What are all the wavy lines on my nails?

My nails have bumps I hear that it is from the amount of nutrients you have in your system at that particular time your nails are growing is that true?What are all the wavy lines on my nails?
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http://geebal.blogspot.comWhat are all the wavy lines on my nails?
I have heard that those white lines are due to lack of calcium in one's diet.
This caused by lack of vitamins, %26amp; in most cases could make your nails very brittle %26amp; break. There are buffing cremes made with vitamins. Buy these and keep your nails buffed. In rare cases it could be a very deep rooted problem, if it continues %26amp; your nails get large white spots under the nail, go to the doctor. Good Luck!
im not sure but i was told that it was the lack of protein you have in your body