Re: Leg swelling
Sodium from your diet is most likely the cause for the swelling.
Yes, gravity does cause fluids to accumulate in the legs. While in bed the kidneys can work more efficiently to remove excess fluids and excreted via urine.
If you sprinkle salt on your foods, eat salty foods, or a lot of starches and sweets, your body will retain more fluids. Restaurant foods contain too much sodium for good health.
An internist told me that "fat" absorbs water like a sponge. Yes, I am overweight.