Bath salts are actually closer to analogues of cathinone, a drug found in a plant called Khat used as a stimulant. Also closely related are ephedrine and pseudoephedrine from Ephedra spp. Methcathinone is another illegal street drug that is actually the parent compound for many of these so called bath salts.
A: Its trueyour belly isnt the only thing expanding during your pregnancy. A pregnant body produces the hormone relaxin, which causes your pelvic ligaments and joints to loosen, and also relaxes the ligaments in your feet, allowing the bones to separate a bit. This, plus the fact that your increased weight puts more pressure on your foot arches, causing them to fall, makes your feet grow.
As you're discovering, your belly isn't the only thing that gets bigger during pregnancy! This is partly due to pregnancy weight gain and swelling from the extra fluid your body retains while you're pregnant (called edema). To ease the swelling, soak your feet in cool water and prop them up as often as you can. But there's another reason that feet seem to grow during pregnancy.