Model Gisele Bundchen and her husband, Tom Brady, are famous for their insanely strict diets.

It's no surprise that sugar, white flour, caffeine and dairy are prohibited in their household. But totally normal foods like tomatoes, capsicums, mushrooms, eggplants and fruit are off limits too.

"[Tom] doesn't eat nightshades, because they're not anti-inflammatory," the couple's personal chef Alen Campbell told The Boston Globe in January.

"So no tomatoes, peppers [capsicums], mushrooms, or eggplants. Tomatoes trickle in every now and then, but just maybe once a month. I'm very cautious about tomatoes. They cause inflammation. The kids eat fruit. Tom, not so much. He will eat bananas in a smoothie. But otherwise, he prefers not to eat fruits."

Eat tomatoes or look like this? Decisions, decisions. Photo / Getty Images.
Eat tomatoes or look like this? Decisions, decisions. Photo / Getty Images.

Crazy, right? Who knew tomatoes were so evil. But the smugness doesn't end here, with Bundchen revealing this week that her kids don't even like sugar.

While normal children around the world celebrated Halloween by stuffing their faces with lollies and driving their parents crazy, Bundchen's kids were putting them all to shame.

"We don't really have that kind of sugar in our house," Bundchen told People magazine on Wednesday.

"I let them try one [piece], but they really only had one bite and then they didn't want it anymore. So I told them if they didn't like it I was going to give it away to other kids and they actually let me give their candy away," she added.

"It's a little different kind of sweets, so they're not used to it. I said to them, 'You know, there are so many kids that don't get candy and you guys got so many, some kids don't even get one!' And they're like, 'Oh mum, okay you can give it to them if they don't get any'."

Being a child of a health-conscious celebrity isn't always easy. Aussie chefs Pete Evans and George Calombaris have both spoken out about how they don't allow their kids to eat junk food.

MasterChef judge Calombaris also doesn't let his kid eat any crap. He says he would send his young son to birthday parties at McDonald's with a packed lunch, because he doesn't want him indulging in fast food.

Calombaris said his method isn't about being "the fun-police", but rather treating his food like a religion.

"In life, we've all got religions. Some are Buddhists, some are this, some are that, whatever, and we respect people in Australia for whatever religion that is," he said.

"For me, I look at food like my religion and I have my beliefs in food. My son knows ... we'll drive past a certain fast food chain and he'll go, 'that's bad in there, isn't it, Dad?' and I explain it's not about bad, it's about having choices in life."

"We're so much healthier, and that comes down to the fact that we've ditched gluten, dairy, processed foods and refined carbohydrates and sugars," Evans told The Paleo Way magazine in July.

"Honestly, there haven't been too many challenges because once I made this lifestyle adjustment and commitment to living paleo, I knew I wanted to stick to my guns. I'm pretty determined once I put my mind to something," he said.

He says his daughters Indii and Chilli are pretty good at eating healthily, without much parental interference.

"It's interesting because they [his daughters] generally make the right choices, even when I'm not there, which is awesome."

He used a weird analogy about bunnies to convince his daughters to not eat lollies.
"What if their bunnies wanted to eat lollies because the other bunnies in the street were, and there was a chance that maybe their bunnies would get sick or not live as long or be in pain, would they ever feed the bunnies the lollies?" he said.

"I said that they need to think of themselves as 'bunnies' and hopefully they will learn to make wise choices when it comes to what they feed themselves."