One of the converted ingredients I use for all my baking is Ener-G Baking Powder. I wanted to provide you the link and let you know as far as the recipes I have posted so far, you will have to double the amount of baking powder if you use Ener-G. Ener-G Baking Powder is gluten free, wheat free, dairy free aluminum free and low in sodium.
For future posts, I will indicate in parenthesis that the amount of baking powder is in Ener-G measurements. (Ener-G, reduce by half if using other baking powder/soda)
However, keep in mind that even the aluminum free baking powder contains corn starch. Baking soda also contains high levels of sodium. I have had no problems whatsoever converting to Ener-G for all my baking needs.
I found Ener-G in the health food section of my local grocery store, but if you cannot find it, the link will take you right to their website and order page.