I move faster than one can blink,
And can be the base of what you eat.
I can torture body and wallet both,
while in feet, I am reused.
When living, I am the source of much food,
and soldiers lay me close to their hearts.
What am I?
Hint
For a shop I am the definition of good.
Answer
Stock
Explanation
I move faster than one can blink, - Stocks change price and owners incredibly fast.
And can be the base of what you eat. - Soup Stock
I can torture body and wallet both, - Stocks are a medieval torture device, and the stock market has ruined many
while in feet, I am reused. - Stock Footage
When living, I am the source of much food, - Livestock
and soldiers lay me close to their hearts.
For a shop I am the definition of good. - A shop's stocks is goods, by definition