In 1994, an athletic man we'll call John was involved in a car crash. He was

In 1994, an athletic man we´ll call John was involved in a car crash. He was uninjured, and X-rays of his spine showed no fractures.
(TITLE FROM KONTRABAND)

That's an acceptable tradeoff.

So what you're saying is his insides are T H I C C

He ate a devil fruit

I might be like that. I am heavier than I look, have never broken a bone or had a fracture or anything like that, and have a hard time swimming and can't just float.

And here an osteopath touched my ribs and asked me when the car crash was... I was like "????never??" and he just said that one of my rib is deeper than the others which is typically found in people who went into a car crash at some point. I'm so cheaply made I should ask my parents a full refund.