Do you have more energy?

Yes! But I saw a huge difference in my energy within a week or two of changing my diet. I was consuming way too much processed foods and sodium before .. Once I switched to veggies and fruit and protein i really saw a difference.

Most of the time I do have more energy.

I have been moderating my eating since September 2013 (this time) and over all I have more energy.

If I eat a lot of highly refined carbs (junk food - take away, lots of biscuits, cakes etc - white flour products, high sugar content refined foods) I definitely feel more sluggish.

Fresh food works better as a fuel for my body these days, although a bit of good quality carbs - rice or complex grainy breads work okay as well.

When I started exercising in earnest (January 2014 - I had a knee injury prior) I noticed my need for real fuel increased markedly - I
upped my calories as I was feeling tired after exercise, this improved my well being and now I always eat about an hour and a half before I swim if I am doing this first thing in the day. Swimming too soon after eating for me, isn't comfortable.

I base my energy needs on the TDEE minus 30% (I have a lot of weight to lose, smaller loses they reckon only should be minus 20%) and then I eat back some of my exercise calories - on some days more than others because I can get quite ravenous after vigorous movement.