The saying came from the old cure for poison - a pinch of salt. Salt was said to have healing properties, so to eat a meal 'with a pinch of salt' meant that you suspected the meal of being poisoned.
To take something with a grain of salt is American English colloquial from 1647, from Modern Latin 'cum grano salis', implying disbelief, requiring eventual conclusion.
To take something with a "grain of salt" is to not take something too seriously. For example, I take everything that politicians say with a grain of salt, because history shows us that politicians aren't that reliable for the most part. That's my opinion.--------------------------------------------------------------------------------------Above is wrongTo take a statement with 'a grain of salt' or 'a pinch of salt' means to accept it but to maintain a degree of skepticism about its truth.The origin derives from "Pliny's Naturalis Historia, 77 A.D".
Salt is the plural of salt because you wouldn't say salts and if you wanted to say salt as in just one grain say "a grain of salt." If you specifically need to indicate a large amount, you can add "a lot of" before salt, or you can say cans/jars/shakers/bottles/pinches of salt. Salt is referred to as a noncount noun though, and it doesn't have a plural form in itself. To complicate the matter, the term "smelling salts" exists, but that's a different kind of mineral, not NaCl.
=What the does grain mean?=
The diminutive of grain is granule.
No, Salt is a mineral composed of Na and Cl ions. A grains is usually a single seed of a cereal. A grain of salt, may mean a single small piece of salt - and taken with a grain of salt is a figure of speech meaning to be skeptical.
Depends how big the grain of salt is.
And Take It with a Grain of Salt was created in 2002.
A grain can be a tiny piece of rock, yes. A grain can also be a grain of salt, meaning one 'pellet' of salt.
The expression "I took it with a grain of salt" meant "I didn't believe it".
There are approximately 58,000 nanograms in a single grain of salt.
What she says with a grain of salt
Large grain salt
With a Grain of Salt - 1913 was released on: USA: 14 March 1913
A Grain of Salt - 2008 is rated/received certificates of: USA:R (original rating)
If each grain of salt was a person, then no. If each grain of salt were 1000 people, this could be possible.
A single piece of salt is called a grain or a crystal.