@MrsA2 @AloeSvea @zand and anyone else I have missed. Thank you all for your replies and for sharing your lived experiences. Everybody's story is both interesting and inspiring and I can see that it frustrating when you feel that perhaps people do not believe you. One problem is that people on the forum are mostly anonymous and, while you know that you are reliable and accurate, we can't assume that everybody is. For a scientist to evaluate a claim, it's important that all the data are available - they need to see the numbers, the methods and the statistical analysis, not just the conclusions. To fully understand what's going on they would also be trying to answer questions like:- How do I prove this is true? Is it true for everybody or just a sub-set of people? Is there a difference between men and women? Is there a difference between old and young? What's happening with the physiology? What's happening at a biochemical level? etc etc etc.
Personal testimonies are great for inspiring the individual who can try something out to see if it works for them. They are also great for inspiring further research. However, they cannot be used as 'evidence' (for the reasons given above) so people shouldn't be upset if someone who is interested in what's going on at a detailed level looks for something more than a personal story. It's not an insult or a statement of disbelief. It's a bit like if you tell me what somebody else said - I may believe you but I also know that it counts as 'hearsay' and would not be admissible in court.
Perhaps those who have done the necessary calculations might consider writing up their personal results and sending them to appropriate research departments with a message such as, 'I found these results interesting and, although I know that people are typically inaccurate when measuring their intake, I feel confident that I was accurate. Have you ever considered doing research in this area to establish what's going on?' They might be ignored or dismissed out of hand, but every year there are people scrabbling around to find a suitable research topic for their PhD study - they might just inspire someone to take the challenge on.