Salt and Copper are the Culprits
Copper Causes Hair Loss
The metal copper controls hair growth and hair loss. Healthy tissue concentrations of copper lie between 1.7 and 3.5 milligrams. Everything else will cause hair loss. You can have too little copper (below 1.7 milligrams) or too much copper (above 3.5 milligrams) and the same thing will happen: kiss your hair good-bye.
Individuals metabolize copper at different rates, making copper toxicity or deficiency a personal affair. The slower your metabolic rate, the higher your copper retention, regardless of how copper gets into your system. The reverse is also true. If your metabolism works at mach speed, not much copper will accumulate, no matter the amount of copper you ingest.
Vegetarians have a greater ability to retain copper than non-vegetarians. If you don't eat meat and your hair is thinning, this could mean a simple solution to your problem.
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