Fish and meat gives us protein.
Or
Fish and meat give us protein.
Thank you I appreciate your help.
Fish and meat gives us protein.
Or
Fish and meat give us protein.
Thank you I appreciate your help.
Fish and meat give us protein. [plural]
Jack and Jill go up the hill. [plural]
Jack and Jill is a nice story. [singular]
Fish and meat is sometimes called "surf and turf". [singular]
Conclusion: use plural with X and Y unless "X and Y" is a singular entity.
Note the last example considers the (ungodly) combination of fish & meat.