Best Vitamin B2 (Riboflavin)-Rich Foods for Backyard Birdss

Ranked by vitamin b2 (riboflavin) content among foods safe for backyard birdss in the Creature Feast catalog.

Sunflower Seeds per 100g: 0.36mg riboflavin Sunflower seeds provide about 0.36mg of riboflavin per 100g. Riboflavin (B2) is a cofactor in the flavoprotein enzymes that drive energy metabolism in avian tissues. It is especially important for the high oxidative capacity of bird flight muscles, which burn fat and glucose at extraordinary rates during powered flight.

Oats per 100g: 0.14mg riboflavin Oats contain about 0.14mg of riboflavin per 100g. Riboflavin deficiency in birds causes curled-toe paralysis in young birds and reduced growth rates. For wild nestlings fed by parents that forage at feeders stocked with oats and other grains, the riboflavin contribution supports normal development.

Spinach per 100g: 0.19mg riboflavin Spinach provides about 0.19mg of riboflavin per 100g. The riboflavin in green vegetables is highly bioavailable and supports the electron transport chain in avian mitochondria, which must operate at peak efficiency to meet the metabolic demands of birds with body temperatures around 40-42 degrees Celsius.

Pumpkin seeds per 100g: 0.15mg riboflavin Pumpkin seeds offer about 0.15mg of riboflavin per 100g. While not the richest source individually, pumpkin seeds contribute to the overall riboflavin intake when offered as part of a varied seed mix. Wild birds that visit diverse feeders and forage naturally on insects obtain riboflavin from multiple sources, and every contribution matters.