Yes you will. Poop is made up of water, bacteria, food waste, and metabolic waste (all the stuff your cells can't use). Even if you don't eat anything at all, you will still poop as long as you are alive (if you don't the backup will kill you anyway). This is why people in comas or on hospice have to wear diapers.
Even if you don't eat, you'll still poop
That's because poo is made up of more than just the food you ingest. "If you don't eat, you can still have feces because the body produces secretions.
In fact, it can take 1–2 days before food finishes its journey through a person's digestive tract. Therefore, a person who poops shortly after eating is likely to be passing food that they ate a day or two earlier.
Generally speaking, you can go about five days without pooping before you run into the risk of serious health issues like fecal impaction, hemorrhoids, or a bowel perforation. That said, there isn't a magic number of days to set a countdown for.
What affects how often you poop? Your pooping routine can vary depending on your diet, hydration, levels of exercise and stress, and other factors. Generally, the more plant fiber you eat — from things like fruits, vegetables, whole grains, nuts, and seeds — the more regularly and often you'll poop.
If you're eating a produce-rich, high-fiber diet, intermittent fasting should be a breeze for your bowels. Most people who try intermittent fasting don't see much of a change in their poop, said Julie Upton, RD, Health's registered dietician and writer. However, some people do say they go less frequently.
If you are unable to have a bowel movement in one week (six days), it's time to seek help from a doctor. Bacteria from fecal matter that collects around your colon could spread and cause infections in other parts of your body. Rectal bleeding may be one of these signs.
Some people have them three times a day. Others have them just a few times a week. Going longer than 3 or more days without one, though, is usually too long. After 3 days, your stool gets harder and more difficult to pass.
The intestines can hold as little as 5 pounds and as much as 25 pounds of waste at any given time, varying greatly depending on your weight and diet. This is because your body is physically unable to completely digest all the foods you consume and some of them can get stuck in the lining of your intestines.
Your digestive tract is not void of tissue, secretions, etc. Sometimes when I emit it's just bile; I haven't eaten anything for hours. Your body will take from you what it can to suit its needs. I believe it's often your fat reserves.
Some GI disorders cause bulky and frequent stools even when you don't eat a lot. Even without a GI disorder, what you eat has a lot to do with your stools. If you eat a high-fiber diet, even if you don't eat a lot, you may have frequent bowel movements because of the fiber.
People think that by skipping food intake, they'll lose weight. But what you really need to be concerned about overall is total daily calorie intake. The problem is that when we go without food, fat-storing enzymes increase and metabolism decreases as a means of preservation.
In the short-term, you will probably weigh a few hundred grams more if you are constipated because your bowel is full of digested food. Just remember that this is rather insignificant because it hardly impacts your overall body weight.
The vegus nerve is part of that rest-and-digest system, and runs all the way from the brain stem to the rectum. "When that is stimulated, it can cause sweats, it can cause chills, it can drop your blood pressure and your heart rate as well," he says.
Many people poop once or a few times per day or every couple of days. Constipation, which is a symptom of many other conditions, refers to having fewer than three bowel movements per week . People who go more than a week without pooping may have severe constipation and should talk with a doctor.
Crouching on a chair. Sitting a certain way for seven seconds is not proven to help constipation. However, changing your body posture while on the toilet can make things easier. Place your feet on a stool to place your knees higher than your hips.
Fecal impaction is the result of severe constipation, when you're unable to regularly pass poop (stool or feces) and it backs up inside your large intestine (colon). Fecal impaction can also be defined by your inability to sense and respond to the presence of stool in your rectum.
Many people believe they have emptied out their colons after multiple episodes of diarrhea or that they can keep their colons empty by avoiding food. However, since stool is made up in large part of bacteria, fecal matter is continuously being formed.
When a person undereats, their body has less food to convert into stools, which can cause constipation. Constipation tends to mean having fewer than three bowel movements per week.
Irregular Digestion
Harrison says skipping meals could lead to both nausea and diarrhea, and you could even become constipated.
Dry fasting is a form of intermittent fasting in which no liquid is consumed during the fasting window. Dry fasting is modeled after certain religious fasts. During Ramadan, Muslims abstain from food and drink from dawn to dusk for 30 days.