Picky Hamster

[BulletTheHamster]

I have had several several hamsters. Months, maybe 6 ago I got my first robo hamster. I have always loved the size and how active they are. The one I got is female, her name is Waddles. I've tried for so long but she refuses to eat any veggies or fruits. In my experience, this is really strange, as all my hamsters LOVED any fruits or veggies. I adopted a hamster from a friend years ago, and when I got him he had all his belly hair missing due to vitamin deficiency. And I am very scared that will happen to Waddles. She eats a diet of sunflower seeds, millet, oats, and Oxbow essentials hamster and gerbil food. But nothing other than that, are there any kind of vitamins i should be feeding her to keep her healthy?