Stretched out skin can indeed gain some of its elasticity back. Stretched out skin will never have the full elasticity it once had.
The excess skin won't be removed by diet alone. Your skin will regain it's elasticity as you exercise. Keep at it, use bio-oil and your skin should return to normal.
elasticity
Young's modulus
Elastic or Rubber
Elasticity of their structure.
Elasticity.
Elasticity.
Inelastic things can not be stretched or do not rebound while elastic things will stretch, bounce, rebound, etc..
elasticity
The elasticity of the rubber and sponge refers to the tendency of the rubber or the sponge to return to their original shape after they have been compressed or stretched.
When weight is gained, skin stretches and loses its elasticity(nothing you can do about it), but if you do your best to exercise this part of your body, you can tighten the skin back up depending on how badly it is stretched. Good Luck!!
the skin's elasticity