They had a segment about these on a morning show and they're really full of sugar. As are those yoghurt squeeze things. Can you not just make them a Vegemite (or something) sandwich the night before? Or some fruit? Or carrot sticks? Or homemade muffins/muesli slice?

Having them while pregnant is ok, just high in sugar as I said. Not sure if sustagen is the same... When I had my DS and had no appetite, the midwives suggested sustagen and bananas to fill me up.

I also don't find up and go very filling.