We all know that rest is important. When our legs or feet are tired, we sit down. After exercising, we allow our bodies to cool down. We let our hearts go back to a resting pulse, and we let our breathing return to normal. So, what about our digestive systems?
Each time we eat or drink most anything, our digestive system wakes up and begins working. Whether it's a full meal or a small snack (a bite of a cookie, a sip of juice, or even one nut), each time we consume food or drink (other than plain water and a few exceptions like plain black coffee or tea), our bodies release insulin, a hormone made by the pancreas. Insulin is critical to the digestive and metabolic process, as it enables glucose to enter our bodies' cells and provide energy. If we do not use this energy, our cells store it in the form of fat.
If we eat throughout the day, either by snacking (sneaking a goldfish cracker or a few crumbs from our kid's plate), or sipping on a juice or soft drink, we are continually waking up our digestive system, and starting the process of releasing insulin and moving glucose to our cells. After eating, it takes about 1-2 hours for blood sugar levels to return to normal (this is true for people who do not have diabetes- if you have diabetes, please talk to your doctor). Eating foods high in sugar and refined carbohydrates will lead to a larger amount of insulin in the bloodstream, as compared to eating a snack that is high in fiber or protein and low in sugar. However, if we don't snack at all and let our digestive system rest, our insulin levels will remain low. When that happens, our fat cells are able to release stored glucose and use it as energy.
Often when we feel tired or bored, our first impulse is to reach for an unhealthy snack that provides a quick surge of energy. In doing so, remember that you are keeping your digestive system at work around the clock. If you are truly hungry, then opt for something nourishing, like a piece of fruit or a few nuts. Your digestive system will get to work but your insulin levels won't spike in the same way as if you eat crackers or chips. However, maybe take a minute and consider whether you are really hungry. If not, perhaps you can opt for a quick walk, a glass of water, or take a few deep breaths. Let your gut rest. It will thank you. For more information on intermittent fasting, click here.
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