Any Proactive Advice to Prevent Excess Skin?

I am just starting my pre-cert 6 month diet and exercise plan and I am frustrated with having to do it, but it occurred to me that there is something constructive I could be looking into. Are any of you aware of any foods, supplements, herbs, vitamins or minerals that could help get my skin as healthy as possible before the drastic weight loss after surgery?  I am 43 years old so my skin isn't as resiliant as it used to be.  Perhaps if I could start doing something now to get it ready for such a trauma I could avoid the need for plastic surgery afterwards. Any thoughts, advice, rumors, myths, experiences to share on this one?

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