Spanish (Castilian) · B2 humor

Estar más sano que una pera

Literally: "To be healthier than a pear"

To be as fit as a fiddle

Example

Después de su rutina de ejercicios, Juan está más sano que una pera.

After his workout routine, Juan is as fit as a fiddle.

Pip says

Use this when someone’s glowing with health—perfect after they’ve been hitting the gym or eating their veggies!

What does this phrase mean?