Two forms of vitamin A are available in the human diet: preformed vitamin A (retinol and its esterified form, retinyl ester) and provitamin A carotenoids [1-5]. Preformed vitamin A is found in foods from animal sources, including dairy products, fish, and meat (especially liver).
Rabbit tobacco can be used medicinally in several ways. Smoking the leaves is good for sinusitis, head colds, and congestion. In hot teas, it is used to treat sore throats, fevers, diarrhea, colds, flu, pneumonia, asthma, and coughs, as well as a mild nerve sedative, a diuretic, and an antispasmodic.
Rabbits can be fed small, measured amount of pellets/nuggets each day, ensuring they get all the vitamins and minerals they need. See: meal planner. Remember hay and/or grass are much more important and should make up the majority of diet. See: feeding tips to ensure rabbits eat plenty of hay. Eating lots of hay/grass helps wear down rabbits' constantly growing teeth and keeps tummies healthy. It allows foraging and grazing; important normal behaviours.