I know my opinions haven't been very well received and I am sorry for that and sorry that I have narked people off (which I now realise I was bound to do).
But I thought you'd like to read what I have read which makes me think the way I do about diet:
This is from "Optimum Nutitrition Before, During And After Pregnancy" by Susannah Lawson and Patrick Holford:
"During the first three months of PG all the organs of your baby are completely formed. It is during this period that optimum nutrition is most important. Yet many people experience continual sickness at this time and don't feel like eating healthily.
"PG sickness is one example of a condition that usually only manifests itself in women whose nutritional status is less than optimum. Probably caused by an increase in the hormone HCG, women with poor diets are particularly at risk (Ref. "Nausea and vomiting in pregnancy" by B Pickard)
"HCG is produced by the developing placenta from the moment of conception and usually reaches its peak at around 9 or 10 weeks before declining by week 14 to 16.
"In very undernourished mothers, HCG may not be produced in sufficient quantities at all, which may explain why women who miscarry early are less likely to experience PG sickness.
"Conversely, very well-nourished women appear to ride the storm of these hormonal changes with little or no symptoms at all.
"Other possible explanations for sickness involve the body trying to eliminate toxins, and also difficulty maintaining blood sugar balance."
That's why I think steering clear of sugary foods (to maintain blood sugar balance) is important, plus not wasting calories on junk and using them for nutrient-dense foods instead. Also, I know the more sugary foods I eat, the more I want (cos my blood sugar levels go all over the place) so I try to steer clear of them completely.
I think this book is really good and would recommend it to anyone thinking of PG or already PG.