Best Selenium-Rich Foods for Backyard Birdss

Ranked by selenium content among foods safe for backyard birdss in the Creature Feast catalog.

Sunflower Seeds per 100g: 53ug selenium Sunflower seeds contain about 53ug of selenium per 100g, making them the richest selenium source at a typical bird feeder. Selenium is a core component of glutathione peroxidase, a powerful antioxidant enzyme that protects cell membranes from oxidative damage. For birds with their extremely high metabolic rates, antioxidant defense is critical to prevent the cumulative oxidative stress that sustained flight generates.

Oats per 100g: ~28ug selenium (soil-dependent) Oats provide about 28ug of selenium per 100g, depending on the selenium content of the soil where the grain was grown. This variability is important because selenium availability in soils varies enormously by region, and birds in selenium-poor areas depend more heavily on diverse food sources to meet their needs.

Pumpkin seeds per 100g: 5.6ug selenium Pumpkin seeds contain approximately 5.6ug of selenium per 100g. While lower than sunflower seeds, pumpkin seeds contribute to the selenium pool alongside other feeder foods. Selenium works synergistically with Vitamin E to form a two-tier antioxidant defense that protects the polyunsaturated fatty acids in bird cell membranes from peroxidation.