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Potential Side Effects of Thyroid Medication in Increasing The Risk Of Lung Cancer

Updated: Aug 2, 2023

Side Effects of Thyroid Medication

There are known side effects of thyroid medication but their connection with the risk of lung cancer is not commonly discussed. Here is a good article on this topic.

"Many of my readers were worried about taking thyroid medications in 2013 after an Italian study began circling the internet. This study found increased lung cancer rates in people who took T4-containing thyroid medications but not increased rates of breast, colorectal, and gastric cancer. Researchers decided to conduct this study because thyroid medications can increase oxidative stress in the body through the overproduction of reactive oxygen species by mitochondria... We know that oxidative stress can lead to chronic inflammation, which in turn has been connected to most chronic conditions, including cancer, diabetes, and heart disease (among others)." more at

Jenny Noland, MS, CNS, CNGS, CKNS, LDN, MBA

Functional Nutritionist in Eugene, Oregon

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