She is a mother of three and a grandmother of four still looks like she would be in her 20s.
Hartz is also the author of the Sugar-free Baking Cookbook. Her book obviously includes recipes of her tried and tested sugar free cooking experience. She says she wants to inspire people to make healthy changes in their diet and look young and stay in shape even after they cross the age.
She gives all the credit of her being in shape and look young to her diet and a full sugar-free diet. She left eating sugar 28 years ago. That wasn’t easy for her because she loved eating sweets.