Other than the potential for an allergic reaction, I wouldn't think so. I've fed these to tiny platy fry with no ill effects. I'd imagine that a human's system would be able to handle any toxicity (if indeed there was any) better than a platy fry...even a 2 year-old, yes.
If you're worried about the possibility of an allergic reaction and want to really be on the safe side, I'd maybe contact the company to find out exactly what is in them and/or definitely
take them to your doctor and see what he/she says.
Personally I don't see the need for such pre-cautionary measures, but then again, I don't have kids to look out for either (just a spoilt pug and cat!
......and wife).
BV