Intermittent Fasting And The Metabolism


Intermittent fasting involves random or intermittent periods of going without food.

Clinical studies in both mice and humans have shown that intermittent fasting may have some benefits such as helping to manage body weight, controlling blood lipids, and regulating blood glucose levels.

What is Intermittent Fasting?

For medical purposes, intermittent fasting is defined as going without food for 8-12 hours. Unlike a long-term fast covering a specific time period of multiple days, intermittent fasting is characterized by the absence of food for a shorter time. Common types of intermittent fasting include:

  • Full-day fasting. This type of fast recommends fasting from one dinner to the next, or approximately 24 hours. For example, the person eats an evening meal at 7 PM and then fasts the following day until another evening meal at 7:30 PM.
  • Partial-day fasting. People eat during a specific “eating window” of time, in which eaters consume their daily allotment of calories over a 6-hour period and fast for the other 18 hours. People who have higher activity levels or are training for specific athletic events often plan their training around a longer window of time for eating (from 8-10 hours).
  • Alternate-day fasting. Eaters eat normally one day and then fast the next day. There are usually no restrictions on calorie intake on the eating day.

The Effects of Fasting on the Body

The body requires energy to absorb or digest food. The process of metabolizing nutrients can create potentially harmful free-radicals and may affect the aging process.

A lowered food intake may slow the aging process. Some of the metabolic or physiological outcomes of a brief or intermittent fast include:

  • Decreased metabolic rate
  • Increased liver glycogen breakdown
  • Ketone production from fat breakdown
  • Decreased growth hormone
  • Decreased fasting insulin levels
  • Decreased protein synthesis
  • Reduced glucose muscle intake

Many studies have been done concerning fasting for religious or spiritual purposes, including the Islamic ritual of Ramadan, a 4-week period of fluid and food abstinence from sunrise to sunset.

A study that examined Mormons in the American Journal of Cardiology (Horne et al 2008) suggested that groups that fast for religious purposes might also lower the risk of diabetes and coronary artery disease.

Chronic Calorie Deprivation vs. Intermittent Fasting

Intermittent fasting should not be confused with calorie restriction, which is a diet in which total calorie intake is restricted to approximately 60-80% of normal caloric intake.

During the 1940s, researcher Ancel Keys collected data on healthy men at the University of Minnesota for a period of 168 days with the men consuming 40% of their usual intake. This resulted in the development of disordered eating patterns such as an obsession with food and bingeing.

For most people, intermittent fasting might be an easier regimen to follow, as it allows for eating a surplus of calories on non-fasting days. It is easier to restrict calories on alternating days or for specific time periods rather than all the time.

Studies in mice that are restricted to an intermittent fasting or alternate–day fasting schedule of dietary restriction have shown an increase in disease resistance and longer lifespan (1).

The body weight and food intake of the mice was maintained while intermittent fasting, and resulted in metabolic benefits such as reduced insulin and blood glucose levels. It is unclear whether similar increase in lifespan would be obtained in humans without additional calorie restriction on the non-fasting days.


The concept of calorie restriction to increase lifespan and improve health is not a new one. Humans have fasted for religious purposes or during extended periods of food scarcity.

Intermittent fasting might be an easier way than extreme calorie restriction to regulate blood glucose, manage body weight, and extend life.

1. Anson RM, Guo Z, de Cabo R, et al. Intermittent fasting dissociates beneficial effects of dietary restriction on glucose metabolism and neuronal resistance to injury from calorie intake. Proc Natl Acad Sci U S A 2003;100:6216–20.


The Resting Metabolic Rate

Guides, In Detail

When it comes to losing weight, it is never really easy to do in general, and resting metabolic rate does not make it any easier. There are several products out there that claim to boost the natural means of burning calories but, for the most part, this resting metabolic rate is immutable.

Instead of using unproven products to boost your metabolism, having a sensible means of burning fat and building muscle will result in the best end.

What is the Resting Metabolic Rate?

Metabolism is the amount of energy that the body needs to maintain its standard, basic functions like breathing, circulating blood, repairing tissue and reproducing cells. Women interested in shedding some weight want to look to boost their metabolic rates; the rate measures the amount of energy that you use just sitting around all day, so boosting it helps burn more calories.

The number of calories that you will burn just sitting on the couch will account for about 70 percent of the calories that you need each day. Losing weight means consuming fewer calories than the body shows it’s burning.

Determining the Resting Metabolic Rate

There are different factors that contribute to determining a person’s resting metabolic rate, primarily genetic makeup. Women often have lower rates than their male counterparts, and this is due to men having a higher ratio of muscle to body fat; the muscle tends to burn off more calories than fat can, which means they have the higher metabolic rate.

Because of this, those with more muscle will also burn more fan due to the lean muscle’s ability to burn calories better than fat, so building lean muscle and removing fat will help you raise your rate.

Naturally, larger individuals have higher requirements for resting energy than their lighter and smaller counterparts. Finally, the most people age, the more the metabolism slows down, along with the number of calories burned in order to sustain the standard functions of the body. Reducing calorie intake and increasing your activity level will go farther in raising your rate.


There exist a few formulas to help determine what your resting metabolic rate, all of which involve simple math, but there are several websites that will help do the math for you if you do not want to think much about it. A 25 year old woman of 65 inches weighing 130 pounds would burn 1409 calories sitting around all day.

A 55 year old woman built in the same manner would only burn 1268 calories sitting around all day. A 20 year old woman standing at five foot six carrying 250 pounds would burn 1959 calories per day, and a 23 year old woman standing at four foot eleven carrying 90 pounds would burn 1216 pounds. As you can see, the differences are clear.


When you consume excess calories, you gain weight, so those who have slower rates can see better results with weight loss by getting active. By adding some extra activity every day, you can increase how many calories you need and boost both your health and energy. A 25 year old woman standing at 65 inches and weighing 125 pounds and who exercises an hour every day will burn almost 500 calories more than the same woman who sits around all day. After awhile, the calories add up and you will lose weight.

Boosting The Resting Metabolism

It is often dangerous to try to use metabolism boosters on the market, especially since there are no federal guidelines with regard to the efficiency or safety that the manufacturers would have to follow. Supplying your body with lean muscle and food with good nutrition and exercising will help you with your weight loss and your health as a whole.

resting metabolic rateTo start off boosting your rate, you need to know how to calculate it. Remember, even if you sit around all day, your metabolism is still actively working to burn calories so that you have the fuel required to do standard processes like thinking and removing waste from the kidneys. It is absolutely essential to eat at least as many calories as the body requires for this sedentary state, or else your body will assume famine and go into survival mode, burning as few calories as possible to try and store its limited fuel, which slows metabolism.

Next, you will want to add muscle onto your body. As it is heavier than fatty tissue, you will have more energy burned even during inactivity. Because of this, you will find that additional muscle will help with increasing your rate by about 100 calories for several pounds of muscle.

When you wake up, make sure that you have breakfast. When you have a nutritious, balanced breakfast, you will not only feel recharged after eight hours of good sleep, but you will also wake up your metabolism, which readies it to work throughout the rest of the day. For the rest of the day, eat small meals and snacks instead of the standard three meals, especially if you still wind up hungry with that.

The best way to ensure your metabolism is always active is to eat a small meal or a small snack every three hours, and this helps you keep a steady blood sugar level. Steady blood sugar prevents insulin spikes that cause you to crave bad foods.

Finally, maximize as much calorie burning as possible after exercise. If you alternate short intervals of activity like walking or swimming for five minutes at a standard speed with an intense 30 second burst of the same activity, then the cells that produce energy will be increased. Naturally, this will lead to more efficient calories and for a longer period of time, which means you can remain fit and lose weight with even shorter workouts.


5 Simple Tips To Speed Up The Metabolism


Metabolism is the term for your body’s work to convert food into energy; not just the energy that sustains you through a busy day, but the type of energy that ensures your body is getting the nutrients it needs in an efficient manner.

There are two activities involved in metabolism: catabolism, which is the breaking down of complex molecules in food into smaller ones more easily absorbed in digestion; and anabolism, which involves the changing of small molecules into larger ones so that fat and protein can be stored for the body’s future needs.

Weight loss has long been linked to metabolism. The key to losing weight is speeding up the metabolism so that food is broken down and disposed of more quickly and efficiently.

What are some ways to speed up the metabolism?

1. Walking

Exercise is a great way to speed up your metabolism, and the good news is that you don’t need an expensive gym membership, personal trainer, or grueling workouts! Just walking 30 minutes a day, five days a week, is enough to bump up your calorie-burning.

Because aerobic exercise (continuous exercise such as walking or swimming) burns more calories than anaerobic exercise (such as weight lifting or golf), walking means weight loss. Pop in your headphones, listen to your favorite CD or audio book, and hit the nearest park, lake–or even the streets in your own neighborhood.

2. Light muscle building

Combining walking with light muscle building gives your metabolism a one-two shot in the arm! As you build muscle, you will lose fat. Examples of light muscle building include walking with ankle or arm weights on or lifting light weights after you walk. Use a resistance band to build muscles in arms and legs.

An exercise ball is excellent for building abdominal and back muscles. Last but not least, you can try some good old fashioned sit-ups and push-ups! If you are a gym member, do a rotation of the weight machines after you use the treadmill or elliptical.

3. Spices

It may sound remarkable, but using spices such as ginger, cinnamon, cumin, cayenne pepper, and mustard can burn calories! That spicy cayenne pepper or hot mustard really does make your body work harder when you sweat; in fact, just a little bit of this spice each day can boost your metabolism by as much as 25%.

Cinnamon gives you more energy because of its role in increasing blood circulation. Ginger helps you utilize oxygen, a key component in calorie burning. Adding just a little bit of these spices into your daily food gives you a tasty edge on calorie-burning.

4. Proteins

Because protein takes more energy to digest, it makes your body work harder. It is, therefore, a great food to add to a metabolism-boosting diet. Lean protein sources such as chicken, fish, nuts, seeds, and lowfat dairy foods are good examples.

Various types of protein powders are available to add into milk or smoothies.

Whey protein burns calories more effectively than casein or soy, though the latter may taste better and produce a longer feeling of fullness.

5. Caffeine

What? Caffeine recommended in an article about health? Yes, it’s true: caffeine boosts your metabolic rate and even burns fat. It does this through raising blood pressure and revving up central nervous system activity. Although the effect is short-lived, lasting just a few hours, schedule your workout during that time and it will be more effective.

Perhaps obviously, black coffee with sugar free sweetener and low/nonfat milk is the preferred choice over venti sized sugar-packed frappucinos.

All in all, boosting metabolism isn’t difficult. None of these tips are expensive, time-consuming, or drastic yet all of them are proven effective to make your body work harder and burn calories faster. Decide to make the adjustments necessary to incorporate them into your daily life, and watch the pounds come off!


The Top 9 Negative Calorie Foods


One of the most important things that you can do to lose weight is eat more negative calorie foods. Negative calorie foods are a group of foods that require a lot of energy to digest.

These types of foods also help boost metabolism. Below are nine of the many foods that boost metabolism:

Citrus fruits

Citrus fruits are rich in vitamin C, which has been clinically proven to help boost metabolism. An easy way to get more citrus fruits into your diet is to eat them with your breakfast. Oranges, kiwi fruit, grapefruit and fresh lime are all examples of citrus fruits.


Oats are rich in Fiber. There are two types of fiber, soluble and insoluble. Both types are important, but insoluble fiber plays the biggest role in weight loss.

beautiful girlIt is the type of fiber that cannot be digested by the body. Insoluble fiber keeps you full longer and helps reduce food cravings. Raisin bran cereal is an example of a food that has a high insoluble fiber content.


Eggs have received a bad rap over the past few years because of their high cholesterol content. However, eggs have been shown to be one of the foods that boost metabolism. They are high in protein and low in fat. You should try to consume at least two eggs per day.


Walnuts are high in monounsaturated fat, which is also known as the good fat. Studies have shown that people who eat a diet that is high in good fats are more likely to lose weight. A fistful of walnuts per day will give you the right amount of good fats.


You need to get at least two servings of salmon per week. Salmon is rich in a group of polyunsaturated fats called omega 3 fatty acids. These nutrients can help speed up the weight loss process. Salmon is also low in saturated fat and calories. Omega 3 fatty acids have been shown to potentially reduce the risk of heart disease.


You definitely want to make sure that you are getting at least four servings of vegetables per day. Vegetables are high in fiber and low in calories. However, you should opt for fresh vegetables instead of the canned ones.

Canned vegetables are usually very high in sodium. Lima beans, peas, artichoke, carrots, lima beans and spinach are some of the best vegetables that you can eat. Higher-calorie vegetables, such as white potatoes, should be eaten in moderation.


If you are a meat lover, you should opt to eat poultry instead of red meat. Poultry has fewer calories and it is also very high in protein. Frying poultry will add unnecessary saturated fat and calories. For that reason, you should opt to eat it either baked or broiled.


Lentils are dried legumes. They are an excellent source of protein and fiber. Additionally, there has also been evidence to suggest that lentils can help reduce LDL, which is the bad cholesterol.


Approximately 70 percent of your body is made up of water. That is why you want to make sure that you are drinking at least eight cups per day. Water keeps you full longer, which helps prevent you from overeating. It also helps save you hundreds of calories per day. Creating a calorie deficit is one of the most important things that you can do to lose weight. Water has also been shown to raise metabolism by up to six percent. You may be able to lose up to six pounds a year just from drinking water.

Sometimes, it can be hard to drink the recommended eight cups of water per day. The good news is that you can easily get the recommended amount of water from your diet.

Tomatoes, watermelons, strawberries and cantaloupes are a few examples of foods that have a high water content.

Again, if you want to lose weight, you will have to eat more fat burning foods. Citrus fruits, oats, eggs, salmon, walnuts, poultry, vegetables, lentils and water are just a few of the many foods that have been shown to boost metabolism.


Herbal Metabolism Boosters and Getting The Most Out of Them

Nutrition, Supplements

Your metabolism is the grand weighing scale in your body. It decides how quickly you burn off calories, which directly affects how much weight you gain.

Learning about your metabolism can be a daunting experience. There are a lot of factors that decide how fast or slow it is, and some of these factors can’t be changed.

Luckily, there are things you can do to kick your metabolism into gear, no matter where you are in life.

SIMPLE SPICES THAT ARE herbal metabolism boosters:

herbal metabolism boostersYou may be surprised by how easy it is to find herbs that can help your body burn calories faster. In fact, some of the most basic elements to a quicker metabolism can be found in an everyday pantry.

Oregano, basil, and rosemary are all basic cooking ingredients that are proven herbal metabolism boosters. They work in different ways, whether they are blocking fat-building enzymes, or providing vitamins that can combat negative effects in our bodies. These are herbs you don’t want to miss out on.

  • Ginger and Ginseng have been celebrated for their healing properties in Asia for thousands of years. Both are powerful roots that can be ingested in whole form or in powdered form, while still giving great results. There are many different kinds of ginger and ginseng, and it is disputed which versions are the most supportive, but no matter which kind you opt for, you can’t go wrong here.
  • Cinnamon, nutmeg, and chili can all raise your body temperature, and cause you to burn fat faster. The first two are also high in essential nutrients that can keep your body in good balance. Spicy foods aren’t just tasty; they can help you stay healthy.
  • Garlic is one of the foods that are an all-time favorite when it comes to helping your body run efficiently. It can help you break down fat, add nutrients to your diet, and eliminate excess fluids from the body. It comes in cloves, powder, or extract form, all of which are beneficial. However, remember that crushing garlic is healthier than slicing it. Also, you may wish to let it sit for about 15 minutes before you eat crushed cloves.

Foods and Lifestyle changes that are metabolism boosters:

There are many different kinds of tea that can help you while you lose weight. Oolong and green tea are chocked-full of immune boosters and catechins, substances shown to give the metabolism a jump start for a few hours. On the other hand, mate tea is considered one of the easiest on your body. If you don’t like the taste of tea on its own, try it with a slice of lemon or a teaspoon of organic honey!

  • Coffee is one of those foods with a bad reputation because caffeine is a stimulant. It should be handled in moderation, but we must also consider what we put into our coffee. Dousing our drinks with creamers and sugars guarantees a crash later. But black coffee can, not only improve our diets, but strengthen our hearts as well.
  • Peppermint is a hybrid plant, created from spearmint and watermint. As such, any true combination of these three foods can help your body burn calories faster. It’s important to note, however, that peppermint oil doesn’t only help you lose weight. It can also affect the way medications you take metabolize in your body, so take care before you begin a steady regiment.

Besides what you can eat to rev up your metabolic engine, you may want to consider how often you eat. Your metabolism works best if you eat a number of small meals a day, rather than one or two huge portions. Take the time out to plan as many as six small refreshments a day and you’ll skip that “bogged-down” feeling after you eat.

Protein can also be one of these metabolism boosters, but you have to watch what kind you’re eating.

Lean meats and legumes are going to give you more bang-for-your-buck than bacon and fried chicken, no matter how much protein greasy substitutes have in them. Getting enough of these essential components can also help you build muscle.

You’ve heard it a thousand times: if you want to lose weight and stay healthy, you’re going to have to exercise. It’s true! Focusing not only on cardiovascular endurance, but strength exercises can boost your metabolism and help your body run stronger and more effectively. Exercise doesn’t have to be painful. At first, if all you can manage is 15 minutes jogging in place, that’s where you start. Steady workouts and building up your body is important. Don’t expect to be able to run a marathon in the first week, or even the first year. Set a steady, careful pace and stick with it.

Think of your body as a machine. In order to get the most out of it, you have to put the most into it. That includes maintaining your muscles, organs, and joints with regular usage. These foods and changes can help you on your path to a better life.