Hi everyone the average time to reach ketosis is 3-4 days. As anyone taken longer to reach it. Day 4 still not in ketosis on ss+ and haven,t cheated. I will test tomorrow but I am still very hungry so don't think I will be tomorrow. I went on 3 slimfast shakes and low fat meal week prior to starting CD and lost half stone so would def of thought be in ketosis, now. Also anyone suffering backache. :sigh: