Bunny Safe Foods

Rabbits in the wild all over the world successfully consume a wide variety of plant material.
Various types of dry and fresh grasses and plants with leaves comprise the largest portion of
the wild rabbit diet. Rabbits will also eat bark on trees, tender twigs and sprouts, fruits, seeds,
and other nutritious foods in small amounts. 
The majority of a rabbit's diet should be composed of grass hay. Grass hay is rich in vitamins A and D as well as calcium, protein, and other nutrients. Eating hay promotes healthy teeth and gastrointestinal tracts and should be available to your rabbit at all times. Varying the type of grass hay or mixing hays is a great idea (such as timothy, orchard, oat hay, brome, etc). Avoid the use of alfalfa hay as the primary source of hay due to the fact it is very high in calories and protein. Alfalfa is not a grass, but rather a legume (in the pea and bean family). Fresh foods are also an important part of your rabbit’s diet and they provide additional nutrients as well as different textures and tastes, which are enriching for your friend as well. Fresh foods also provide more moisture in the diet, which is good for kidney and bladder function. The bulk of fresh foods should be made up of leafy greens (about 75% of the fresh part of the diet). 
An approximate amount to feed would be around 1 cup of greens for 2 lbs of rabbit body weight once a day or divided into multiple feedings a day. Many plants contain a naturally occurring chemical called alkaloids, which are mild toxins that protect plants in the wild. The one most talked about with rabbits is oxalic acid and it is completely harmless to animals or humans when consumed in small amounts. The 2/6 amount of oxalic acid within each plant can vary significantly due to several factors including the composition of the soil the plant
grew in, the time of year, and the age of the plant. Most of the fresh vegetables we feed
rabbits have a low to zero level of oxalic acid but a few, most notably parsley, mustard
greens, and spinach have relatively high levels. The toxicity of oxalic acid comes with
feeding large quantities of foods high in this chemical and can result in tingling of the skin,
and the mouth and damage to the kidneys over time. These foods are nutritious and do not need to be excluded from the diet if you feed them appropriately. 
Some folks are concerned that your rabbits need to acquire a significant amount of vitamin A
from greens. As mentioned above, hay is rich in vitamin A, so it is unnecessary to be
concerned about the specific vitamin A content of the greens. Just for information though,
kale is extremely rich in vitamin A as well as most of the leaf lettuces. 
Foods that are notorious for causing rabbit GI problems when fed improperly are grains of any kind and legumes (beans, peas, etc). Even starchy root vegetables and fruits if fed to excess with their high load of sugars and starch could be a problem and should only be fed as a very small part of the diet.

LIST OF POSSIBLE FOODS TO FEED
If collecting wild foods such as dandelion greens, make sure they are from a pesticide-free  area.

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