i wouldnt even know where to begin on the sale intake thing.almost everything has salt :/
Reduce ur salt intake, drink lots of water, i know this is contradictory but drinkin more water will help you pee more n will solve ur watr retention problem.. it really helped me i m 39wks now... :)
i had that with my first childand ir was pre clampsia they induced me at 36 weeks because i was so bad they can tell my protein in your urine and blood pressure but for me swelling was horrible i couldnt even wear socks i was 16 when i got pregnant with my first and had him when i was 17 and they say young first time moms are more likely to get it.
it's normal, I too had swollen feet and still do. I'm 34 wks and it has gone down some. It can be due to heat, standing too long, sitting too long. I was to that if I'm sitting for more than 30 mins to walk around some to get blood flowing. drink lots of water of course and I know it might be hard but putting your feet up for just a few mins does help. hope this helps out until you can talk to your doctor about it