Does she have any other symptoms? Chronic conditions? In my experience, it’s all tied together. I have seen information about calculus on the teeth (there is a video on tik tok (or whatever it’s called) where they are scraping inside the gums and telling people that’s what happens if you don’t get regular cleanings, but there is not information about how it shows up one day and you can taste it, and suck out the gritty substance from the gums. I tried to look into crystallized substances in the gums. This article mentions salivary glands, but maybe it’s still connected and they don’t realize it yet.
To me it’s definitely a strong sweet taste or a distinct salty taste. I do have postural orthostatic tachycardia syndrome (idiopathic) which comes with dozens of symptoms- similar to symptoms people have with the spike protein from covid. Problems with glucose regulation, reactive hypoglycemia, exercise intolerance-like my mitochondria don’t get what they need, digestive issues, severe dehydration. I take vitamin B12 injections every 3-6 weeks (it’s improved with healing “leaky gut”). I also take Neurovite vitamins and have for years with no problems. I take digestive enzymes but did add an extra gluten enzyme for awhile -this could be the culprit, but the problem didn’t improve after stopping the enzyme. A lot of my issues go back to the dehydration and probably lack of ADH hormone. (So just drinking water doesn’t always do the trick, I have to maintain electrolytes and hard to determine how much. I take Vitassium salt capsules at times too.
I hope something I have mentioned helps her someway or another. Perimenopause is often an issue for many women and a lot stems back to managing hormones. There is a long way to go when it comes to supporting women in this area, let alone education. I am sorry she has been dealing with it for so long yet no one has taken a true commitment to determine the science behind this particular problem.
It won’t let me post a link, but search for Crystals and crystalloids in cytopathology: Incidence and importance 2022