Hi one of my friends has a 7 month old whippet and is constly worried she is too skinny cause she can see and feel her ribs yet the dog every stops eating. any advice greatly apreceated

Every Whippet is different but I like them plump at this age, the weight depends on how much is fed & how much exercise the dog has. You may be able to see/feel ribs but it may mean she is underweight, it may not. I know this might not be helping but without even a pic, it is soo hard to make comments to help.

As long as  the worming regime has been followed , think of how much exercise this baby is getting , how many calories are being burnt off , do they divide the meals , quality of food -all comes into it .