The digestive system consists of organs that are responsible for providing the body with sustenance. This consists in taking nourishment from the outside and digesting it, that is transforming nutrients to water-soluble substances that can be absorbed by the body. We feed in order to provide our body with building material necessary for the growth and regeneration of worn out cell parts, and energetic material that as a result of the metabolic process gives as the energy that we need. This energy ensures the functioning of internal organs, maintains constant body temperature and allows us to perform any kind of physical activity.

Human digestive system consists of oral cavity, pharynx, esophagus, stomach, small intestine (duodenum, jejunum, ileum) and large intestine (cecum, colon, rectum). The glands that form part of the digestive systems are salivary glands, liver, and pancreas. Food is digested by digestive juices. Salivary glands produce saliva, which contains the enzyme amylase. The stomach’s mucous membrane secretes juices containing mainly hydrochloric acid and pepsin. The small intestine produces the so-called intestinal juice. The liver secretes bile to the intestines, and the pancreas secretes pancreatic juice. Nutrients are absorbed mainly in the small intestine, while only certain substances such as water and mineral salts may be absorbed in the large intestine. Undigested and redundant residue is then expelled from the body.


Digestive system diseases are often caused by bad eating habits. Foods rich in fat are particularly harmful, as well as overeating, skipping breakfasts, eating just before sleep, and abusing alcohol. Stress, and chronic stress in particular, is another risk factor in digestive diseases. Digestive problems (constipation, diarrhea, flatulence, abdominal pain) may be a sign of indigestion caused by overeating or intolerance of certain types of food. However, they are often a sign of more serious diseases such as peptic ulcer, gastric reflux, irritable bowel syndrome, stomach or large intestine cancer, gallstones, acute viral hepatitis, cirrhosis, acute chronic pancreatitis, and many more. The symptoms may also point to parasitic diseases such as tapeworms, trichinosis, pinworms or roundworms.


Preventing digestive system diseases consists mainly in healthy nutrition, relaxation and rest in order to release stress, and prompt reaction to any symptoms that may appear. Taking Nef-Ra as a preventive measure supports the digestive system and prevents the diseases that may affect it. In the case of a disease, Nef-Ra stimulates the body to fight the disease and at the same time alleviates the side effects of taking medicines.


My name is Henryk. Last year in August I was diagnosed with cancer of the large intestine. The news was devastating. Around one and a half meters of my intestine was affected by polyps, which according to the doctors was incurable. I was told that there were two types of polyps, benign and potentially cancerous. Mine were of the second type. There are no coincidences in life, I met Kazimierz, the inventor of Nef-Ra – he recommended the herbal preparation that he had spent his whole life working on. Until then I did not believe in such medicaments, but I thought that if someone spent their entire life working on something, then it must be worth something. I tried Nef-Ra. I have been taking it for eight months now. I had a surgery scheduled, which I went to. I was cut from ribs to the very hips, but the doctors said that there was nothing to operate – the intestine that was covered in polyps before was completely healthy. I am immensely grateful to Kazimierz Sobiech for the years of his work and I encourage you – try Nef-Ra!

I had a tumor next to my liver, I suffered from acute pain under my armpits and in my groin that prevented me from normal functioning. I was very weak and I had bloody stool several times a week. Accidentally and probably at the last moment I found out about Nef-Ra, and already after two weeks of taking it I stopped having blood in my stool and the tumor began to shrink until after two months it disappeared almost completely. I stopped having pain in my entire body. I used to have an awful scar under my eye and it shrank by 80%. I feel like I am at least 10 years younger, I sleep less but I feel more rested. Before, I was released from the hospital because there was nothing they could do to help me, but Nef-Ra saved my life. Now I have met a girl and I am getting married, even though I was supposed to die. Thank you for Nef-Ra. Łukasz M. Chicago

I take Nef-Ra twice a day, in the morning and at night. Due to my work I had to give up the afternoon dose, which probably extended the time that it took to overcome my health problems, but I am still glad that I decided to undergo this treatment. These are the results that I would like to share with anyone who may be in a similar situation. After around 3 weeks of Nef-Ra treatment I got rid of my stomach issues. After 4 months I got rid of hemorrhoids. I was very pleased with the results of the treatment, but my cholesterol levels were still very high – above 300 mg/dl. Finally, after 8 months of treatment my cholesterol levels dropped and remained below 200 mg/dl, and my doctor says that my results are great. I am glad that I found Nef-Ra and I recommend it to anyone who has health problems. Staszek, Chicago, IL

I drank Nef-Ra for 5 months as an addition to the conventional treatment. I had stomach ulcer, hemorrhoids and bloody stools, and I was constantly worried that I had cancer. I was particularly worried about the bleeding. I completed both the traditional treatment and Nef-Ra treatment 8 months ago, I felt better and both the bleeding and the hemorrhoid issues stopped. My doctor ordered me to do a colonoscopy “in order to see what was happening inside”. Two months ago I decided to do it. The results were good and now I feel calm knowing that I am completely healthy. Danuta Z. Dyer, IN