Colon cleansing methods such as the one you describe raise many questions and doubts in the medical community. The claim that 15 kg of fecal stones accumulate in the intestines is not supported by scientific research, and it is not part of medical practice. In addition, the use of flour and sour cream (or kefir) to “cleanse” the intestines is also questionable and may be harmful to health.

If you have gut problems or want to maintain gut health, it is recommended that you consult a doctor or nutritionist for professional advice. They can offer you safer and more scientifically proven ways to improve bowel function, such as increasing your intake of fiber-rich foods, drinking enough water, and appropriate dietary recommendations. It is not recommended to carry out non-standard methods of cleansing the body on your own without consulting a doctor.