Does Germaine know what Kate eats? No. Would she criticise William's weight in the same way? Probably not. Unfortunately, Germaine's "too thin" comment has overshadowed the thought-provoking points she makes in the Newsweek article, where she discusses Kate's complex role as a woman, mother and wife within the Royal Family.
HG is a very very bad version of morning sickness. Really, superbad. Mothers can become ill very quickly if they don't consume any liquids for a few days, and they really do need to seek help. And maybe now that Her Royal Highness has kindly shed some green-tinged light on a serious condition that affects 1% of expectant mothers.