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11 Impressive Benefits Of Fasting



11 Impressive Benefits Of Fasting
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By Kiran Patil

The health benefits of fasting include detoxification, faster healing, radiant skin, and secretion of growth and anti-aging hormones. It is also good for the digestive system as it boosts metabolism, lowers cholesterol levels, and reduces appetite, thereby managing weight and obesity. It provides relief from epilepsy, arthritis, and other diseases.

What Is Fasting?

Fasting refers to refraining from either food, drink, or both at your own will for a definite span of time. It could be done partially for some particular food or as total abstention, in which no food or liquid is consumed for one or more days. Along with religious significance for some people, fasting is good for you because it offers a lot of health benefits if undertaken in a correct and a healthy manner.

Health Benefits of Fasting

If conducted in a guided manner, fasting has the following benefits:


When no food is consumed by the body, the body turns to the fat deposits for energy, which releases chemicals from the fatty reserves and results in the eradication of these chemicals through the organs. It has been well favored by Ayurvedic therapy for cleansing and correcting the imbalances in the body.

Mental Health

After fasting, the blood is filled with better levels of endorphins, which makes you more alert and provides you with a feeling of good mental health. Studies have also provided evidence of healthy aging of the brain, which is attributed to calorie restriction and intermittent fasting. The effects of fasting are considered similar to that of exercise.

Effective Chemotherapy

Studies have demonstrated that a change in the levels of glucose due to fasting proves beneficial for the effectiveness of chemotherapyperformed against tumors. Fasting for a defined period may stimulate changes related to the protection of body cells, and may be favorable for the patients suffering or undergoing tumor treatment.

Combats Obesity

Fasting has been in use to combat obesity for a long time. A study has demonstrated positive results with respect to average weekly weight lossthat occurred in the patients after fasting. It triggers the liver enzymes and breaks fat and cholesterol into essential bile acids, which stimulate the metabolism and convert the surplus fat into heat. It also helps you avoid overeating as it regulates the hunger hormone levels – ghrelin. Regular fasting has also shown to improve eating patterns over time.

Healthy Intestines

Fasting helps reverse the age-related decline in intestinal stem cell functioning. Studies say that during fasting, the cells break down fatty acids instead of glucose and this helps the cells become more regenerative.

Treats Epilepsy

Epilepsy refers to a brain disorder in which a person suffers from recurrent convulsions that can lead to a transformation in behavior. Fasting has been proven beneficial for patients suffering from epilepsy. Studies on this topic have shown positive results in terms of the frequency of seizures in such patients.

Cures Rheumatoid Arthritis

Rheumatoid arthritis is a chronic medical condition that causes inflammation of flexible joints, surrounding tissues, and organs. Under medical supervision, controlled fasting has shown significant results in the studies conducted. However, it has been recommended by medical professionals to proceed with a vegetarian diet thereafter.

Treats Pancreatitis

The pancreas plays an important role in producing digestive juices and releasing the hormones in the body, including insulin. When the pancreas becomes inflamed over a short span of time, it is known as pancreatitis. Along with intravenous feeding and fluid therapy, fasting has also been accepted as a treatment strategy for acute pancreatitis. Insulin regulation also prevents type-2 diabetes as the glucose levels are normalized.

Speeds Up Healing

Fasting also promotes the healing process in the body. When food is no longer present in the stomach, the body focuses on other vital functions like metabolic activity and the immune system, rather than digestion which is not necessary until the next meal. Research has shown significant development in the immune system of the intestines and overall health of the subject patients under medical supervision. Athletes are also encouraged to fast during training days, in order to shed excess fat and optimize muscle growth.

Skin Care

The mechanism of autophagy involves a synthesis and recycling of cellular components by degradation of unnecessary cells. It gets promoted during fasting. This leads to the production of healthier cells and tissues throughout the body, leading to healthier skin. It also aids in collagen production and acne treatment.

Releases Growth Hormones

Growth hormones stimulate growth and production of cells in the body. The production of such hormones also increases during fasting, resulting in the release of better growth and anti-aging hormones.

Protects Heart Health

Fasting influences the regulation of glucose and cardiovascular health. This has been demonstrated by various studies conducted in this regard, along with other health benefits including lowering blood pressure, body mass, triglycerides, and increasing insulin sensitivity and levels of HDL (good) cholesterol.

Pre or Post-operative Fasting

Doctors recommend short fasting, which is normally 2-8 hours, as groundwork for certain diagnostic investigations to obtain more accurate results. In case, the surgery involves the organs of the digestive system, fasting may be recommended before and after the surgery to ensure empty bowels. This helps to protect the lungs from getting any content from the stomach during anesthesia. Based on the studies that have been conducted in this regard, medical professionals recommend that consumption is limited to fluids such as water, clear fluids, and fruit juices before surgery.

Repair and Rejuvenation

The body gets an opportunity to repair itself as a result of a slower metabolic rate, better defense mechanisms, and protein production during fasting. This leads to improved mental well-being, clarity, improved blood circulation, and a feeling of rejuvenation. Scientists believe that all of these effects contribute to a slowdown in aging and an extended life expectancy. Fasting also boosts stem cell’s regenerative capacity.

Side Effects of Fasting

Although fasting has been believed to be a natural and effective method of helping the body get rid of harmful toxins, it is also vital to be well aware of its possible side effects and hitches.


During fasting, the body continues losing salt and water through sweat, urine, and breathing. If the body isn’t hydrated before the fast, it may become dehydrated easily. If such symptoms occur, it is vital to drink water mixed with salt and sugar to compensate for the loss.


Headaches while fasting could be caused due to hunger, restlessness, or the sudden absence of caffeine or nicotine in the body. Drinking plenty of fluids, eating in moderation, and avoiding direct sunlight may help prevent headaches.


Diabetics should be very cautious and should always discuss fasting with a medical professional before starting. They are strongly recommended to monitor their blood glucose since a drop in blood sugar can prove to be fatal and may lead to fainting. In case of dizziness or sweating, it is advisable to consume fluids containing sugar as soon as possible.


Heartburn can be caused as a result of the production of stomach acids, which otherwise aid indigestion. Avoiding greasy, spicy foods and eating in moderation can help control belching, vomiting, and heartburn. Reduction in caffeine consumption and smoking, as well as sleeping with your head raised can also prove beneficial.

Staying active, being hydrated and eating healthy foods (depending on the type of fast) rich in fiber helps keep constipation at bay during fasting. Other common side effects include fatigue, muscle cramps, dizziness, lightheadedness, chills, or cold due to the change in metabolism, along with an unpleasant odor as the body gets rid of harmful toxins through the skin and sweat. However, this is the body’s natural mechanism to cleanse and repair itself, while expelling any unhealthy cells. It is always advisable to discuss with a medical professional before considering fasting as a therapeutic option for any reason.

Who Should Not Fast?

In spite of the multidimensional benefits and acceptable side effects, fasting can prove dangerous in certain medical conditions. It is not recommended for people already suffering from malnutrition, diabetes, and chronic ailments like gout, advanced stages of cancer, and cardiac arrhythmia, in which the heart beats irregularly.  It is also not advised for pregnant or nursing women.

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