Vitamins and nutritional supplements: a potential danger to cancer patients

Vitamins are an integral part of our healthy life, as they are essential elements that the body needs to perform its daily functions properly. However, the phrase “moderation is key” once again rings true when it comes to taking supplements.

According to the German Cancer Society, excessive intake of nutritional supplements containing vitamins such as B12, vitamin C and E can increase the risk of lung cancer.

In a study published in 2019, it was found that high doses of vitamin B12 may promote the growth of already existing cancer cells. The vitamin does not cause cancer, but it creates an ideal environment for tumors to grow if they exist. It doesn't stop at vitamin B12.

A recent study in the Journal of Clinical Investigation showed that some antioxidants, such as vitamin C and E, may help cancerous tumors build new blood vessels, providing them with nutrients that speed up their growth and spread. The irony here is that these vitamins, which we consider to be protectors of the body, can turn into a hidden weapon that supports tumors.

Why is it dangerous?

Experts point out that the high concentration of vitamins in nutritional supplements differs from the natural amounts found in foods. For example, fruits and vegetables rich in antioxidants have balanced concentrations, making them safe and even beneficial for the body's health.

As for supplements, they may lead to an “overdose” that exceeds the body’s needs, which may cause adverse effects.

According to the German newspaper Augsburger Allgemeine Zeitung, the German Cancer Society confirms that taking nutritional supplements should be limited to necessary cases such as pregnancy or the presence of health disorders that hinder the absorption of nutrients. It is necessary to consult a doctor and undergo tests to determine vitamin levels before starting to take any nutritional supplement.

While vitamins from natural sources provide great benefits, supplements are not always the best option. Maintaining a healthy balance and avoiding overdoses is key to avoiding unexpected risks.

So, before you introduce a supplement pill into your daily routine, make sure that you are doing so out of a real need, and not just a desire to improve health without consulting a specialist.