Riboflavin supports energy production at the cellular level, healthy skin, proper eye function, and red blood cell formation. Like other B vitamins in rabbits, riboflavin is produced by cecal bacteria and consumed through cecotropes, making cecotrophy the primary delivery mechanism. Leafy greens and hay provide additional dietary riboflavin.
A few leaves of spinach (about 30g, fed occasionally due to oxalates) provide roughly 0.06mg of riboflavin — your adult rabbit needs approximately 1 to 3mg of riboflavin per kilogram of diet, with the majority supplied through cecotropes rather than direct dietary sources.
0.0% of daily nutrient intake
Vitamin B2 (Riboflavin) makes up 0.0% of your domestic rabbit's total daily nutritional requirements by weight. That's a tiny amount — but it matters.
Skin lesions, poor coat condition, eye problems, reduced growth in young rabbits, and general malaise. Deficiency is most likely if cecotrope consumption is disrupted.
Riboflavin is water-soluble and excess is excreted readily. Toxicity from food sources is not a concern.
| Life Stage | Size | Min | Max | Unit | Notes |
|---|---|---|---|---|---|
| Adult | — | 1 | 3 | mg | Per kilogram of diet. Cecotropes are the primary source of riboflavin for rabbits. |
Source: NRC 1977, general veterinary consensus
