Decreased carbs = constipation?!

I'd monitor your fibre levels - make sure you're getting enough

I'm in the same boat, + I eat tons of vegetables (arounf 7+ servings a day). I think it's more to do with our body just digesting the food and utilizing every bit of it, and since none of it needs to come out, none does? Someone may correct me on this, and they may be right. but that's just what I've found.

I've been have infrequent bowel movements since eating no-carbs other than fruits and veggies. I would say eat popcorn if you can. I find that helps!

I've been ketogenic for almost 2 years and I do not have digestive problems unless I eat grain, legumes, or dairy. I also have more digestive upset if my insoluble fibre intake is too high. I would make sure that you are getting enough veggies (including soluble fibre) and water. Other than that, I don't know, but I DO know that you do NOT need grains in your diet, especially if digestive health is of concern. Adequate amounts of fibre can easily come from vegetables.

Play with your diet. There are some people that do less well on a high fat/low carb diet and better on a diet higher in starchy vegetables such as sweet potatoes and squashes. I am not one of those people but you may be.

A high protein diet can often plug you up. If you're not eating grains and beans, etc then it is possible that you aren't getting enough fiber with your vegetable and fruit intake.

Make sure you're getting plenty of veggies. I was constipated until I got up to 4-6 servings of vegetables per day. Depending on how low your carb level is, that might be really hard. I'm at 50 g/day so 4 servings a day is easy for me, 6 is really challenging.

You don't need insoluble fiber, that's a bulking agent (i.e. it makes you MORE constipated). Soluble fiber won't fix the problem either, but it might provide some short term relieve (so will a laxative). Here's a useful blog post about fiber (see Myth #12):
http://www.marksdailyapple.com/dietary-fiber-is-bad-for-sex-thats-the-only-claim-about-it-that-isnt-a-myth/#axzz30skZkfHJ

Take care of your gut bacteria. Eating vegetables will help because the fiber will ferment in your stomach and provide food for your gut bacteria. Also consider a probiotic. Here's a post that explains fibers role in gut bacteria:
http://www.marksdailyapple.com/fiber-gut-health/#axzz30skZkfHJ

Another thing that can cause (or worsen) constipation is dehydration. That's another common symptom when you reduce carbs. Make sure you drink plenty of water. You might also add some electrolytes. You don't have to buy sports drinks to do that. A slice of lemon and a pinch of salt in each glass of water will do it.

I've also read some stuff about supplementing potassium and magnesium, but I don't understand enough to be helpful on that topic.

I've been ketogenic for almost 2 years and I do not have digestive problems unless I eat grain, legumes, or dairy. I also have more digestive upset if my insoluble fibre intake is too high. I would make sure that you are getting enough veggies (including soluble fibre) and water. Other than that, I don't know, but I DO know that you do NOT need grains in your diet, especially if digestive health is of concern. Adequate amounts of fibre can easily come from vegetables.

Play with your diet. There are some people that do less well on a high fat/low carb diet and better on a diet higher in starchy vegetables such as sweet potatoes and squashes. I am not one of those people but you may be.

Thanks for this. I have been doing LCHF for about three weeks, it seems I only "go" when I eat grains. I will incorporate sweet potatoes and try to eat more veggies.

The same happened to me when I first cut carbs. I am low carb, moderate protein, high fat. What I did to fix it was to drink a bit more water and increase consumption of fibrous vegetables. I also added in low GI fruit like an apple a day. Apples are an excellent source of fiber and just adding that in really got me moving more normally.

Also drinking lemon water in the mornings really does wonders too. Can't hardly wait for lemons to be in season again!

7 servings of fruits/veggies a day isn't enough, if you aren't getting fiber from other sources. I get most of my fiber from fruits and veggies and I usually go over the suggested fiber by at least 10 grams.

Avg day for me (at 96lbs) is:

100-200 g kale
100 g celery
100-200 g lettuce
1 banana
1/2-1 cup berries
1-2 cups of cooked veggies
1-2 servings of crudités.

1/2 cup beans
1/4 cup whole grains cooked
1/4 cup raw oats.
(This is just the good stuff. There's usually a chocolate and a glass of wine in there too)

It take a lot of food to make up enough calories to keep you full from fruits and veggies. I literally eat all day. I kinda feel like I can relate to my sons guinea pigs. My digestion is very regular though.

Edited to add that artichokes are fiber beasts. I couldn't believe how much fiber they have when I logged one. Raspberries have a lot too. So does chia.

I recommend looking at the simple fixes.
1) review your water intake. The veggies you eat are supposed to work with water to help movement.
2) Don't forget fruit, they help get things moving.
3) Lower salt/sodium intake
4) Lower the amount of drinks you have that have caffene in them.
5) If you need bread, choose whole grain. Choose lite whole grain breads.

A lot of people (including me) just do not drink enough water. You are not supposed to count coffee or tea as drinking water because they are considered diuretics. I have increase my water intake and found I no longer crave bottled ice tea drinks.
Good Luck!

Coffee is the only thing that consistently works for me. Even the fiber powders don't do crap. Atrocious pun most definitely intended.