I'm working on seriously cleaning up diet, but I'm also wondering about cardio and the general work-out. I go to the gym three days a week(mon, wed, fri) and work the whole body, doing 15 minutes on the treadmill afterwards(I just do the 'weight loss' selection at max which is 4.2 speed and going fr...

After working out I hit the stationary bike for about 20-25 minutes, alternating between 90rpm and 120rpm every 30 seconds.

Is this enough to lose weight if, in addition to that, I'm also walking to and from the gym, which takes about 40 minutes(about 20 minutes to walk there and 20 to walk back)?

Well lately when I've been working out I find myself feeling weak and out of energy after the first set of an exercise. I can only assume it's due to eating habits. I've been trying to not only gain muscle, but also lose weight in the past little bit so I've tried to tone down on the intake and eat ...

I recently have been eating a protein bar after work-out and it's filled me right up and kept me energized.

Now I'm trying to lose fat, are protein bars healthy snacks to have when I'm feeling like I want a little something, or do they provide too many calories and carbs for that?