Your body will tolerate sodium only in a certain concentration. The more salt you eat, the more water your system needs to dilute it. But getting rid of unneeded salt is easy - just drink more water . As it's forced through the kidneys, it takes away excess sodium. The overweight person needs more water than the thin person.
Larger people have large metabolic loads.
Since we know that water is the key to fat metabolism, it follows that the overweight person needs more water . Water helps to maintain the proper muscle tone by giving muscles their natural ability to contract and by preventing dehydration. It also helps to prevent the sagging skin that usually follows weight loss. Shrinking cells are buoyed by water , which plumps the skin and leaves it clear, healthy and resilient. Water helps rid the body of waste.