Fiber and Paleo. You might find a difference of opinions on this one.
PaNu is anti-wheat and for the most part anti-fiber*.
*Greens are fibrous and not starchy or calorie dense, so if we add enough
back to replace the lost calories, we
are eating a huge amount of vegetables
now. This is in fact advocated by
authors like Colin Campbell and Joel
Furhman - it can have some effect as
the mechanical satiety and sheer work
of eating may reduce your caloric
intake. However, you will be having a
minimal effect on insulin levels at
the expense of eating fewer higher
quality animal foods and absurd
amounts of fiber - this approach only
makes sense if you think animal
products and fats per se are unhealthy
- they are not. Also you just don't need that many vegetables in general
and you don't need "fiber" at all.
When I first started doing Paleo I did spend a week supplementing probiotics and Benefiber, but this product sometimes contains guar gum and sometimes is made with wheat dextrin, so I am not certain I can really recommend it based on all the issues people may have with wheat.
Maybe I am lucky, but I have never really had an issue with IBS or constipation. I am not certain if you are having either of those issues or just feel that you should 'get fiber'. For constipation, the old fashioned generic glycerin suppositories might work best. If it is bowel issues that you are worried about, there is also this discussion on poop.
NutritionData is a great resource for identifying all of the components of the food you eat if you are concerned about a particular component.
Personally, I eat mostly bacon, cheese and fish; but I do have veggies on the side with dinner. I'm a fan of brussel sprouts, asparagus and the like which provide a little bit of fiber, but mostly I eat them for some vitamin C and K.
Edit: After this question was posted, someone posted "Is fiber necessary" here: LINK