I started a 10 day cleanse 2 days ago. This is a whole food cleanse. Day 1 went well. It took getting used to the flavor of the shake. It is a little sweet for me. I put it in almond milk instead of water and that helped. I was down 3 pounds my first day. Day 2 was a little tougher. The detox headache came. This isn't my first cleanse (althought first cleanse with this product line) so I knew what to expect. Down 1 pound. Most cleanses I have been on you can only drink the mix they give you and no food. They are usually five days. This one is diffent. They gave me a list of foods and I have to eat. All organic fruits and veggies. I eat all organic anyway, so that wasn't a change for me.