Rabbits can safely consume strawberries, but only in moderation. This is not because any part of the fruit is actually toxic, but because a rabbit's digestive system is designed to handle fiber, not sugary foods. Foods that are high in sugar, like strawberries, can cause gastrointestinal disease if fed immoderately.
Rabbits can eat up two tablespoons of strawberries per day, but any more than that can cause problems. The main component of a rabbit's natural diet is grass, hay and other fibrous plant matter. The large amounts of fiber help food pass through the rabbit's gastrointestinal system at a healthy rate and allow for good bacteria to thrive. Rabbits that eat too much sugar, whether it is in the form of strawberries, beans or sugary root vegetables like carrots, can experience an overgrowth of toxic bacteria in their gastrointestinal system. Overfeeding of fruit can also cause gastrointestinal stasis, a potentially fatal condition, as there is not enough fiber in a rabbit's diet to keep food moving through the gut.