Biology
Core Concepts in Nutrition
Quick fact
The human body can survive for weeks without food, but only days without water. However, a deficiency in certain micronutrients (like vitamin C) can cause illness within weeks, even if calories are abundant.
Why this is interesting
Think about your last meal: you probably didn't eat it just because it tasted good. But have you ever wondered exactly what your body does with that sandwich, and why you can't live on pizza alone?