Can Quercetin Cause Hypothyroidism?

There isn’t substantial scientific evidence suggesting that quercetin, a flavonoid found in various fruits, vegetables, and supplements, directly causes hypothyroidism in humans.

Quercetin is known for its antioxidant and anti-inflammatory properties and is often consumed as a dietary supplement for various health benefits. While it interacts with certain enzymes and receptors in the body, there isn’t conclusive evidence indicating a direct link between quercetin intake and the development of hypothyroidism.

However, it’s important to note a theoretical consideration regarding quercetin and thyroid function:

  • Thyroid hormone synthesis: Some studies in animals and test tubes (in vitro studies) have suggested that quercetin might affect thyroid function by influencing the production or conversion of thyroid hormones. These studies, however, do not necessarily translate directly to human effects or real-world outcomes.

Individual responses to supplements can vary, and there might be rare cases of sensitivity or reactions to certain components in supplements, including quercetin. If someone experiences unusual symptoms or suspects an adverse reaction after taking quercetin supplements, they should consult a healthcare professional.

Always discuss any concerns about supplements or changes in health with a qualified healthcare provider. If someone has a diagnosed thyroid condition or is taking medication for thyroid issues, it’s particularly important to seek guidance from a healthcare professional before starting any new supplements to ensure there are no potential interactions or adverse effects on thyroid health.

Scientific research continues to evolve, so staying informed about the latest studies and consulting healthcare professionals for personalized advice is crucial when considering the use of dietary supplements and their potential effects on health, including thyroid function.