A small carton of pure orange juice is best for me easy in handbag and doesn’t give you the bounce if you indulge in too many bouncing babies! Generally 15-20g carb in each carton and very GI. I managed to live off this whilst carrying twins and having a tummy bug got excellent readings of 6mmol. Hate lucozade and my 3 would eat all my jelly beans so not much use in my handbag. I rather like a Twirl finger naughty mixing sugar and milk but sometimes its worth the wait for sugar to kick in.