When I said about training before breakfast, I was talking about the said 1h in HR zone 3. If you eat adequately enough (which most people do), then you have enough reserves to fuel a 1 hour asaren ride on the rollers.
Then, as James pointed out, take advantage of the "half hour window" with a nutritious breakfast.
On the road I eat more than anyone I know. Like a fat lad at the pictures. Just ask Tom who watched me emptying my pockets at Tokyo~Itoigawa last year.
Andy
www.jyonnobitime.com/time
Sorry, Andy. I agree with you; I didn`t mean it was bad per se. I meant it was not good training if you are aiming to do high-end work and like FarEast said, can lead to bonking (but obviously not, if you are just riding for 1 hour).