Every report I have seen put her weight in high school at perhaps 150. I have never seen this 250 before and, given the level of the rest of the article, I am thinking she is just making it up.
She weighed 425 and played Left Tackle for the Green Bay Packers. Unfortunately, she developed an allergy to cheese and could not maintain her weight. Soon her weight had fallen so precipitously that she lost her job, then she lost all those cute rolls of blubber, and finally she weighed in at 110. For some reason she did not have all her extra skin left over from her obese period, but hey, don't mess with good theories.