Ive seen some lucky members sail right thru with very few struggles. Those are the ones who have the best nutrition (3000+ calories and 60+ oz water daily). To make it easier on the patient every single day they need at least 2500 calories and 48 oz of water. All too often when the going gets tough, and its becomes hard to swallow nutrition becomes harder to take in and water gets skipped too. This leads to a downward spiral which makes the patient feel absolutely horrible. I ended up hospitalized a few times for this. Being malnourished and dehydrated is not something anyone should go thru! I actually was sure I was going to die, thats how awful I felt.

Your question is one thats hard to answer. Most of us started having trouble around week 3 or 4. But we also have control over this by pushing the nutrition and hydration. When you begin to feel lousy is when you must push yourself to get enough in and that will make a huge difference. The hospital can also give you hydration if you arent able to take enough in. Dont forget about that as your backup.

Good luck!!