Here is a review left by a customer on a product. Would you say he was satisfied or dissatisfied?
Title: RED DYE#40
Review: I gave this two stars only because I had to assign a rating to make this comment. I have not used the nectar and the rating is mere speculation. I am wondering if FDA Red#40 is the same as Red Dye 40 (red food dye). Most birding experts advise against using red dyes in hummingbird nectar. There is some evidence that these dyes cause tumors and other health problems in hummingbirds. If the concentrate contains red food dye, I wouldn't use it. It's not necessary to use red coloring in nectar to attract hummingbirds; the red in the feeder is sufficient.
