Too Much Martha is the 2nd part of the 9th episode of Martha Speaks and the 79th episode in total.
Martha's constant pursuit of snacks has added some extra pounds and the vet says she needs to lose some weight. The family resolves to help Martha control her portions and maintain a balanced diet, but when Martha learns what this means, she's pretty fed up. No more late night pizza?
Here's a gallery of the episode segment.