We have enzymes for digesting starches, starting in the mouth, ending in the small intestine. We have enzymes for breaking complex sugars down into absorbable monosaccharides, which our cells require as their source of energy. The carbohydrates that we don't digest are the fibre we must have for digestive health.

Now I'm not a religious man, but tell me this: if God had intended carbohydrates to be the very spawn of Satan that some of you folks seem to be suggesting it is, then why did he put these mechanisms in place for us to handle them so well and make a gut for us that depends so much on them for its digestive health? Huh??

What I'd suggest is that you should go back to before you lost that 20lb and reflect on why that extra weight was there in the first place, on what you were doing to put it there. You might also reflect on the fact that a gram of fat contains about two and a half times as much energy as a gram of carbohydrate.

Not eating carbs may be a valuable strategy for diabetics and for people with specific intolerances or gut disorders. As for the rest of us, cutting them out completely (as if you could anyway...) is a very risky - and faddy - strategy, and no-one should be pushing it.