I'm going to point out to my obese aunt that her day hike to the Hollywood sign wasn't that big of an achievement.
Why would you downplay something that she is proud of?
She's overweight and I feel she's an embarrassment to herself.
That hike was a way for her to get in better shape. You shouldn't try to diminish her efforts, you should celebrate them.
Pigs are pigs. She has to face with the fact.
I think that that is mean. You have to start somewhere and putting down their accomplishments is an easy way to discourage someone. She just wants to feel better about herself.