How to strengthen nails naturally?
This post may include affiliate links.
Usually not. As the metal oxidises and becomes exposed to moisture, it will start to deteriorate. Obviously some metals are better than others, and how exposed to elements you are will make a difference, but you're still going to dealing with nail fatigue at some point.
Maintaining the wood is also important, a protective sealant/paint will help reduce rot, and slow moisture exposure of the nail.
Cold working the metal is often advantageous, but I'm guessing you're not making your own nails, so probably not relevant.
Just spend the extra money to get the high quality galvanised steel nails.
I chew them on a daily basis. 7 bites per nail, 10 fingernails per day on weekdays, and 10 toenails per day on weekends. It's proven very helpful. By adding unhinged answers like these on Boredpanda, I am trying my best to Tumblrize this site. :)
My mother used to drink Knox unflavored gelatin a couple of times a week and had decent nails - never painted. My sister has beautiful nails and has always done her own manicures. I have tried many products for nails and it just isn't happening. I now use those $8.00 drugstore nails and they look better than the nails I saw on another post today.