stress

My housemate got 2 kittens a couple of months ago. They're now 6 months old. Cricket is 5 1/2 years old. Cricket is afraid of them. One (Leia) pretty much ignores Cricket- the other one (Dobby) thinks it's fun to bounce off Cricket's head (no claws involved). The kittens are not aggressive...

Has anyone heard of using Magnesium as supplement for support with anxiety/ stress/ aggression etc issues? A woman I briefly met with last weekend who works with aggressive shelter dogs swore it works to help calm many dogs she's worked with but I couldn't find much information on it (for this...