Currently I'm in the process of switching Roxy onto a new food. Tomorrows breakfast is her first meal of just the new stuff. My question is how much of this new stuff do I give her? I know it says on the bag roughly how much but when comparing it to the old it seems like so much more! I know this is probably because the new one is better with less fillers etc. But I don't want to give her too much but I also don't want her to be starving! How do you judge? It says on the pack 90-150g per day for dogs up to 10kilos and she's about 7.5. Her old food she only used to have 48g per day! Whereas this new one she could be having that amount for one meal?