Preheat oven to 325ºF and grease 9x5 inch loaf pan.
Whisk almond flour, lupin flour, psyllium husk powder, protein powder, baking powder, and baking soda together in a large bowl. Set aside.
Mix melted butter, cream, eggs, monk fruit, poppyseeds, zest, salt, and flavors in a large bowl.
Combine wet and dry ingredients and mix well. The batter will be thick.
Spread into greased pan and smooth top.
Bake for 60 minutes, untill golden and toothpick comes out clean. Cool in pan for 5 minutes while you prepare the glaze.
Heat lemon juice and sweetener until the monk fruit is dissolved. Add flavors off heat and then spoon over the loaf while it is still in the pan. Allow it to cool completely (the glaze will soak in and flavor the bread further. Once cool, remove and either slice and enjoy or freeze.