Tom Brady's diet is so strict that he doesn't eat an entire group of vegetables

Tom Brady has stated that he would like to play football into his 40s.

At 38, that certainly seems possible, with Brady and the Patriots playing some of their best ball in the past decade.

Brady owes his longevity to his intense preparation, particularly his diet.

The secrets of Brady's diet have been divulged before - he eats a ton of healthy food, he doesn't drink, avocado ice cream is a treat.

However, in a profile of Brady and Gisele Bundchen's personal chef, Allen Campbell, from Boston Globe's Hillary Sargent, the extent of Brady's diet is revealed, and it's shocking how strict it is.

"80 percent of what they eat is vegetables," Campbell told Sargent. "[I buy] the freshest vegetables. If it's not organic, I don't use it."

That doesn't include all vegetables, however - Brady's diet is so strict that he cuts out some of the everyday veggies people eat because they have a negative effect on his body.

"[Tom] doesn't eat nightshades, because they're not anti-inflammatory. So no tomatoes, peppers, 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."

Tomatoes maybe once a month, no peppers, mushrooms, or eggplants ever. It doesn't end there. Campbell also said Tom eats bananas, but mainly stays away from fruit. There's also no coffee, caffeine, or dairy in his diet.

There are some aspects of Brady and Gisele's diet that sound good, however. Campbell said for snacks he'll make vegetable sushi rolls, fruit rolls, or raw chocolate chip cookies. He said their diet is also very seasonal, meaning in the winter he'll make more dishes with red meats and root vegetables, while summer meals are lighter and more salad-based. Campbell also said that when Brady and Gisele are out of town, he'll contact the resorts where they stay and give them "the lowdown" on what to make for them.

Still, this is intense preparation from a star that's defining how to extend a career. If Brady is unable to play into his 40s, he can still rest assured he had the perseverance to stick to such a strict diet in hopes of maintaining his body.