Once people stabilize their blood sugar -- which can happen just days after starting on PGX -- they're in a better position to learn healthy eating habits, which Lyon and Murray explain in their book.

Eating has always been a complicated affair for Dr. Michael Lyon.

He can eat quickly, sometimes downing three plates of food while others finish one, and he never gets a signal to let him know he's full.

"I can always eat another plate of food," says Lyon, a Calgary-raised doctor and co-author of the new book Hunger Free Forever: The New Science of Appetite Control (Atria Books, $29.99).

But in recent years, all that has changed for Lyon, who also conducts clinical research in obesity, diabetes and appetite regulation at the Canadian Center for Functional Medicine.

Lyon and his co-author Michael Murray, one of the world's leading authorities on natural medicine, have both lost weight and body fat on the Hunger Free Forever program that they've developed.

"We start with stabilizing blood sugar. We then have people learn to eat for high satiety -- that experience of feeling satisfied
with every meal and not feeling like you have to eat an inappropriate snack between meals. And we [help people] transform their dietary habits for life-long weight control."

Why is blood sugar so important for appetite control? The link is something Lyon and his colleagues have examined for the last few years.

When blood sugar fluctuates—especially when it drops —people experience cravings, which lead to eating the wrong foods at the wrong time.

How do you stabilize blood sugar?

Murray and Lyon recommend a natural "super fibre" called PolyGlycoPleX, a blend of dietary fibres designed to make you feel fuller sooner.

Once people stabilize their blood sugar — which can happen just days after starting on PGX — they're in a better position to learn healthy eating habits, which Lyon and Murray explain in their book.

Kelly Anne Erdman, registered dietitian with the University of Calgary Sport Medicine Centre, says using fibre supplements as part of a weight-loss program is nothing new.

"Many weight-loss programs incorporate fibre supplements for two reasons: for satiety, but also for digestion."