From what I have observed here, it takes between 8 months to a year to lose 85 pounds. However, that will vary depending on your gender (men tend to lose more quickly), how closely you follow induction, and whether you exercise or not.Also, some people stall because they are not eating enough calories or are not eating the right proportions of fat/protein and carbs. You will just have to see how it all works for you. I have been on Atkins before and lost much quicker than i have this go-round, but I am happy because I plan to make this way of eating a way of life. Carlene