Those weight loss milk drinks work a treat too, lots of fibre, not too bad a taste, and they have lots of vitamins in too. It basically helps you lose weight by making you "go" more - thus using up the extra water you may be storing. Works the same way for the other too.Oh, and drink plenty of ordinary liquid for general lubrication.
And never get a woman who has been pregnant into a conversation about constipation!!! You may end up trying the Bookshop remedy - walk into any book store and you will really need to go! Happens to me even now!
LTS