[moniegail]

flax is mentioned by dr atkins as something to be used in the relief of constipation. however some use it in small qtys in recipes as a binding agent or even to make flax crackers. i wouldn't think it should be used as a subsititute for flour. i'm sure you could use it in recipes, combinded with other acceptable flours, once you reach the appropriate rung in owl. (IE soy flour, almond flour, etc) i personally wouldn't use it in large qtys as LageNomAi says, it might cause bathroom issues.