5 Common Cancer Myths Pharmacists Should Address

Misconceptions regarding the causes and progression of cancer can lead to significant psychological distress for patients and may negatively impact the decisions they make regarding prevention and medical treatment.

According to the National Cancer Institute (NCI), many popular beliefs about how cancer starts and spreads are scientifically incorrect, even when they appear logical or are based on outdated medical theories.

The Role of Sugar and Diet

A common misconception is the belief that eating sugar feeds cancer or makes the disease worse. While It’s a scientific fact that cancer cells consume more glucose than normal cells, the NCI states that no studies have shown that consuming sugar makes cancer worse.

there is no evidence that stopping the consumption of sugar will cause cancer to shrink or disappear.

However, the NCI notes a secondary link between sugar and cancer risk. A diet high in sugar may contribute to excess weight gain, and obesity is associated with an increased risk of developing several different types of cancer.

Contagion and Transmission

In general, cancer is not a contagious disease and does not spread from person to person through casual contact.

The NCI specifies that the only situation in which cancer can spread from one person to another is during the transplantation of organs or tissues.

Survival Rates and Prognosis

The perception of cancer as an automatic death sentence has been challenged by long-term data. In the United States, the likelihood of dying from cancer has steadily dropped since the 1990s.

Current data indicates that the five-year survival rate for all cancers combined is approximately 69 percent. For specific types of cancer, such as thyroid, prostate, and breast cancers, the five-year survival rates are 90 percent or higher.

Medical professionals emphasize that these statistics are based on large populations and do not predict the outcome for every individual. An individual’s prognosis depends on several variables, including:

• Whether the cancer is fast-growing or slow-growing
• The extent to which the cancer has spread throughout the body
• The availability of effective treatments
• The overall health of the patient

Genetics, Lifestyle, and Prevention

There is a persistent myth that cancer is always inevitable and that prevention is impossible. Research from the Dana-Farber Cancer Institute indicates that there is a complex relationship between genetics, cancer risk, and lifestyle choices.

Lifestyle factors play a significant role in cancer development. For example, the inhalation of tobacco creates conditions in the body that are almost ideally suited for the formation of cancer, contributing to lung cancer.

However, the existence of lung cancer in non-smokers demonstrates that there are other significant risk factors beyond tobacco use.

Other Common Misconceptions

Other myths frequently encountered by healthcare providers include the belief that herbal supplements can cure cancer, that certain deodorants cause breast cancer, or that biopsies and surgery cause cancer to spread.

Addressing these misconceptions is critical, as the NCI warns that wrong ideas about the disease can hinder a patient’s ability to make informed decisions about their care and prevention strategies.