If gravity truly exists, then an apple detached from its tree must fall down towards the earth and eventually hit the ground.
It doesn’t fly up…
It doesn’t fly to the side...
If gravity truly exists, then the apple falls downwards.

If the claim made by the legend of vitamin C and kidney stones is true, then certain things – just like an apple falling under the influence of gravity – must follow accordingly.

This video simply looks at whether these things occur or not.