 There are 80-year-olds and 18-year-olds who have already succeeded on Plan Z. Husbands and wives, mothers and daughters. Hi, this is Zola from planzdiet.com. The average Plan Z by Zola client loses 31 pounds in less than 50 days. Not a measly one or two pounds a week. My dieters are anxious to wake up each morning, step on the scale, and see results.