Nutri Courses

Advisory

Cancer

Cancer is a group of diseases characterized by the uncontrolled growth and spread of abnormal cells. There are many types of cancer, including breast, lung, prostate, colon, and skin cancer. Cancer can affect any part of the body and can have many causes, including genetic factors, lifestyle, exposure to certain chemicals, and other factors.

Nutrition plays a key role in the prevention and treatment of cancer. Some foods, such as fruits and vegetables, contain antioxidants that can help protect the body from cell damage that can lead to cancer. Conversely, some foods and drinks, such as processed meats and alcohol, have been associated with a higher risk of developing certain types of cancer. Additionally, obesity is a strong risk factor for several types of cancer, so maintaining a healthy body weight through a balanced diet and regular exercise is important for cancer prevention.

Good day. As you mentioned, the ketogenic diet is not suitable for oncology patients. Can this type of diet contribute to the onset or development of cancer in people who are unaware of it or have an increased genetic predisposition due to the increased intake of animal products? I am basing this on information provided in the book The China Study, which claims that an increased amount of animal protein raises the risk of cancer and other lifestyle diseases. Or, on the contrary, can it have healing effects, as some of its proponents claim—alleviating allergies, eczema... Thank you.

This is a relatively specific situation for which there is no clear-cut answer. Ketogenic diets are a nutritional extreme and are not yet fully understood. This means we do not exactly know how the body will react in various situations under this dietary regimen. Generally speaking, an excess of proteins, especially animal proteins, does indeed increase the risk of developing and progressing certain malignant diseases. However, with a properly structured keto diet, such a situation should not occur because it is based on a very low intake of proteins.

It has not been proven that a ketogenic diet in itself contributes to the onset or development of cancer in HEALTHY individuals. On the other hand, some studies show that a high intake of animal fats may be associated with an increased risk of developing certain types of cancer (such as breast or colon cancer).

Ketogenic diets can have health benefits, but only in certain situations, and it is not possible to generalize this effect. Therefore, be cautious with these experiments, especially when it comes to oncological diseases.

Good day, Mr. Jelínek,

Is it sensible to use melatonin when a woman is diagnosed with breast cancer? And if treatment will follow? Could melatonin somehow affect the potential treatment?

Thank you.

That's a "good" question. In general, it is presented that melatonin, like any other hormonal substance, should be handled with care. This hormone has practically no proven side effects and, in addition to its ability to harmonize sleep biorhythms (which significantly contributes to regeneration), it is presented as a powerful antioxidant. Thus, from this position, its use appears to be safe. However, since it is a hormone that intervenes in body processes, it may interact with other medications, so some caution is necessary. It is ideal to consult supplementation with a treating oncologist, where I am not sure if they will say anything specific. The specialized literature states that melatonin has oncostatic effects, which is undoubtedly great information, but there are not enough studies available for the situation you are asking about. The fact is that oncological treatment exhibits a range of side effects, including sleep disorders, and in this respect, I would see the use of melatonin as beneficial.

Questions answered by

Mgr. Martin Jelinek
Lecturer and author of the educational system

Mgr. Martin Jelínek has been systematically involved in nutrition education since 1999. He is the founder of ATAC, the educational company behind NutriCourses, and the author of an educational system focused on nutrition, healthy lifestyle, and the practical application of nutrition knowledge.

He graduated from the Faculty of Science at Masaryk University in Brno. Throughout his professional career, he has combined nutrition, education, and the practical application of acquired knowledge. His educational system also includes the ZOF (Zone of Optimal Functioning) learning application, where students turn theory into practical work with meal plans.

In 2007, he launched the first intake of a six-month course focused on the education of nutrition advisors. Over time, this course became the foundation for the further development of the educational system and a range of specialised courses.