For all her counter-culture image, Grace was really all about her career. She was (is?) 5'8" and tried to stay about 125 pounds. She was very concerned about looking fat on TV.
She got up to 160 pounds in the early 1970's. "Screw" magazine called her Jefferson Blimp. By the time I saw her in 1980, during the "Dreams" and first book promo, she was down to about 115. My arms were bigger than her legs.
I saw her last about a year and a half ago at one of her art shows. She is white-haired (actually has been since her mid-20's) and a more than a bit chunky. But she was very pretty. Her eyes are amazing.
Grace Slick was meant to be a star. And she knows it. Seek and find her song "Love Too Good". She is a fantastic vocal artist.