After 8 years of trying every zinc product we could find - picolinate, aspartate, chelate, even Water Oz, with only stimming and decline for my son who has high copper and troublingly low zinc, we've found sweet success at last - the New Beginnings ionic zinc concentrate we picked up at the DAN! conference caused no ill effects, and his cold cleared up in only 2 days! I tried it to, and it's got a sweet aftertaste. Now we're both using it!
Cynthia - Burnaby, Canada