Hmmm, salad or cake?

I know y'all will absolutely hate me for this post, but I honestly put this out with good intent.
Okay, so I have a daughter who is addicted to salad, and can live on it. I also have a son who could live on cake and lollies and would be right at home in Willy Wonka's Chocolate factory.
How does one raise two entirely different taste buds? I'm sure many parents would identify with this.
I'm big on health, if u haven't already noticed, i read labels all the time. I censor everything that comes in the door. Basically, i try to make sure that if i don't want the kids to eat it, its simply NOT available at home. Generally, you won't find much in this house made of white flour, preservative and food coloring.
Personally, I absolutely LOVE fruits and green veges, and crave them, and gag on overly sweet things. Hubby on the other hand craves the sweets and has a very glum look on his face when presented with the 'must eat veges'. So what's the effect on the kiddos? Genetically, I believe they've received different tendencies towards foods. That really can't be helped. But as for training, I think exposure and conditioning have had some impact. They both eat what we eat at meal times, they both love all fruits and enjoy them, and they both eat most vegetables. So the bottom line is - even if your kids are born with 'chocolate genes', what we DO (not say) and eat plays a big part, and limiting choices can be quite helpful.