You can read about various constipation remedies at the link below. Since your cat apparently does well with fiber, you can substitute mashed peas (or baby food peas) or 1/8 tsp of unflavored Metamucil for pumpkin.

Miralax is very effective and has similar action to Lactulose, but it is an osmotic laxative, not a fiber source.

Laurie

Here is a link that might be useful: constipation remedies

Sweet potatoes - the orange ones.
Winter squash - hubbard and butternut.

Both are high fiber and taste enough like pumpkin that they will probably accept it with no problems.

i had heard, right around thanksgiving last year, that this was imminent so every trip i took to walmart, i bought 10 cans. my cupboard looks like a pumpkin canning factory!

good to know there are alternatives if i run out before the shelves are restocked!

Thanks for the great answers, guys...you were smart, Ninapearl.

I always raise and freeze pumpkin for pies, and guess who didn't last year? LOL. I scarfed up pumpkin when I could find it and there wasn't any on the market shelf the last time I looked. I made three sweet potato pies this week instead of pumpkin (can't tell the difference) and noticed the beaters to my mixer had fibres all over them, so I'd think it is, like lazygardens says, a good alternative source of it.

If you are really desperate, Amazon.com has organic pumpkin for $2 or so per can.

"Growing and processing remain highly concentrated, and one state and one company so dominate the business that a disruption in the annual cycle that takes pumpkins from patch to processor to grocery can cause a popular product to disappear from store shelves for nearly a year. It could easily happen again." Quote from the June 2nd Washington Post.

Majored in Ag in college. This is why the disappearance of the family farm is not only sad, but a loss of diversity of sources should one have a bad year is the end result.

Here is a link that might be useful: Washinton Post article on pumpkin