"Zac Efron would make us feel guilty for eating big dinners. He'd say, "Do you really want to eat those carbs?" It was like, "Thanks a lot!""

This quote by Ashley Tisdale is referring to her experience with Zac Efron while they were shooting the film High School Musical. She is saying that Zac Efron would often make them feel guilty for eating big dinners, specifically if they were consuming carbs. He would ask them if they actually wanted to consume those carbohydrates, that made them feel guilty for enjoying a big meal. Ashley Tisdale's action to this was ironical, stating "Thanks a lot!" This quote reveals that Zac Efron was extremely health conscious and wished to make sure that everybody around him was eating healthy. He was not attempting to be mean or judgmental, however rather he was attempting to encourage them to make healthier choices.