The Ability To Smell What Is Genetically Determined?
Answer: Asparagus Urine
If you’re one of the people who can smell the pungent and sulfuric smell of urine produced after a meal heavy with asparagus, you’ll likely be shocked to find out that you’re in the minority. Although the majority of the people in the world excrete extra sulphur-related compounds in their urine after consuming asparagus, only about 22% of the population has the specific olfactory gene that makes them sensitive to the smell. Some people, it would seem then, can eat their asparagus blissfully unaware.
Image courtesy of Ryan Freisling.