Bulk Barn Protein Powder??
I still have a ways to go until I even start Opti, but I have also been using the Bulk Barn (unflavoured) protein powder. I haven't tried the chocolate as I still have some from another brand, but I've been adding the unflavoured one to shakes/smoothies I've been making with my Nutribullet. Didn't think it would taste good adding flavoured powder to veggie or fruit smoothies :) But it's been a good addition, and at least at Bulk Barn you can buy as much as you want.