As with any supplement, there is the possibility of individuals experiencing side effects. Here’s some info that will help you decide if this product is right for you. I’ve not used Animal Pak or Animal Stak. I’ve asked about possible side effects but everything I’ve found online indicates that there aren’t that many here. Dehydration was listed as with many supplements. As long as you drink PLENTY (> 1 gallon) of water, this should help. Allergies – Per their...

