermittent fasting widely studied in Humans

There are three main types of intermittent fasting that have been widely studied in humans, including alternate-day fasting, time-restricted feeding, and modified fasting regimens.

Research has shown promising results in terms of weight loss, improved metabolism, and reduced risk of chronic diseases. Despite its growing popularity, more research is still needed to fully understand the effects of intermittent fasting on human health and longevity.

1. Time-restricted feeding (TRF)

This type of intermittent fasting involves limiting food intake to specific hours of the day. For example, some people may choose to eat only during an 8-hour window, such as from 12 pm to 8 pm, and fast for the remaining 16 hours; that is known as the 16/8 intermittent fasting.

This type of fasting has been shown to improve weight loss, decrease insulin resistance, and lower the risk of chronic diseases such as type 2 diabetes and heart disease.

2.  Alternate-day fasting (ADF)

This type of intermittent fasting involves alternating between days of normal eating and days of calorie restriction or complete fasting. For example, an individual might normally eat on Monday, fast on Tuesday, normally eat on Wednesday, and so on.

This type of fasting has been shown to improve weight loss and improve blood markers of health such as insulin sensitivity and cholesterol levels.

3.  The modified fasting regimens (5:2 diet)

This type of intermittent fasting involves eating normally for five days a week and restricting calorie intake to 500-600 calories for the other two non-consecutive days. See the 5:2 Guide Here.

This type of fasting has been shown to improve weight loss, decrease insulin resistance, and lower the risk of chronic diseases such as type 2 diabetes and heart disease.

It is important to note that in all three types of intermittent fasting, adequate nutrient intake and calorie needs should be met during the eating period and should be supervised by healthcare professionals.


The Benefits of Intermittent Fasting

As mentioned earlier, fasting for longevity is becoming increasingly popular due to its many potential health benefits. Intermittent fasting has been studied for its potential to improve overall health, increase lifespan and provide other benefits. Some of the well-known benefits of Intermittent fasting are:

It Helps with Weight Loss and Insulin Resistance

One of the primary advantages of IF is its ability to help with weight loss. According to a study published in The New England Journal of Medicine , Daily calorie restriction is a proven primary weight-loss strategy for obese patients. IF can help reduce body fat and boost metabolism, which can lead to improved overall health.

Intermittent fasting has also been linked to lower inflammation, improved cholesterol levels, and increased insulin sensitivity. These benefits can all contribute to better overall health and longer life. Additionally, studies have suggested that IF may be beneficial for cognitive function, reducing stress, and improving mood. This can further contribute to better mental and physical health.

It Provides Protection Against Disease and Slows the Aging Process

Fasting for longevity may also help protect against disease and slow the aging process. Studies suggest that IF can reduce oxidative stress, which is associated with diseases such as cancer, Alzheimer’s, and heart disease. Additionally, some scientific studies have indicated that IF could help slow down the aging process by increasing autophagy, a natural process that helps keep cells healthy and functioning properly. A detailed rundown of the benefits of intermittent fasting is here.

With its potential for weight loss, improved metabolic health, and protection against disease, fasting for longevity could be an effective way to promote a healthier lifestyle and potentially extend lifespan.

The Drawbacks of Intermittent Fasting

Fasting for longevity is not without drawbacks. Intermittent fasting can be difficult to maintain, as it requires a certain amount of dedication and discipline. For those who do not adhere strictly to their fasting schedule, the beneficial effects may be lessened.

Additionally, intermittent fasting can be dangerous for people with certain health conditions, such as diabetes or heart disease, or those who take certain medications. It is important to consult a doctor before beginning any kind of fasting program.

Other potential drawbacks to intermittent fasting include fatigue, headache, irritability, and feelings of hunger. It is important to listen to your body’s cues and adjust your fasting schedule accordingly if any of these side effects arise.

Furthermore, due to the nature of intermittent fasting, it may not be suitable for everyone looking to achieve longevity through fasting. Some individuals may benefit more from other dietary approaches.

Fasting for longevity

Studies Supporting the Effects of Intermittent Fasting On Longevity

Recent studies have shown that Intermittent Fasting can have a positive effect on longevity. Several clinical trials have found that fasting can help to extend lifespan, reduce inflammation, and boost immunity. Let’s take a brief look at some of the studies and what was reviewed in these studies.

Intermittent fasting improves markers of oxidative stress, a measure of longevity

Scientific studies have shown that cellular oxidative stress affects aging and is caused by an imbalance of free radicals and antioxidants in the body. Antioxidants neutralize the harmful effects of free radicals and can slow down the aging process.

A 2007 study showed that alternate-day fasting reduced oxidative stress markers and improved weight loss.

A 2018 study showed that early time-restricted feeding improved insulin sensitivity, blood pressure, and oxidative stress markers. However, more studies are needed to determine the full effects of IF on oxidative stress.

Intermittent fasting can protect humans from age-related diseases, according to two reviews

Two scientific reviews showed that intermittent fasting (IF) could protect against age-related diseases such as cardiovascular disease, diabetes, Alzheimer’s, and cancer.

Valter Longo, a leading longevity scientist, found in a 2017 review that IF improved aspects of these diseases in humans based on studies showing protection against type 2 diabetes and cardiovascular disease.

A second review two years later in the New England Journal of Medicine showed similar results, concluding that IF has broad-spectrum benefits for health conditions and age-related diseases.

Early time-restricted feeding positively impacts sirtuins and autophagy

A 2019 study found that eating within a restricted time frame (8 am to 2 pm) had a positive impact on blood glucose levels, sirtuins, and autophagy.

The study involved 11 overweight adults who followed the restricted time frame for 4 days and then followed a regular time frame (8 am to 8 pm) for 4 more days.

The study found that restricted time-frame eating improved glycemic control and increased the production of the longevity gene SIRT1 and the autophagy gene LC3A by 10% and 22%, respectively. These changes suggest that restricted time-frame eating may have anti-aging and longevity effects.

Intermittent fasting increases the survival rate

An abstract from 2019, appearing in the American Heart Association’s Circulation journal, studied the impact of intermittent fasting on longevity. This study found that long-term intermittent fasting (at least 5 years) was associated with a greater survival rate. The study followed 2,000 subjects aged 63-67 who underwent cardiac catheterizations and found that routine fasters had a 49% lower risk of death compared to non-fasters.

New adopters of fasting (less than 5 years) showed no survival benefit. Intermittent fasting may not be suitable for everyone, including those under 18, pregnant, breastfeeding, with eating disorders or taking certain medications. It is recommended to consult with a doctor or dietitian before starting.

Who Can Participate in Intermittent Fasting?

Intermittent fasting has become a popular health trend in recent years, with many looking to it to increase their longevity. The question of who can participate in intermittent fasting is complex and depends on several factors. In general, those who are looking to utilize fasting for longevity should check with their healthcare provider before attempting any fasting regimen.

Those who are considered to be at higher risk for health complications should avoid intermittent fasting, including pregnant women, people with diabetes, those with a history of disordered eating, or those with a history of eating disorders. Additionally, people with any existing medical condition should speak to a doctor before attempting intermittent fasting.

People who are generally healthy may be able to participate in intermittent fasting safely and potentially benefit from the practice’s purported longevity benefits. When engaging in intermittent fasting, it is important to be mindful of food choices and plan meals around nutrient-dense foods when possible.

For those interested in using fasting to live longer, it is important to discuss the potential risks and benefits with a healthcare provider before beginning an intermittent fasting regimen. Intermittent fasting may provide numerous health benefits, including the potential to increase lifespan. However, it is essential to ensure that such practices are safe and appropriate for each individual’s needs. You can work with professionals on intermittent fasting meal plans and 21-day weight loss challenges here.


In answering the question of  ‘fasting for longevity: can fasting help you live longer?,’ we have discussed a lot about fasting and longevity in this article.  Find answers to other questions about intermittent fasting at this article –  All about Intermittent Fasting in one place.

Intermittent fasting (IF) is a growing trend in the health and wellness industry that has been shown to have potential health benefits such as reducing inflammation, balancing hormones, and even reducing the risk of certain diseases. The idea behind fasting for longevity is that restricting caloric intake can help individuals live longer.

There are three main types of IF: time-restricted feeding, alternate-day fasting, and modified fasting regimens (5:2 diet). Despite its growing popularity, more research is needed to fully understand the effects of Intermittent fasting on human health and longevity.

Nevertheless, it is essential to note that in all types of Intermittent fasting, adequate nutrient intake and calorie needs should be met during the eating period and should be supervised by healthcare professionals.

I recommend starting here to learn more about these types of fasting which are the MOST popular, starting with 16/8 Fasting, click on these guides below to learn more:
16/8 Fasting Guide, 14/10 Fasting Guide18/6 Fasting GuideOne Meal a Day Guide.

Also need help fasting? Check out these Top 6 Fasting Mobile Apps we recommend to help you on your journey.

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If you have any concerns or questions about your health, you should always consult with a dietitian, physician or another health-care professional. Consult your physician before starting intermittent fasting, especially if you are pregnant, breastfeeding, have any medical condition, or are taking any medication. Read more here.