Rather than just be a decoration, it would be better if the slices of lemon on the rim of the glass is squeezed into a drink that was served. Several types of diseases can be treated by relying on the content of vitamins and minerals present in lemon juice. Lemon also has the effect of antiseptic to cleanse the organs of various microbes and free radicals.
But keep in mind, lemon water that has passed through the packaging process or pasteurization will not be much help. If you want to get the maximum benefits, make sure the water is the result of lemon juice from a fresh lemon. Avoid water or drink bottled lemon flavor than lemon, because you will not get the benefits.