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Feeders - No Red Dye
Article | Journal		 Journal page
Looking at the Numbers
Average hummingbird weighs 3.5 grams Average hummingbird consumes 10 grams of nectar per day
World Health Organization guideline for human consumption is no more than 0.007 mg per gram of weight per day 1.0 gram of nectar contains 0.04 mg of dye

1. If an average hummingbird consumed 10 grams of nectar, how much dye would be ingested?

2. How much more dye than the limit set for humans would a hummingbird consume if it ingested the average amount of nectar?