Tropical Weight Loss
Tropical Weight Loss
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Fasting has been associated with several health benefits, including weight loss, improved blood sugar control, decreased inflammation, and enhanced heart health. It might also offer protection against certain conditions like cancer and neurodegenerative disorders.
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Read More »Fasting has been associated with several health benefits, including weight loss, improved blood sugar control, decreased inflammation, and enhanced heart health. It might also offer protection against certain conditions like cancer and neurodegenerative disorders. Despite its recent surge in popularity, fasting is a practice that dates back centuries and plays a central role in many cultures and religions. Defined as the abstinence from all or some foods or drinks for a set period of time, there are many different ways of fasting. In general, most types of fasts are performed over 24–72 hours. Intermittent fasting, on the other hand, involves cycling between periods of eating and fasting, ranging from a few hours to a few days at a time. Fasting has been shown to have many health benefits, from increased weight loss to better brain function. Here are 8 health benefits of fasting — backed by science. Share on Pinterest Photography by Aya Brackett 1. Promotes blood sugar control by reducing insulin resistance Several studies have found that fasting may improve blood sugar control, which could be especially useful for those at risk of diabetes. In fact, one study in 10 people with type 2 diabetes showed that short-term intermittent fasting significantly decreased blood sugar levels ( 1 ). Meanwhile, another 2014 review found that both intermittent fasting and alternate-day fasting were as effective as limiting calorie intake at reducing insulin resistance ( 2 ). Decreasing insulin resistance can increase your body’s sensitivity to insulin, allowing it to transport glucose from your bloodstream to your cells more efficiently. Coupled with the potential blood sugar-lowering effects of fasting, this could help keep your blood sugar steady, preventing spikes and crashes in your blood sugar levels. Keep in mind though that some studies have found that fasting may impact blood sugar levels differently for males and females. For instance, one older, 3-week study showed that practicing alternate-day fasting impaired blood sugar control in females but had no effect in males ( 3 ). summary Intermittent fasting and alternate-day fasting could help decrease blood sugar levels and reduce insulin resistance but may affect males and females differently. 2. Promotes better health by fighting inflammation While acute inflammation is a normal immune process used to help fight off infections, chronic inflammation can have serious consequences for your health. Research shows that inflammation may be involved in the development of chronic conditions, such as heart disease, cancer, and rheumatoid arthritis ( 4 ). Some studies have found that fasting can help decrease levels of inflammation and promote better health. One review of 18 studies found that intermittent fasting could significantly reduce levels of C-reactive protein, which is a marker of inflammation ( 5 ). Another small study discovered that practicing intermittent fasting for 1 year was more effective at decreasing levels of inflammation and reducing certain risk factors for heart disease compared to a control group ( 6 ). What’s more, one animal study found that following a very low calorie diet to mimic the effects of fasting reduced levels of inflammation and was beneficial in the treatment of multiple sclerosis, a chronic inflammatory condition ( 7 ). summary Some studies have found that fasting could decrease several markers of inflammation and may be useful in treating inflammatory conditions, such as multiple sclerosis. 3. May enhance heart health by improving blood pressure, triglycerides, and cholesterol levels Heart disease is considered the leading cause of death around the world, accounting for an estimated 31.5% of deaths globally ( 8 ). Switching up your diet and lifestyle is one of the most effective ways to reduce your risk of heart disease. Some research has found that incorporating fasting into your routine may be especially beneficial when it comes to heart health. One review revealed that alternate-day fasting could reduce levels of total cholesterol and several risk factors for heart disease in people with overweight compared to a control group ( 9 ). Another review showed that alternate-day fasting was able to significantly decreased blood pressure, as well as levels of blood triglycerides, total cholesterol, and LDL (bad) cholesterol ( 10 ). In addition, one older study in 4,629 people associated fasting with a lower risk of coronary artery disease, as well as a significantly lower risk of diabetes, which is a major risk factor for heart disease ( 11 ). summary Fasting has been associated with a lower risk of coronary heart disease and may help lower blood pressure, triglycerides, and cholesterol levels. 4. May boost brain function and prevent neurodegenerative disorders Though research is mostly limited to animal research, several studies have found that fasting could have a powerful effect on brain health. One 2013 study in mice showed that practicing intermittent fasting for 11 months improved both brain function and brain structure ( 12 ). Other animal studies have reported that fasting could protect brain health and increase the generation of nerve cells to help enhance cognitive function ( 13 , 14 ). Because fasting may also help relieve inflammation, it could also aid in preventing neurodegenerative disorders. In particular, studies in animals suggest that fasting may protect against and improve outcomes for conditions such as Alzheimer’s disease and Parkinson’s ( 15 , 16 ). However, more studies are needed to evaluate the effects of fasting on brain function in humans. summary Animal studies show that fasting could improve brain function, increase nerve cell synthesis, and protect against neurodegenerative conditions, such as Alzheimer’s disease and Parkinson’s.
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Read More »5. Aids weight loss by limiting calorie intake and boosting metabolism Many dieters experiment with fasting to try to lose weight. Theoretically, abstaining from all or certain foods and beverages should decrease your overall calorie intake, which could lead to increased weight loss over time. Some research in animals has also found that short-term fasting may boost metabolism by increasing levels of the neurotransmitter norepinephrine, which could enhance weight loss ( 17 ). In fact, one review showed that whole-day fasting could reduce body weight by up to 9% and significantly decrease body fat over 12–24 weeks ( 18 ). Another review found that intermittent fasting was actually more effective in inducing weight loss compared to continuous calorie restriction ( 19 ). In addition, other research has found that fasting may lead to greater reductions in body fat and belly fat compared to continuous calorie restriction ( 20 ). summary Fasting may increase metabolism and help reduce body weight and body fat. 6. Increases growth hormone secretion, which is vital for growth, metabolism, weight loss, and muscle strength Human growth hormone (HGH) is a type of protein hormone that is central to many aspects of your health ( 21 ). In fact, research shows that this key hormone is involved in metabolism, weight loss, and muscle growth ( 22 , 23 , 24 ). Several studies have found that fasting could naturally increase HGH levels. One study in 11 healthy adults showed that fasting for 24 hours significantly increased levels of HGH ( 25 ). Another small, older study in nine males found that fasting for just 2 days led to a five-fold increase in the HGH production rate ( 26 ). Plus, fasting may help maintain steady blood sugar and insulin levels throughout the day, which may further optimize levels of HGH, as some research has found that insulin can influence the secretion of HGH ( 27 ). summary Studies show that fasting can increase levels of human growth hormone (HGH), an important protein hormone that plays a role in growth, metabolism, weight loss, and muscle strength. 7. Could extend longevity Several animal studies have found promising results on the potential lifespan-extending effects of fasting. In one study, rats that fasted lived 28% longer and developed disease later than rats that were given unlimited access to food ( 28 ). Other research has turned up similar findings, reporting that fasting could be effective in increasing longevity and delaying disease ( 29 ). However, current research is mostly limited to animal studies. Further studies are needed to understand how fasting may impact longevity and aging in humans. summary Animal studies have found that fasting could delay aging and increase longevity, but human research is still lacking. 8. May aid in cancer prevention and increase the effectiveness of chemotherapy Animal and test-tube studies indicate that fasting may benefit the treatment and prevention of cancer ( 30 ). In fact, one older rat study found that alternate-day fasting helped block tumor formation ( 31 ). Other research in test-tubes and animals suggests that fasting could reduce the progression of tumors and increase the effectiveness of chemotherapy ( 32 ). Unfortunately, most research is limited to the effects of fasting on cancer formation in animals and cells. Despite these promising findings, additional studies are needed to look at how fasting may influence cancer development and treatment in humans. summary Some animal and test-tube studies suggest that fasting could block tumor development and increase the effectiveness of chemotherapy. How to start fasting There are many different types of fasts, making it easy to find a method that fits your lifestyle. Here are a few of the most common types of fasting: Water fasting: Involves drinking only water for a set amount of time.
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Read More »Involves drinking only water for a set amount of time. Juice fasting: Entails only drinking vegetable or fruit juice for a certain period. Entails only drinking vegetable or fruit juice for a certain period. Intermittent fasting: Intake is partially or completely restricted for a few hours up to a few days at a time and a normal diet is resumed on other days. Intake is partially or completely restricted for a few hours up to a few days at a time and a normal diet is resumed on other days. Partial fasting: Certain foods or drinks such as processed foods, animal products, or caffeine are eliminated from the diet for a set period. Certain foods or drinks such as processed foods, animal products, or caffeine are eliminated from the diet for a set period. Calorie restriction: Calories are restricted for a few days every week. Within these categories are also more specific types of fasts. For example, intermittent fasting can be broken down into subcategories, such as alternate-day fasting, which involves eating every other day, or time-restricted feeding, which entails limiting intake to just a few hours each day ( 33 ). To get started, try experimenting with different types of fasting to find what works best for you. summary There are many different ways to practice fasting, which makes it easy to find a method that fits into just about any lifestyle. Experiment with different types to find what works best for you. Safety and side effects Despite the long list of possible health benefits associated with fasting, it may not be right for everyone. For example, if you have diabetes, fasting can lead to spikes and crashes in your blood sugar levels, which could be dangerous ( 34 ). It’s best to talk to a doctor first if you have any underlying health conditions or are planning to fast for more than 24 hours. Additionally, fasting is not generally recommended without medical supervision for older adults, adolescents, or people with underweight ( 34 ). If you decide to try fasting, be sure to stay well-hydrated and fill your diet with nutrient-dense foods during your eating periods to maximize the potential health benefits. Additionally, if fasting for longer periods, try to minimize intense physical activity and get plenty of rest. summary When fasting, be sure to stay hydrated, eat nutrient-dense foods, and get plenty of rest. It’s best to consult with a doctor before fasting if you have any underlying health conditions or are planning to fast for more than 24 hours.
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