Vitamin B12 is essential for red blood cell production, nervous system maintenance, and DNA synthesis in your budgie. Unlike many other B vitamins, B12 is found almost exclusively in animal-derived foods, which makes it a potential concern for budgies eating a purely plant-based diet. In the wild, budgies may obtain trace B12 from insects, soil bacteria on foraged foods, and their own gut microbiome. In captivity, cooked egg yolk is the most practical and bird-safe B12 source, with spirulina and bee pollen also providing small amounts.
A small amount of cooked egg yolk (about 2-3g) provides roughly 0.03-0.05mcg of vitamin B12 — your budgie's feed should contain approximately 3-10 mcg of vitamin B12 per kilogram, which translates to roughly 0.01-0.06mcg per day. Offering cooked egg once or twice per week ensures B12 adequacy, especially for budgies that do not eat pellets fortified with B12.
0.3% of daily nutrient intake
Vitamin B12 (Cobalamin) makes up 0.3% of your budgerigar's total daily nutritional requirements by weight. That's a tiny amount — but it matters.
Anemia, lethargy, weakness, poor appetite, neurological problems (unsteady movement, tremors), reduced growth in chicks, and poor reproductive performance. Deficiency develops slowly because B12 is stored in the liver, but chronic inadequacy will eventually cause noticeable symptoms.
B12 is water-soluble and excess is safely excreted. Toxicity from dietary sources is essentially impossible.
| Life Stage | Size | Min | Max | Unit | Notes |
|---|---|---|---|---|---|
| Adult | — | 3 | 10 | mcg/kg feed | Approximately 0.01-0.06mcg per day. Cooked egg yolk is the most practical dietary source. Offer egg 1-2 times per week. |
Source: avian nutrition references, general avian veterinary consensus
