Popular Dietary Supplements May Increase Cancer Risk

Written by Camilla Jessen

Mar.05 - 2025 11:41 PM CET

Health
Photo: Shutterstock.com
Photo: Shutterstock.com
Overusing popular supplements may do more harm than good—some could even increase cancer risk!

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Dietary supplements are widely used for boosting health, but recent research suggests that overuse of certain supplements may increase the risk of cancer.

The Risks of Overusing Supplements

In today’s health-conscious world, people are bombarded with exercise programs, diet plans, and nutritional supplements. While many take daily supplements to enhance well-being, studies show that excessive intake of certain nutrients can lead to unintended consequences.

Specifically, antioxidants and phytoestrogens, which are often praised for their health benefits, can have harmful effects when consumed in high doses.

Antioxidants: Too Much of a Good Thing?

Antioxidants like vitamins C and E play a crucial role in neutralizing free radicals and protecting cells from damage. However, excessive doses can disrupt the body's natural balance.

Research suggests that an excessive reduction of free radicals may inhibit programmed cell death (apoptosis). In certain cases, high doses of antioxidants can even promote the growth of cancer cells.

This information was reported by the newspaper Kiskegyed.

The Importance of Proper Dosage

Another group of potentially risky substances is phytoestrogens—plant-based compounds that mimic the body’s natural estrogen.

While phytoestrogens may have beneficial effects in moderation, consuming them in high amounts can stimulate the growth of hormone-sensitive tumors, such as breast and prostate cancer.

The line between benefit and harm varies depending on an individual's physiology and overall health. Even widely accepted supplements can have unexpected consequences if taken in excessive amounts.

Rather than blindly following trends in high-dose supplementation, experts recommend seeking professional advice before making changes to your daily routine.