Diabetics everywhere: Beware! There are now three stores of the It'Sugar chain in the New York area. Passed this one on Broadway in the Lincoln Center area yesterday. One must admit that the colorful display of all manner of candies and related sweets makes an attractive picture. I stayed just outside the entrance myself, not being attracted to anything but top-of-the-line Belgian or French chocolates. Thus I was saved from the alluring fantasy of this emporium. Small children may lose their minds here.