It depends on the amount of fiber in your current diet and if you're adequately hydrated! If you remember that "less is more" with increasing fiber in your diet, then for most of us, it's okay to consume chia and flax seeds together. Chia and flax seeds are abundant in two different types of dietary fiber and can be beneficial as part of a healthy diet. It is vital to remember, however, that flax seeds should always be ground or soaked before eating, as entire seeds cannot be absorbed by the human body. Constipation and bloating can occur if you consume too much, too quickly, without letting your bowels get used to extra fiber. Also, it's wise to increase your water intake at the same time.