Suze, you've misunderstood the 6 hour thing, matey!

The rule is about not going longer than 6 hours without eating - not waiting 6 hours until eating. It's intended to make sure people eat even though their appetite has decreased with the onset of ketosis.

See page 122 of the book - it's #1 of the Rules of Induction.

Cheers.

Rosebud