In this example, lunch on Monday is your last meal of the day. You then fast until lunch on Tuesday. This schedule has the advantage of allowing you to eat everyday of the week while still reaping the benefits of fasting for 24 hours. It's also less likely that you'll lose weight because you are only cutting out two meals per week. So, if you're looking to bulk up or keep weight on, then this is a great option.
Because of the massive amount of sugar that Americans eat on average, most people have become dependent on glucose, instead of fatty acids, for energy. Every supermarket, grocery store and coffee shop sells an abundance of sugary foods and drinks. When you eat a lot of sugar, and that sugar isn't utilized for energy, your body breaks it down and eventually stores it as body fat.
Both the keto diet and intermittent fasting trigger something referred to as autophagy. The latter is simply the technical term for a natural bodily function called “self-eating.” Although at first this may sound a bit frightening, autophagy is merely your body’s normal detoxification process, during which it eliminates contaminants and replaces them with newly formed, healthy cells.
Cons: Going 24 hours without any calories may be too difficult for some — especially at first. Many people struggle with going extended periods of time with no food, citing annoying symptoms including headaches, fatigue, or feeling cranky or anxious (though these side effects can dimish over time). The long fasting period can also make it more tempting to binge after a fast. This can be easily fixed… but it takes a lot of self-control, which some people lack.
So, what exactly is a relaxed approach to intermittent fasting? Again, since there’s little research done on intermittent fasting, we’re dealing with a bit of a gray area. The opinions also tend to vary depending on which site you visit, or which health expert you ask. From what we’ve found, the general guidelines to brief intermittent fasting for women are:
When you eat a meal, your body spends a few hours processing that food, burning what it can from what you just consumed. Because it has all of this readily-available, easy to burn energy (thanks to the food you ate), your body will choose to use that as energy rather than the fat you have stored. This is especially true if you just consumed carbohydrates/sugar, as your body prefers to burn sugar as energy before any other source.