Well, no offense, but if she is already 21 and you are just know trying to get her to eat healthier, you waited a little too long. You need to start when they are babies. Both my toddlers love salad and various kinds of fruits and veggies. Just have her keep trying. Some things taste better than others, she just needs to probably find the taste of salads that suit her best. Good luck :)

Your 21 year old daughter is certainly old enough to make her own decisions on what she likes to eat.  However, many adults just simply do not like salads and lettuce is one of those items that many find hard to digest.  I'm sure she realizes the importance of eating vegetables and they do not necessarily have to come in the form of a salad, in fact most of the dressings that people indulge their raw vegetables in contain more fat and calories making a salad not the best choice then add bread & butter to the salad as many restaurants serve together and you've added a massive amount of calories.  So a in a case like this it would be a better choice to serve fresh steamed vegetables and leave the lettuce for someone who is more appreciative of the almighty salad.

does she not think that  she is a bit to old to doing that. my 4 year old eats everything i don't have to tell her that if she eats she will get an ice cream in fact i don't know how to make her eat less than what she eats.