Creature Feast | Guinea Pig / Vitamin B2 (Riboflavin) / Best Foods
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Best Vitamin B2 (Riboflavin)-Rich Foods for Guinea Pigs

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

#1
Timothy Hay per 100g dry: ~0.1-0.2mg riboflavin Timothy hay provides a baseline of riboflavin that, combined with cecal bacteria production and vegetable intake, meets daily needs. Store hay away from light — riboflavin degrades when exposed to sunlight, which is another reason to keep hay in a covered bin rather than a sunny windowsill.
#2
Spinach per 100g raw: ~0.19mg riboflavin Spinach is a relatively strong vegetable source of riboflavin. A few leaves offered two to three times per week contribute meaningfully to B2 intake. As always with spinach, moderate the frequency due to oxalate content.
#3
Dandelion greens per 100g raw: ~0.26mg riboflavin Dandelion greens provide moderate riboflavin alongside calcium and other vitamins. Many guinea pigs enjoy the slightly bitter taste. Pick dandelions only from pesticide-free areas, or buy them from a store. A handful of leaves several times per week is a nice addition to the vegetable rotation.
#4
Broccoli per 100g raw: ~0.12mg riboflavin Broccoli contributes modest riboflavin along with its Vitamin C and fiber. A small floret a few times per week is appropriate. Broccoli's riboflavin is fairly stable and well-absorbed from the raw form that guinea pigs eat.