Jane Seymour maintains the same size since age 17 without crazy diets

Jane Seymour has stayed in shape for decades without fad diets or marathon workout routines.

"I am now the size I was when I was 17 and a ballet dancer," the 74-year-old actress told Fox News Digital. 

"I try to stay around the same weight, but without going crazy about it. I have gotten bigger [over the years], but I never gained more than 10 pounds. I was smaller when I was in [1988’s] ‘War and Remembrance’ and when I was playing Wallis Simpson where I had to be crazy thin, which is not a healthy weight for me.