As to the Recommended Daily Allowance. I think with the 40 or 50 junker units I have I am probably getting enough just by exposure. I suppose I could sleep with one under my pillow to increase the dose! Corby ____________________________________________________________ Save $10 on Flowers and Gifts! Shop now at www.ftd.com/16714 http://thirdpartyoffers.juno.com/TGL2141/fc/Dh4GRr5bIdweo2puMJ2NYD6SSTMW5p4KixJYXsjNTxs4RupOMS7Cus2S07W/