dietary supplementation
"This is effective, but be VERY WARY of side effects. I had an incredibly severe reaction. I was born with asthma but it became very mild after age 8. For over a year I was on a similar vitamin before switching over to this one. After the first day, I noticed my nails were growing whiter and stronger. However I looked like I had a sudden break out. They were hives. 2-3 days, I was bedridden with asthma, flu-like symptoms, severe rash, vomiting. At 5-7 days, my throat swelled shut and I was in the E.R. 7 days ago, I was put on prednisone and stopped taking this vitamin. I know it was a reaction because I took the vitamin today and ended up in anaphylactic shock, back in the E.R. I have never been so incapacitated and ill. Be careful."