With both pumpkin and yogart I just used a regular size spoon to dish each out. To get techinical it's probably a tablespoon full of each. Putting to much out at one time if it's not eaten all at once gets nasty after a while.

I served the yogart 1x a day and did the pumpkin 2 x a day.

I was feeding Science Diet Light/Purna One mix together for several years but when we took in Skinny, he could not tolerate it. So after much research and label reading, Switching to Nutro line of food (no corn by- products) ultimately did the trick at our house for Skinny. Within 2 weeks if that he was pooping tootie rolls.