Maybe it would help you ...
I use to eat raw food since this spring and I found out that it helps even when I make serious efforts.
For instance, I traveled an average of 15 km/day, for an entire week, through a mountainous region. The only not raw thing that I eat was cheese (organic) about 50g/day and butter (not salted) about 12g/day, every other day.
I was surprised that I didn't felt hungry at all during that period.
In a way, working hard in an orchard (or a garden) it's similar to what I've done since walking on rough terrain (at an average of around 2.5 km/hour) is quite demanding in many aspects.
Anyway, try it, see if your pleased and let us know about it!
Humans are the only stupid species on Earth!
"I've got a little evidence to support my claim! It just seems to me ... that only a really low IQ population could have taken this beautiful continent and ... Have you taken a good look at it lately? It's embarrassing! Only a nation of unenlightened half-wits could have taken this beautiful place and turn it into what it is today: a shopping mall! A big f*****g shopping mall!"