Five quick questions: 1) Is it possible to overdose on nutrients? For example, my Vit C tabs deliver 600% of the RDA and my multivits deliver 100% of the Vit C RDA. Can this be bad for you? 2) Yesterday, I ate only 1500 cals--which is under eating (obviously)--one day starvation will not mess up the body, right? I woke up with hunger pains several times... (The low cal count was not intentional, time constraints forced me to skip dinner). 3) So I ate 1500 cals yesterday (cardio day)--and burned 800 in the gym (according to the cross trainer). Does that mean, in essence, I only ate 700 cals yesterday? 4) On cardio day should I keep protein uptake as high as weight days? I had 129g of protein yesterday (aiming for around 150)... 5) Is there an accurate way to work out calorie maintenance? Or, is there a standard for a certain weight?