In this answer, I will provide 3 Big Reasons Why Intermittent Fasting is Effective For Weight Loss. But first, what exactly is intermittent fasting so that we can understand why it works well for weight loss. Intermittent fasting is basically eating what you usually eat, but restricting the time frame when you eat. For example, an intermittent fasting schedule could be that every day, you only eat from the hours between 11 AM and 7 PM. This would be your “eating window”. At all other times that are not in your eating window, you would only drink pure water. Therefore, in this example, your eating window would be 8 hours long, and your fasting window would be 16 hours long per day. Always consult your doctor before starting any lifestyle program including intermittent fasting. Now, here are 3 Big Reasons Why Intermittent Fasting is Effective For Weight Loss:
1 Intermittent Fasting Trains Your Body To Burn Fat
Because you are only eating for 8 hours per day and you are fasting for 16 hours per day straight on an intermittent fasting program, this allows your body to burn fat for a continuous period of time. The way that our energy burning metabolism works is that after a meal, our bodies will burn mostly through carbohydrate stores in our muscles called glycogen. Only after a significant amount of glycogen is burned trough by the body will the body start burning through fat. So if you are eating all the time, there is very little opportunity for your body to access your fat stores, since, it is always burning through the carbohydrate (glycogen) stores. In intermittent fasting, you are not eating food for 16 hours straight (only drinking water during this time), so your body will have plenty of time to finish up burning through the glycogen (carbohydrate stores), and then start and continue burning through the fat stores. So you get a longer, continuous fat burn throughout the time period that you are not eating.
Also, once your body starts regularly becoming used to burning fat for fuel, you will then be able to more easily burn through fat in the future, since your body starts becoming more and more used to burning fat as a fuel source.
The eating window I would recommend is 8 hours. That is what worked best for me. It allows enough time for you to eat your meals, while allowing time for fat burn.
2 Intermittent Fasting Improves Insulin Sensitivity
Insulin is a hormone that your pancreas makes whose purpose is to drive glucose in your bloodstream into your cells and tissues. Insulin levels typically rise after eating a meal that contains carbohydrates, since carbohydrates contain glucose. Basically, the insulin hormone gives a signal to a cell (like a muscle cell for example) to receive the glucose that is in your bloodstream. When the glucose in your bloodstream is driven effectively into your cells and tissues, then you should feel lively with lots of healthy energy. However, if your cells are not responding to the signal from the insulin to receive the glucose from your bloodstream, then you can have high amounts of insulin and high amounts of glucose circulating in your bloodstream. This can be very damaging to your entire body, and this situation is called being insulin resistant.
Being insulin resistant is bad. You want the opposite of that which is called being “insulin sensitive”. If you are insulin sensitive, then your cells are receptive and “sensitive” to the signals from the insulin hormone to receive glucose from your bloodstream. Being insulin sensitive means that your blood sugar will be more balanced and you will feel healthier and more lively.
The opposite is true with being insulin resistant. If you are insulin resistant, then your body can’t turn the glucose in your bloodstream effectively into energy for your cells, so a lot of the glucose circulating around in your bloodstream, just quickly turns into fat, since it can’t be used for much energy. Then more weight gain happens. Insulin resistance can happen if you are eating all the time, because, in this case glucose will be constantly put into your bloodstream, and your cells can get tired of always having to deal with the insulin signals that keep happening because of all the glucose in your bloodstream. So in the case of insulin resistance, the cells do not receive glucose very well from your blood, because they get exhausted and desensitized from the constant insulin signals due to the high glucose levels in your blood.
Intermittent fasting allows you to take a break from eating, which allows your body to take a break from having food and sugars dumped into your bloodstream. When you get a break from having sugars being dumped into your bloodstream, then your insulin levels in your blood can come down to normal levels for an extended period of time. When this happens, your cells are not overwhelmed with high insulin and glucose levels in the bloodstream. So your cells can then be more receptive to insulin when your insulin does rise when you eat again, because they are given a break from elevated glucose and insulin in the bloodstream. This insulin receptiveness of your cells during intermittent fasting is called being “insulin sensitive”. Now, if you become insulin sensitive, when you do eat again, your body can properly process your meal by taking the glucose in your bloodstream and effectively drive that glucose into your cells and tissues for lively energy, and not have this glucose stored as too much excessive fat. Thus from this intermittent fasting, you have basically allowed your body to use your food to store as high quality energy instead of excess fat, and this will help a lot with weight loss.
3 Intermittent Fasting Helps Increase Natural Human Growth Hormone (HGH)
Human growth hormone (or HGH) has a very simple property that is a dream for people who want to lose weight. This hormone helps to burn more fat in your body and also helps to increase the production of lean muscle. Intermittent fasting has been shown to increase HGH levels, which will help significantly with weight loss. Additionally, increased HGH levels will help to change your body composition to become more muscular and have less fat.
There you have it! 3 Big Reasons Why Intermittent Fasting is Effective For Weight Loss. Hope this helps you.