Ketosis

Hi all,

I have just started the Lighter Life diet, lost 7.5 pounds in my first
week,
don't know about the second week yet, probably about 5 pounds :)

My question is about the body going into a state of Ketosis where it
burning
the body's fat stores to provide energy.

The Lighter Life counsellor has said that even eating a slice of cu***ber
would bring the body out of Ketosis, but I was under the impression that
the
body went into Ketosis when it wasn't getting energy from carbohydrates
and
the only thing that would bring it out would be to have a significant carb
intake, over 50g's I think.

The Atkins diet is based on the same principles of putting the body into
ketosis, but seems much more enjoyable than the slim fast style shakes and
soups that are provided with the lighter life diet.

Is this the case, or am I missing something?

Cheers

Jez