In line with the simple rule to eat “plants, animals, nuts, and seeds” chia seeds can be included in a Paleo-friendly lifestyle, but be sure to remember that seeds are at the very end of the list for a reason. That means that consumption should be kept to a minimum.
Chia seeds contain lots of omega-3, which is good. This is an anti-inflammatory polyunsaturated fat with numerous health benefits.
Chia Seeds also contain a significant amount of soluble fiber, the kind that feeds your gut flora. Even soluble fiber should be consumed carefully, though. If you don’t consume it on a regular basis, the sudden increase in activity in your gut can lead to uncomfortable gas and bloating.
On the other hand, studies on the health benefits of chia seeds have found markers of low-level inflammation. In at least one study, participants in the chia seed group dropped out due to gastrointestinal distress.
This is probably an example of doing what works best for you. If you notice that chia seeds give you problems, don’t eat them. If you can consume them without incident, feel free to go ahead and add them to your salad or smoothie, just be sure not to overdo it.
Mark Sisson has a few posts in which he discusses the Primal potential of chia seeds. You can read his posts here, here, and here.