Captured provisions under blockade

How common was it for blockading ships to use captured provisions, and were those stores often poisoned?

Using captured provisions was fairly common, but deliberate poisoning was very rare.

Prize-taking could turn an intercepted vessel's stores into a useful addition to the blockader's own supply. This happened more often than modern readers might expect, although practice varied between states and wars. The risk that the captured food had been deliberately poisoned was not treated as routine. Such poisoning was very rare, making reuse of provisions a practical feature of blockade logistics.