I have a female cat, Molly who's about a year and a half now. I feel like she needs to gain some weight. She was the runt of the litter, when she was 3 months old the vet thought she was a couple of weeks. So, she's a tiny cat. She's also still very active. She's on a dry food only diet. When she was a kitten she ate wet food but around 6 months she wouldn't eat it and we experimented with all different flavors, textures &brands to no avail. Recently we tried the wet food again but she won't really eat anything we've bought. Is there any dry food that could help her gain? Tips on getting her to eat some wet food, and what kind? Anything else we can try? Thanks