Multiple choice

Your brain consists of how much fat?

  1. 0%

  2. 20%

  3. 40%

  4. 60%

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The human brain is composed of nearly 60% fat, making it the fattiest organ in the body. This high fat content is essential for insulating nerve fibers and supporting overall brain structure.