Link between Whey Protein Powder and Gynecomastia? Is there evidence that the two are related?

It's been a week since having gynecomastia surgery and I feel great! I looked online and I found certain people trying to link Whey Protein supplements to Gyno. I don't find the evidence to be very solidifying, but with that being said, should I avoid Whey Protein supplements following gyno surgery? I'm a vegetarian so I naturally lack a bit of protein in my diet which is why I'd rather not skip out on the supplements.