My guess is that Tootsie has developed a craving for the too sweet yoghurt drops. Like us, if we only eat junk food like hamburgers and french fries and potato chips, good fresh fruits and vegetables taste pretty bad to us. The problem is not with the fruit and vegetables BUT with our diet!
I don't give any of my hamsters sweets, like yogurt drops. I find that all species naturally prefer bitter tasting greens, like dandelion greens, zuchini (courgettes) and romaine lettuce. But I also give them cucumber and asparagus. I only give Syrians the occasional piece of apple or banana.
I bet if you stopped giving your hammie the yoghurt drops, she would soon start to appreciate the healthy veggies and snacks!
She will be healthier and maybe even live a longer life too.
Hamstermama