I've found so many muffin, brownie and bread recipes to use with medifast but they all call for the MF eggs.

I can't eat eggs due to an allergy. Has anyone substituted baking powder or anything else for the eggs?

Any other suggestions?

Maybe this will help

What is a good substitute for eggs?

Ener-G Egg Replacer - follow directions on box.
2 tbsp cornstarch = 1 egg
2 tbsp arrowroot flour = 1 egg
1 heaping tbsp soy powder + 2 tbsp water = 1 egg
1 tbsp soy milk powder + 1 tbsp cornstarch + 2 tbsp water = 1 egg.
1 tbsp milled flax seed and 3 tbsp water = 1 egg. Light, fluffy cakes!