No matter how many of us there are, we all eat from the same loaf, showing that we are all parts of the one body of Christ. The principle here is that we must maintain our unity and witness in living for Christ. God calls us to be separate from the world, to be holy. But God does not call us to be monks or hermits living away from the lost sheep in the world. God expects us to be His light and His salt.
Salt standing alone and tucked away in a cabinet does nothing.
The salt must get along-side of the food to make a difference. So should we. But we must never compromise our fellowship with the Cross. We communion with Christ, we communicate with the world. Whether, then, you eat or drink or whatever you do, do all to the glory of God.