Grammer

One man's meat is another man's poison.

wut???

C'mon DaMan, put your thinking cap on.

The question was, "opposite word of poison?"

My answer was, "One man's meat is another man's poison."

Try googling that phrase. It is common, no?

You could think of it as, "One man's good is another man's evil." Do you get it? Opposites? Meat versus poison? Ahhhh, never mind. Hopefully, it makes more sense to the

Don't worry, I got it MountainHiker.

Opposite of Poison, it could be Antidote.

Antidote: A medicine etc taken or given to counteract poison.
(Oxford Dictionary)

Woodward,

No worries here.

I don't think there is a "definitive" opposite of poison.

To me, good and

You're right,
That's why I put, It COULD be (and not IS). I don't think there is a true opposite either and antidote is as close as I could think of.
By the way MountainHiker, we appreciate all your informative answers here.

Woodward,

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I hope I am doing more good than harm.

My suggestion for the opposite of poision: sustenance.

yoo all B confuzing me!@

sustenance, n. 1. a means of sustaining life; nourishment. 2. the action or process of sustaining life.