Made it last night and my husband & I ate the whole loaf! I used olive oil instead of palm oil, and I used arrowroot instead of tapioca flour. Also, I baked for 22min in a mini-loaf pan and let it cool for 15-20min before slicing. I got 8 small slices and they were delicious! Very fluffy and raised nicely during baking. The texture was extremely fluffy and just like any sandwich roll as you’d expect.
I know that soy can cause inflammation and if you are not using soy free eggs, that could be part of the cause. It may not be the actual egg but the soy that is the problem. just a thought. Here is an article that has some interesting info on soy. http://articles.mercola.com/sites/articles/archive/2012/07/29/soy-effects-on-women.aspx?e_cid=20120729_SNL_Art_1