If you are talking about really mild lows, like 70 or 80 I use what a nutritionist told me NOT to use, so I am letting you know they have a longer acting base, that is 2 Clif shot blocks. They are not as instant at all, so I don't know if that would fill the bill . I take them for very mild ones. If I am 60 or less, it is the old standby , tablets, which I hate. 8oz of milk does the trick and is fast,or 7 lifesavers , but then the questions is whether you are okay with him crunching all that. A box of raisins,or 2 graham cracker squares,have also been mentioned. You might want to scroll on the site, punch in a few key words, and you can read what others have used. Good luck.