What is selenium good for? Properties, effects, and importance for health.

Natalia Goździak

Publication: 2025-06-03

Do you know that feeling when everything is under control? You're healthy, full of energy, and mentally sharp? Many of these benefits come from trace elements we rarely think about—like selenium. Though present in tiny amounts in the body, it plays a crucial role: it supports the immune system, protects against oxidative stress, and is vital in preventing chronic diseases. What is selenium good for and what are its properties? In which foods can you find the most of it? And can too much selenium be toxic?

Natalia Goździak

Master of dietetics, specialist in dietoprophylaxis and dietotherapy

Copywriter and nutritionist Graduated from the University of Physical Education in Poznan with a bachelor's degree in sports dietetics, and from UP in Poznan with a master's degree in dietoprophylaxis and dietotherapy. She treats principles of healthy eating, however, first and foremost as valuable tips, and not as strict rules to be strictly followed Privately a photography enthusiast who cannot imagine life without books