1. Meet Diesel the boxer. He's four years old, he's from Poole, and his favourite food is Custard Cream biscuits. He's also double the weight he should be.
2. Snowball is a two-year-old Dwarf Lop rabbit. His love of treats led him to be 35% overweight.
3. Bruce hates exercise but loves Weetabix with goat's milk and honey. He is 60% overweight.
4. Oscar the sprocker spaniel has already lost some weight, but has plateaued at 51% overweight.
5. Zorro's twin passions in life are crisps and napping. Zorro is my spirit animal. However he is 88% overweight.
6. Somehow, Barney's trick of eating newspaper has led to him being 75% overweight.
7. Joey the rabbit demands apples by clanging his bowl against his cage bars. He's 28% overweight.
8. Alfie, who loves chewing on pig ears, is 109% overweight.
9. Dave the cat weighs in at 58% overweight. Dave likes to steal his sister's food. I like Dave.
10. This is Zed, whose abiding love of cake has pushed him up to 114% overweight.
11. Poppy, tellingly, likes popcorn. She's 32% overweight.
12. Ty is 60% overweight thanks to his giant food portions.
13. Tom's canny ability to open food cupboards has led to him being 96% overweight.
14. And Jack Russell Max is 70% overweight. That's mostly biscuits.
15. And Daisy is over 40% overweight - thanks to a steady diet of cheese and broccoli.
Pet Fit Club can work - last year's winner, a Jack Russell named Ruby, lost over a stone during the six month stint.
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Keep an eye on these pets' progress, and find out more about the PDSA's Pet Fit Club.