Originally Posted by tplochar
So I've decided against a prolonged fast, instead I am going to incorporate green juices as a big part of my diet instead of my entire diet. For example today I had two scrambled eggs for breakfast along with a fresh squeezed juice. I might snack on some nuts or have a small piece of fruit during the day but will mainly rely on juices for "meals" until an hour before my workout I will probably have something carb heavy like a granola bar. After the workout I will have a lean cut of meat along with some veggies and perhaps a small side such as rice or some small potato dish.
Since my workouts consist of mainly weight lifting I decided that I would need the protein to help power and rebuild my muscles. During the fasting I was never really hungry or foggy, but seemed slightly less powerful or energetic if that makes any sense. Nothing that would overly concern me but I didn't like the calm feeling. I will say though that I did lose a decent amount of weight in a short time and I think that someone looking to reduce a significant amount of overall body weight (fat, water, and muscle) would do well on a juice fast. However most of us are not over 400 pounds and would rather keep the muscle we have or even build it bigger.
Protein is very important but intaking overly large amounts is not necessary. Someone lifting weights may only need 10%-35% of their diet to consist of protein. Take that into consideration when you're setting your weight lifting goals. Also, you need to ensure that at least 70% of your protein intake is from meat (chicken, beef, fish, etc.) or eggs because it is complete protein; nuts, dairy, etc. offer incomplete protein that is then processed appropriately by added complete protein. If you're upping your protein intake make sure you stay well hydrated. The loss of "power" in lifting weights can be caused GREATLY by not consuming enough water. I usually drink about 9-10 glasses of water a day @ 175lbs.
As for pushing weight for muscle gain I highly, highly recommend the HIT/heavy duty lift system by Mentzer. Even if you're not looking to get into lifting 100% at least with the Mentzer training you'll be putting in 100% effort each time you workout.
Good luck and be careful with extreme fluctuations in diet; pay attention to how you feel. Only your body will know if what you're doing is helping or harming it.