As doctors warn it can cause a dangerous reaction with a host of common drugs... 1  Researchers warn that grapefruit reacts with many medicines. 2  The fruit can cause devastating side-effects from stomach bleeding to kidney problems. 3  Doctors say the public is ignorant to the dangers and putting themselves needlessly at risk.
According to the definition of the question (based on light reflection and not light emission), a well-polished mirror is the the whitest substance on earth. The main reflection layer is usually made out of silver.
But even more stunning are the beaches where the sand is a pristine white, some of which have been proclaimed to have the whitest sand in the world and definitely require sunglasses for viewing! And thereâs not just one beach, but multiple scattered around the country that all vie for this honour. But what is the whitest beach in Australia?