One sweet girl lost 8 grams in the past couple of days, and for the last 24 hours has pretty much just stood still and puffed out. She has been napping in our laps, wrapped up in a towel and kept warm, and we are keeping her hyrdrated. She still gets bursts of "Did someone get a treat and I didn't?" speed, but mostly she stands still, and she doesn't protest when we pick her up. (although she cuddles and never did much, anyway) I am going off the many charts folks have left here (thank you for this wonderful resource!) but I just wanted to double check that there is no restriction for age or weight because this is going into the general waterer. (Right?) We have one little fella that is only 60grams, and the rest are 130-160+ grams, and I won't even try to figure out their age ranges. I know with my dogs and cat and kids there was always a weight consideration for meds.