what I have found in talking with friends and relatives is that intermittent Fasting seems to work for men but not for women. Maybe this has to do with the fact that men don't have to physically have children? So Men's metabolism is very different than women?begin partial quote from: Aug 22, 2024 — Now, a study in mice suggests that fasting and then refeeding boosts cell regeneration in the intestines. However, the research found that this ...People also askHow many days of fasting to clear the colon? Fasting does not actually clear or "cleanse" the colon,
as the large intestine continues to produce mucus and hold waste even
after 3 to 4 days without food. Medical experts state that complete
bowel evacuation requires specialized medical prep (such as laxatives
for a procedure) rather than a water fast, and fasts lasting longer than
3 days can risk nutrient depletion and health complications.How the Colon Responds to Fasting- Stool reduction: Stool output stops after 3 to 4 days of a water fast, but the colon is not empty; it transitions to secreting mostly mucus.
- No medical detox needed: The body naturally cleans and maintains itself via the liver and kidneys without specialized fasts or commercial cleanses.
Safety and Risks- Short fasts: A 24-hour fast gives the digestive system a temporary break without causing major harm for healthy individuals.
- Extended fasts: Fasting beyond 3 days can lower your electrolytes, deplete essential vitamins, and stress the body.
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- Stool reduction: Stool output stops after 3 to 4 days of a water fast, but the colon is not empty; it transitions to secreting mostly mucus.
- No medical detox needed:The body naturally cleans and maintains itself via the liver and kidneys without specialized fasts or commercial cleanses.
- Short fasts: A 24-hour fast gives the digestive system a temporary break without causing major harm for healthy individuals.
- Extended fasts: Fasting beyond 3 days can lower your electrolytes, deplete essential vitamins, and stress the body.
Previous studiesTrusted Source from the same research group have shown that mice that are fasted for 24 hours, then fed their normal diet have enhanced intestinal stem cell function, which may promote intestinal regeneration and aid recovery from injuries or inflammation.
In this study, researchers divided the mice into three groups: group one fasted for 24 hours; group 2 fasted for 24 hours and then was allowed to eat whatever they wanted during a 24-hour refeeding period; and a control group ate whatever they wanted throughout the experiment. All groups had unlimited access to water at all times.
At different time points during the experiment, the researchers analyzed the mice’s intestinal stem cells.
They found that the stem cells’ ability to multiply was highest during the 24-hour refeeding period in mice that had previously fasted for 24 hours. These cells also replicated more rapidly than intestinal stem cells from mice that had not fasted at all.
The cells also activated a cellular signaling pathway, called mTORTrusted Source, that is involved in cell metabolism, growth, and regulating protein synthesis. When it is activated, cells produce more protein, which is vital for proliferation of stem cells.
The researchers demonstrated that when mTOR is activated in these stem cells, they produce higher levels of polyaminesTrusted Source — small molecules needed for cell growth and division.
Study authors Ömer Yılmaz, Shinya Imada, and Saleh Khawaled told Medical News Today:
“Intestinal stem cells are the cells responsible for replenishing the intestinal epithelium in normal physiology and after damage. As refeeding enhanced the regeneration capacity of these cells, this is highly beneficial for the renewal of the intestinal tissue especially in damaged tissue as we found with the irradiation models that we used in our current manuscript.”
Eamon Laird, visiting adjunct assistant professor at TCD Dublin, and assistant lecturer ATU Sligo, Ireland, agreed that this rapid regeneration could be beneficial:
“Evolutionarily this would make sense – after a difficult time or a period without resources, the body would prioritize cell regeneration as soon as it got food or resources again. It does not know when the next hardship is going to come, so it needs to repair and prepare the cells for the next difficult perio
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