By the way, literally two minutes of searching found pages and pages of studies on lemon juice!

Here's just a few:

http://www.sciencedirect.com/science/article/pii/S0022534706031211

http://www.sciencedirect.com/science/article/pii/S0090429507001823

https://bmcurol.biomedcentral.com/articles/10.1186/1471-2490-7-18

If you were to actually look and see what I do, I'm a Functional Medicine Practitioner and do all of my own medical research. I have found tens of thousands, or possibly hundreds of thousands of research studies on natural ingredients and diets and how they effect the human body. I've literally spent the last 8 years of my life reading these studies and writing to laypeople about the positive results of these studies.

That is just my point about flat earthers not doing their research. They listen to 'guru's' who tell them that they are 'special' because they get this super secret inside information that no one has ever researched.

All the while, there are tens of thousands of studies on it. But they just simply don't bother.