Riboflavin (vitamin B2) is a key player in energy metabolism, helping your dog convert fats, proteins, and carbohydrates into usable energy through its role as a coenzyme in oxidation-reduction reactions. It also supports healthy skin, coat, eyes, and mucous membranes, and is involved in red blood cell production. Riboflavin works closely with other B vitamins, particularly niacin (B3), which depends on riboflavin for its activation.
One large egg provides about 0.25mg of riboflavin — a medium dog needs approximately 1.3–5.0mg per day. Eggs, salmon, organ meats, yogurt, and spinach are reliable sources. Riboflavin is relatively stable during cooking but is destroyed by light, which is why dog food should be stored in opaque containers.
0.0% of daily nutrient intake
Vitamin B2 (Riboflavin) makes up 0.0% of your dog's total daily nutritional requirements by weight. That's a tiny amount — but it matters.
Dry, flaky skin, eye problems (redness, cloudiness, excessive tearing), slow growth in puppies, anemia, and weakness. Because riboflavin deficiency often accompanies broader B vitamin deficiency, symptoms may overlap with other B vitamin deficiencies.
Riboflavin is water-soluble with excess excreted in urine (which may turn bright yellow — this is normal and harmless). Toxicity is not a practical concern.
| Life Stage | Size | Min | Max | Unit | Notes |
|---|---|---|---|---|---|
| Adult | medium 10-25kg | 1.3 | 5 | mg | NRC recommended allowance. Riboflavin is destroyed by light exposure, so store food in opaque containers. |
| Senior | medium 10-25kg | 1.3 | 5 | mg | Senior dogs maintain similar riboflavin needs. Supports ongoing energy metabolism and red blood cell production. |
Source: NRC 2006
