First of all definitely check out my hCG interview with Mary from Episode 69 as she did her hCG protocol as a vegetarian and we detail out some replacement vegetarian foods for Phase 2 there.
I have a few vegan sources I can give you which of course fit within vegetarian guidelines as well.
One thing that vegans on hCG are doing is utilizing the sprouted plant based protein powders for their protein intake- ie. sprouted rice protein powder (sunwarrior is a brand I have used), sprouted pea protein powder etc.
One of my absolute favorite vegan protein powders is Genuine Health’s Vegan Proteins Natural Vanilla flavor– it has a very creamy texture and flavor to it and only 2 grams net carbs per serving of 20 grams protein- so that might work for you as well. There’s also a fermented version of same brand but I haven’t tried it.
But do take note that all these replacements are off-protocol, and results vary among individuals. The only and best way to find out is to try it for yourself! There could be ladies who are successful with it but there are also who do not lose as much – our body systems are all wired differently but you can definitely try it out.
If you utilize the vegetarian protein sources that have more carbs, it is possible you may have slower losses. But in the end, it’s all about making the protocol work for us with our own belief systems and needs.
I hope that helps!