If you are nervous about the effect, start by replacing only half of the egg called for in a recipe. The flax seed will affect the color and add a nutty taste (plus great nutrition!) but has no effect on texture, rising or baking times.
Per Serving: 37 calories;3 g fat;
2 g carbohydrates;
1.3 g protein;
0 mg cholesterol;
3 mg sodium.