Susan - I haven't had time to check it out, but I will next time I'm on the Net. I enjoy searching for info. Regarding the toe cramping, it might be a matter of your meds - as in "off." I have also found that when I am regular in taking my Sinemet, the toe cramping is reduced. I tease with hubby that my toes used to curl when I was turned on! Now they curl when I'm off! I'll let you know what I find. Mary in Michigan (44, 1+)