For me it seems to be sugar! Break diet and smash some sweets.... My legs are like god damn sausage's ready to POP!My info comes from a medical doctor, who says salt heavy foods can really flare up water retention in growth hormone.
it also depends on when you take it… if you take it before bed you can minimize effects.
But honestly, I also think processed foods in general have an impact. I think based on my own experiments that the sides from HGH can be controlled in a huge part with diet. When I stick to my diet, whole foods, nothing processed, 14iu/d is fine.
Start adding in processed shit, hands start getting numb, elbows sore. Add in sugar (could also be other types of sweeteners like corn syrup, I really don't know for sure) and my legs suck up water like crazy!