I'm sorry if this has been discussed but I could not find it.
I've recently switched my eating habits. Now during the day, I have a Slim Fast shake for breakfast and lunch and some fruit in between for a snack. For dinner, I just have a regular meal (try to eat less!). But now I'm noticing that my energy level when I bike to work is less, the ride seems harder and I feel more tired during the ride. I've been riding the same route for about 3 months, but I just noticed the change in energy level. And the ride home is even worse!
I'm guessing that it's just my body changing what in uses for energy since I've lowered my caloric intake. So how long will this last?
I do drink Gatorade on the way to work and on the way home. Anything else I should be doing?