In a magazine interview, the 31-year-old mother, pictured, says she loves meat because "c’mon, I’m Brazilian".
"But I also love animals," she admits, adding that she tries limiting red meat to once every fortnight.
"So what I find really helpful--you might think I’m crazy--is that before I eat any meat I always take one second of silence to put my hands over it and bless it and be grateful at least that it was a life."
But she tells the latest issue of British Vogue that her family also likes vegetables. She says her two sons treat broccoli like a dessert.
"My children, they are like white canvases. When Benjamin eats broccoli, he thinks it’s dessert," she told the magazine.
The world’s richest model has a 22-month-old son Benjamin with Tom Brady, her American footballer husband. She is also stepmother to the 34-year-old athlete’s son Jack, four.
She added that for Jack’s fourth birthday, she made the cake with "cocoa powder and coconut oil and, you know, those dried things--what are they called? That’s it! Dates--and I put them all in the processor, and whoosh! Delicious".
The model, who regained her 126-pound pre-pregnancy figure within weeks of giving birth in 2009, also passed along fitness advice to her sisters.
"Like I tell my five sisters, who don't work at it very hard at all (to stay fit), whatever you put in, you get out," she said.
"I’m not afraid of working hard at anything, whatever it is. I just always want to be the best that I can."
The magazine retorted that "gone are the vida loca days of her early twenties when she smoked a packet and- a-half of cigarettes a day, drank red wine every night and tucked into big hefty steaks".
"People think if you look after yourself you're being selfish, you know," she said.
"But what Tom taught me - and he is a living example of this - is that in order to be your best, you have to honour your own needs first.
"If I honour my needs first, I will be the best wife, the best mum, the best sister, the best friend. I have to come first, because then everyone benefits."
She admitted she uses a nanny, a Brazilian friend called Mayda.
Bündchen, who lives in the America with Brady, is the world’s highest-paid model, with earnings of more than £90 million, according to Forbes.
Her fortune has been amassed, through contracts over her career with Victoria’s Secret, Balenciagia, Dior, Versace, Louis Vuitton, Apple and Givenchy as well as her own clothing label.
When my mom and aunt where younger they named meat before they ate it because they said it tasted better. What are your eating rituals ONTD?